{"id":76214,"date":"2026-06-24T07:45:04","date_gmt":"2026-06-24T05:45:04","guid":{"rendered":"https:\/\/drromanovaleria.ch\/?p=76214"},"modified":"2026-09-07T17:23:47","modified_gmt":"2026-09-07T15:23:47","slug":"roles-types-collagen","status":"publish","type":"post","link":"https:\/\/drromanovaleria.ch\/en\/blog\/roles-types-collagene\/","title":{"rendered":"Types de collag\u00e8ne : lesquels et quels r\u00f4les ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"76214\" class=\"elementor elementor-76214\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d623652 e-flex e-con-boxed e-con e-parent\" data-id=\"d623652\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-c3adc5a e-con-full e-flex e-con e-child\" data-id=\"c3adc5a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ac2ad0 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"5ac2ad0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">TYPES DE COLLAG\u00c8NE : LESQUELS ET QUELS R\u00d4LES ? \n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25c6f71 elementor-align-center elementor-widget elementor-widget-breadcrumbs\" data-id=\"25c6f71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/drromanovaleria.ch\/\">Accueil<\/a><\/span><\/span><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bd66475 e-flex e-con-boxed e-con e-parent\" data-id=\"bd66475\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5905ec6 e-flex e-con-boxed e-con e-child\" data-id=\"5905ec6\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-412b51e e-con-full e-flex e-con e-child\" data-id=\"412b51e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-db0de8b elementor-widget elementor-widget-text-editor\" data-id=\"db0de8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Il existe 28 types de collag\u00e8ne identifi\u00e9s chez l\u2019\u00eatre humain, mais ils n\u2019ont ni la m\u00eame structure ni la m\u00eame fonction. Les collag\u00e8nes de type I, II, III, IV et V sont les plus connus et repr\u00e9sentent l\u2019essentiel des collag\u00e8nes \u00e9tudi\u00e9s en m\u00e9decine. Dans la peau, les types I et III sont particuli\u00e8rement importants : ils participent \u00e0 sa r\u00e9sistance, \u00e0 sa structure et \u00e0 ses propri\u00e9t\u00e9s m\u00e9caniques.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a4b34f4 e-flex e-con-boxed e-con e-child\" data-id=\"a4b34f4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ee52e98 elementor-widget elementor-widget-image\" data-id=\"ee52e98\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"220\" 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tabindex=\"0\" aria-controls=\"elementor-toc__3418ab2\" aria-expanded=\"true\" aria-label=\"Ouvrir la table des mati\u00e8res\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__3418ab2\" aria-expanded=\"true\" aria-label=\"Fermer la table des mati\u00e8res\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__3418ab2\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-194b585 e-flex e-con-boxed e-con e-parent\" data-id=\"194b585\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c6ba5c elementor-widget elementor-widget-text-editor\" data-id=\"0c6ba5c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Qu\u2019est-ce que le collag\u00e8ne et quel est son r\u00f4le dans l\u2019organisme ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-edab1b9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"edab1b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42b7bd0 elementor-widget elementor-widget-text-editor\" data-id=\"42b7bd0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le collag\u00e8ne est une famille de prot\u00e9ines structurales constituant une partie essentielle de la matrice extracellulaire. Il est pr\u00e9sent dans de nombreux tissus : peau, os, cartilage, tendons, ligaments, vaisseaux sanguins, corn\u00e9e ou encore membranes basales.<br \/>Il n\u2019existe donc pas un collag\u00e8ne unique. Le terme d\u00e9signe une famille comprenant 28 types de collag\u00e8ne, num\u00e9rot\u00e9s en chiffres romains de I \u00e0 XXVIII. Ils se diff\u00e9rencient par leur composition mol\u00e9culaire, leur organisation et les tissus dans lesquels ils sont principalement exprim\u00e9s.<br \/>Certains collag\u00e8nes s\u2019assemblent en fibrilles, v\u00e9ritables structures de soutien capables de r\u00e9sister aux contraintes m\u00e9caniques. D\u2019autres forment des r\u00e9seaux, des filaments ou assurent la liaison entre diff\u00e9rentes structures de la matrice extracellulaire.<br \/>En m\u00e9decine esth\u00e9tique, l\u2019int\u00e9r\u00eat porte principalement sur les collag\u00e8nes participant \u00e0 la structure et au vieillissement de la peau, en particulier les collag\u00e8nes de type I et III.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3acaf19 e-flex e-con-boxed e-con e-parent\" data-id=\"3acaf19\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1211f45 elementor-widget elementor-widget-text-editor\" data-id=\"1211f45\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quels sont les principaux types de collag\u00e8ne ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2baaadf elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2baaadf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb22d42 elementor-widget elementor-widget-text-editor\" data-id=\"cb22d42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Parmi les 28 types connus, cinq sont particuli\u00e8rement souvent d\u00e9crits en raison de leur importance biologique.<br \/>Le collag\u00e8ne de type I est le plus abondant dans l\u2019organisme. Il est particuli\u00e8rement pr\u00e9sent dans la peau, les os, les tendons et les ligaments.<br \/>Le collag\u00e8ne de type II constitue un \u00e9l\u00e9ment majeur du cartilage et joue donc un r\u00f4le tr\u00e8s diff\u00e9rent de celui du collag\u00e8ne cutan\u00e9.<br \/>Le collag\u00e8ne de type III est notamment pr\u00e9sent dans la peau, les vaisseaux sanguins et certains organes. Dans la peau, il est \u00e9troitement associ\u00e9 au collag\u00e8ne de type I.<br \/>Le collag\u00e8ne de type IV ne forme pas les m\u00eames fibrilles que les types I et III. Il s\u2019organise principalement en r\u00e9seaux et constitue un composant majeur des membranes basales.<br \/>Le collag\u00e8ne de type V, pr\u00e9sent en quantit\u00e9 plus faible, participe notamment \u00e0 l\u2019organisation des fibrilles de collag\u00e8ne de type I.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7468ded e-flex e-con-boxed e-con e-parent\" data-id=\"7468ded\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-63c199f elementor-widget elementor-widget-text-editor\" data-id=\"63c199f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quel est le collag\u00e8ne de type I ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5a27169 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"5a27169\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7da035 elementor-widget elementor-widget-text-editor\" data-id=\"e7da035\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le collag\u00e8ne de type I est le collag\u00e8ne le plus abondant du corps humain. Il repr\u00e9sente \u00e9galement le principal type de collag\u00e8ne du derme.<br \/>Ses fibres sont organis\u00e9es de mani\u00e8re \u00e0 apporter une r\u00e9sistance m\u00e9canique importante aux tissus. On le retrouve notamment dans la peau, les os, les tendons, les ligaments, la dentine, certains tissus conjonctifs. <br \/>Dans la peau, le collag\u00e8ne de type I constitue une part majeure de la matrice extracellulaire du derme. Il participe \u00e0 sa r\u00e9sistance et \u00e0 son architecture.<br \/>Son importance explique pourquoi une grande partie des recherches sur le vieillissement cutan\u00e9 et la stimulation du collag\u00e8ne s&#8217;int\u00e9resse \u00e0 ce type de collag\u00e8ne.<br \/>Avec l&#8217;\u00e2ge et sous l&#8217;influence de facteurs environnementaux, notamment l&#8217;exposition chronique aux ultraviolets, la synth\u00e8se et l&#8217;organisation du collag\u00e8ne dermique se modifient. La fragmentation des fibres et la diminution de la production de nouveau collag\u00e8ne participent progressivement aux modifications structurelles de la peau.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f2c7b65 e-flex e-con-boxed e-con e-parent\" data-id=\"f2c7b65\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-92e7879 elementor-widget elementor-widget-text-editor\" data-id=\"92e7879\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quel est le collag\u00e8ne de type III ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c60ae9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6c60ae9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a6a3ed8 elementor-widget elementor-widget-text-editor\" data-id=\"a6a3ed8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le collag\u00e8ne de type III est fr\u00e9quemment associ\u00e9 au collag\u00e8ne de type I. Il appartient lui aussi aux collag\u00e8nes fibrillaires.<br \/>Il est pr\u00e9sent dans plusieurs tissus, notamment la peau, les parois vasculaires et certains organes internes.<br \/>Dans le derme, les collag\u00e8nes I et III ne fonctionnent pas comme deux structures totalement ind\u00e9pendantes. Ils participent ensemble \u00e0 l&#8217;organisation de la matrice extracellulaire.<br \/>Le collag\u00e8ne de type III est \u00e9galement particuli\u00e8rement pr\u00e9sent au cours de certaines phases de r\u00e9paration tissulaire. Lors de la cicatrisation, sa production intervient pr\u00e9cocement avant un remodelage progressif de la matrice extracellulaire.<br \/>Cette dynamique explique en partie pourquoi les m\u00e9canismes de n\u00e9ocollag\u00e9n\u00e8se sont \u00e9tudi\u00e9s dans les traitements visant \u00e0 provoquer un remodelage contr\u00f4l\u00e9 de la peau.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ead2b10 e-flex e-con-boxed e-con e-parent\" data-id=\"ead2b10\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-da2194f elementor-widget elementor-widget-text-editor\" data-id=\"da2194f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quelle diff\u00e9rence entre le collag\u00e8ne de type I et le collag\u00e8ne de type III ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-63054b9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"63054b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05f6365 elementor-widget elementor-widget-text-editor\" data-id=\"05f6365\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Les collag\u00e8nes de type I et III sont tous les deux pr\u00e9sents dans la peau, mais leurs caract\u00e9ristiques ne sont pas identiques.<br \/>Le type I constitue le collag\u00e8ne fibrillaire pr\u00e9dominant du derme et contribue fortement \u00e0 la r\u00e9sistance m\u00e9canique du tissu.<br \/>Le type III est pr\u00e9sent en proportion plus faible dans la peau adulte. Il est associ\u00e9 aux fibres de type I et joue notamment un r\u00f4le important dans l&#8217;organisation des tissus et les processus de r\u00e9paration.<br \/>Le rapport entre les diff\u00e9rents collag\u00e8nes \u00e9volue \u00e9galement au cours de la vie et pendant les processus de cicatrisation.<br \/>En m\u00e9decine esth\u00e9tique, il serait n\u00e9anmoins trop simpliste de chercher \u00e0 augmenter isol\u00e9ment le \u00ab collag\u00e8ne I \u00bb ou le \u00ab collag\u00e8ne III \u00bb. Le remodelage cutan\u00e9 est un ph\u00e9nom\u00e8ne biologique complexe impliquant les fibroblastes, diff\u00e9rentes prot\u00e9ines de la matrice extracellulaire et des m\u00e9canismes permanents de synth\u00e8se et de d\u00e9gradation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0067c6c e-flex e-con-boxed e-con e-parent\" data-id=\"0067c6c\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-01c8004 elementor-widget elementor-widget-text-editor\" data-id=\"01c8004\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quel est le collag\u00e8ne de type II ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a2f4734 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"a2f4734\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45e6121 elementor-widget elementor-widget-text-editor\" data-id=\"45e6121\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le collag\u00e8ne de type II est principalement associ\u00e9 au cartilage. Il repr\u00e9sente le principal collag\u00e8ne fibrillaire du cartilage hyalin et participe \u00e0 ses propri\u00e9t\u00e9s m\u00e9caniques.<br \/>Il est donc surtout \u00e9tudi\u00e9 dans le domaine articulaire et rhumatologique.<br \/>Sa fonction est tr\u00e8s diff\u00e9rente de celle des collag\u00e8nes I et III pr\u00e9sents dans le derme. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bb7f116 e-flex e-con-boxed e-con e-parent\" data-id=\"bb7f116\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-641cd6e elementor-widget elementor-widget-text-editor\" data-id=\"641cd6e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quel est le collag\u00e8ne de type IV ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16854d9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"16854d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b5ce37 elementor-widget elementor-widget-text-editor\" data-id=\"2b5ce37\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le collag\u00e8ne de type IV poss\u00e8de une organisation particuli\u00e8re. Contrairement aux collag\u00e8nes I, II et III, il ne forme pas de longues fibrilles comparables.<br \/>Il constitue des r\u00e9seaux qui participent \u00e0 la structure des membranes basales, fines matrices extracellulaires situ\u00e9es \u00e0 l&#8217;interface de diff\u00e9rents tissus.<br \/>Dans la peau, il est notamment pr\u00e9sent au niveau de la jonction dermo-\u00e9pidermique, structure situ\u00e9e entre l&#8217;\u00e9piderme et le derme.<br \/>Son r\u00f4le est donc essentiellement architectural et fonctionnel. Il contribue \u00e0 l&#8217;organisation de cette interface, mais ne constitue pas le principal r\u00e9seau fibrillaire responsable de la r\u00e9sistance m\u00e9canique du derme.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f81b091 e-flex e-con-boxed e-con e-parent\" data-id=\"f81b091\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ffc0633 elementor-widget elementor-widget-text-editor\" data-id=\"ffc0633\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quel est le r\u00f4le du collag\u00e8ne de type V ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c895fd elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"7c895fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e36827a elementor-widget elementor-widget-text-editor\" data-id=\"e36827a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le collag\u00e8ne de type V est beaucoup moins abondant que le type I, mais sa faible quantit\u00e9 ne signifie pas qu&#8217;il soit secondaire sur le plan biologique.<br \/>Il est notamment associ\u00e9 aux fibrilles contenant du collag\u00e8ne de type I et participe \u00e0 la r\u00e9gulation de leur formation et de leur diam\u00e8tre.<br \/>Il est pr\u00e9sent dans plusieurs tissus, dont la peau et la corn\u00e9e.<br \/>Le collag\u00e8ne V illustre une caract\u00e9ristique importante de la matrice extracellulaire : ses propri\u00e9t\u00e9s ne d\u00e9pendent pas uniquement de la quantit\u00e9 de chaque prot\u00e9ine. Des collag\u00e8nes minoritaires peuvent jouer un r\u00f4le d\u00e9terminant dans l&#8217;organisation des structures form\u00e9es par les collag\u00e8nes majoritaires.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-647fdb0 e-flex e-con-boxed e-con e-parent\" data-id=\"647fdb0\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c65f96e elementor-widget elementor-widget-text-editor\" data-id=\"c65f96e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quels types de collag\u00e8ne trouve-t-on dans la peau ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1229d0 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"e1229d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66ae2e8 elementor-widget elementor-widget-text-editor\" data-id=\"66ae2e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La peau contient plusieurs types de collag\u00e8ne, mais les collag\u00e8nes I et III sont pr\u00e9dominants dans le derme.<br \/>Le collag\u00e8ne de type I constitue la majorit\u00e9 du collag\u00e8ne dermique. Le type III est pr\u00e9sent en quantit\u00e9 moindre et lui est \u00e9troitement associ\u00e9.<br \/>D&#8217;autres types sont \u00e9galement indispensables \u00e0 l&#8217;organisation cutan\u00e9e. Le collag\u00e8ne IV fait partie de la membrane basale de la jonction dermo-\u00e9pidermique, tandis que les collag\u00e8nes V et VII remplissent notamment des fonctions d&#8217;organisation ou d&#8217;ancrage.<br \/>La peau doit donc \u00eatre consid\u00e9r\u00e9e comme une architecture complexe plut\u00f4t que comme un tissu constitu\u00e9 d&#8217;un seul type de collag\u00e8ne.<br \/>Pour comprendre le vieillissement cutan\u00e9, la quantit\u00e9 totale de collag\u00e8ne n&#8217;est d&#8217;ailleurs pas le seul param\u00e8tre pertinent. La qualit\u00e9, l&#8217;organisation et le renouvellement de la matrice extracellulaire sont \u00e9galement d\u00e9terminants.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-56c258a e-flex e-con-boxed e-con e-parent\" data-id=\"56c258a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f4a84ca elementor-widget elementor-widget-text-editor\" data-id=\"f4a84ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quel type de collag\u00e8ne diminue avec le vieillissement de la peau ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68e43d3 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"68e43d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43a3a8d elementor-widget elementor-widget-text-editor\" data-id=\"43a3a8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le vieillissement cutan\u00e9 s&#8217;accompagne d&#8217;une modification progressive du collag\u00e8ne dermique, particuli\u00e8rement des collag\u00e8nes fibrillaires I et III.<br \/>Plusieurs m\u00e9canismes sont impliqu\u00e9s : diminution de la synth\u00e8se de nouveau collag\u00e8ne par les fibroblastes, augmentation de sa fragmentation, alt\u00e9ration de l&#8217;organisation de la matrice extracellulaire et modifications des interactions entre les fibroblastes et leur environnement.<br \/>Le photovieillissement provoqu\u00e9 par les expositions r\u00e9p\u00e9t\u00e9es aux ultraviolets accentue ces ph\u00e9nom\u00e8nes. Les UV favorisent notamment l&#8217;activation de m\u00e9canismes enzymatiques participant \u00e0 la d\u00e9gradation des prot\u00e9ines de la matrice extracellulaire.<br \/>Le vieillissement cutan\u00e9 ne correspond donc pas simplement \u00e0 une \u00ab perte de collag\u00e8ne \u00bb, il s&#8217;agit \u00e9galement d&#8217;une alt\u00e9ration de son renouvellement et de son organisation.<br \/>Cette distinction explique pourquoi les traitements visant la qualit\u00e9 de la peau cherchent souvent \u00e0 provoquer un remodelage tissulaire plut\u00f4t qu&#8217;\u00e0 simplement apporter une substance dans le derme.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-89e89fb e-flex e-con-boxed e-con e-parent\" data-id=\"89e89fb\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f8c3948 elementor-widget elementor-widget-text-editor\" data-id=\"f8c3948\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Quel collag\u00e8ne faut-il stimuler pour am\u00e9liorer la qualit\u00e9 de la peau ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-515ab4b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"515ab4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b0ea5bb elementor-widget elementor-widget-text-editor\" data-id=\"b0ea5bb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Dans le cadre du remodelage cutan\u00e9, l&#8217;int\u00e9r\u00eat porte principalement sur la n\u00e9ocollag\u00e9n\u00e8se dermique, avec notamment la production de collag\u00e8nes de type I et III.<br \/>Plusieurs traitements utilis\u00e9s en m\u00e9decine esth\u00e9tique cherchent \u00e0 d\u00e9clencher une r\u00e9ponse biologique contr\u00f4l\u00e9e des tissus.<br \/>Certains inducteurs de collag\u00e8ne injectables stimulent progressivement l&#8217;activit\u00e9 fibroblastique et le remodelage de la matrice extracellulaire.<br \/>Les lasers fractionn\u00e9s provoquent des zones microscopiques d\u2019ablation qui d\u00e9clenchent des m\u00e9canismes de r\u00e9paration et de remodelage dermique.<br \/>Certaines techniques utilisant une \u00e9nergie thermique, notamment la radiofr\u00e9quence, peuvent \u00e9galement induire des modifications du collag\u00e8ne existant et stimuler progressivement la production de nouvelle matrice extracellulaire.<br \/>Ces techniques ne produisent pas les m\u00eames effets et ne r\u00e9pondent pas aux m\u00eames indications. Le choix d\u00e9pend notamment de l&#8217;\u00e9paisseur et de la qualit\u00e9 de la peau, de la zone trait\u00e9e, du degr\u00e9 de rel\u00e2chement et du r\u00e9sultat recherch\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-aeb9a30 e-flex e-con-boxed e-con e-parent\" data-id=\"aeb9a30\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40eda9e elementor-widget elementor-widget-text-editor\" data-id=\"40eda9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Collag\u00e8ne injectable, inducteur de collag\u00e8ne et collag\u00e8ne naturel : quelles diff\u00e9rences ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13937ea elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"13937ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c2a94ae elementor-widget elementor-widget-text-editor\" data-id=\"c2a94ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le collag\u00e8ne injectable, les inducteurs de collag\u00e8ne et le collag\u00e8ne naturel sont des produits diff\u00e9rents.<br \/>Le collag\u00e8ne naturel est celui synth\u00e9tis\u00e9 par l&#8217;organisme et int\u00e9gr\u00e9 \u00e0 la matrice extracellulaire des tissus.<br \/>Le collag\u00e8ne injectable, aujourd\u2019hui interdit, d\u00e9signe un produit contenant directement du collag\u00e8ne et inject\u00e9 comme produit de comblement. Les anciens fillers \u00e0 base de collag\u00e8ne bovin ou humain appartenaient \u00e0 cette cat\u00e9gorie.<br \/>Un inducteur de collag\u00e8ne, en revanche, n&#8217;apporte pas de collag\u00e8ne. Il provoque une r\u00e9ponse biologique conduisant progressivement l&#8217;organisme \u00e0 produire et remodeler sa propre matrice extracellulaire.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2cbe358 e-flex e-con-boxed e-con e-parent\" data-id=\"2cbe358\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b9eb31 elementor-widget elementor-widget-text-editor\" data-id=\"3b9eb31\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Les compl\u00e9ments de collag\u00e8ne correspondent-ils aux diff\u00e9rents types de collag\u00e8ne de la peau ?<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd21d85 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"cd21d85\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20ce2bd elementor-widget elementor-widget-text-editor\" data-id=\"20ce2bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Les mentions \u00ab collag\u00e8ne type I \u00bb, \u00ab type II \u00bb ou \u00ab type III \u00bb sont fr\u00e9quemment utilis\u00e9es pour pr\u00e9senter les compl\u00e9ments alimentaires, mais il ne faut donc pas confondre le type de collag\u00e8ne indiqu\u00e9 sur un compl\u00e9ment avec la production directe de ce m\u00eame type de collag\u00e8ne dans la peau.<br \/>Apr\u00e8s ingestion, le collag\u00e8ne est soumis \u00e0 la digestion. Les peptides de collag\u00e8ne hydrolys\u00e9 ne sont donc pas transport\u00e9s tels quels jusqu&#8217;au visage pour devenir directement des fibres de collag\u00e8ne dermique.<br \/>Certaines \u00e9tudes ont observ\u00e9 des effets de peptides de collag\u00e8ne hydrolys\u00e9 sur diff\u00e9rents param\u00e8tres cutan\u00e9s, notamment l&#8217;hydratation ou l&#8217;\u00e9lasticit\u00e9. Cependant, les r\u00e9sultats varient selon les formulations, les doses et les protocoles \u00e9tudi\u00e9s.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e4f999e e-flex e-con-boxed e-con e-parent\" data-id=\"e4f999e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d22cd85 e-con-full e-flex e-con e-child\" data-id=\"d22cd85\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-ddbd8bd e-con-full e-flex e-con e-child\" data-id=\"ddbd8bd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-65a08a3 e-con-full e-flex e-con e-child\" data-id=\"65a08a3\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-9834832 e-con-full e-flex e-con e-child\" data-id=\"9834832\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-131aacd elementor-widget elementor-widget-image\" data-id=\"131aacd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/drromanovaleria.ch\/wp-content\/uploads\/2026\/09\/photo-docteur-romano-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-image-76568\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5e7f5e elementor-widget elementor-widget-text-editor\" data-id=\"e5e7f5e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Article r\u00e9dig\u00e9 par le <a href=\"https:\/\/drromanovaleria.ch\/\">Dr Romano Valeria<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6b8c328 e-con-full e-flex e-con e-child\" data-id=\"6b8c328\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7f6a712 elementor-widget elementor-widget-text-editor\" data-id=\"7f6a712\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>PARTAGER CET ARTICLE SUR<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb81906 elementor-share-buttons--view-icon-text elementor-share-buttons--skin-gradient elementor-share-buttons--shape-square elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"cb81906\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_linkedin\" role=\"button\" tabindex=\"0\" aria-label=\"Partager sur linkedin\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fab-linkedin\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-share-btn__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__title\">\n\t\t\t\t\t\t\t\t\t\tLinkedIn\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element 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