{"id":57222,"date":"2025-10-29T20:12:56","date_gmt":"2025-10-29T19:12:56","guid":{"rendered":"https:\/\/drromanovaleria.ch\/?p=57222"},"modified":"2026-06-10T11:55:00","modified_gmt":"2026-06-10T09:55:00","slug":"anti-aging-molecules","status":"publish","type":"post","link":"https:\/\/drromanovaleria.ch\/en\/blog\/molecules-anti-age\/","title":{"rendered":"Quelles sont les mol\u00e9cules anti \u00e2ge ?"},"content":{"rendered":"

WHAT ARE THE ANTI-AGING MOLECULES ?<\/h1>\n

What are anti-ageing products?<\/h2>\n

Many active ingredients have recognised properties for slowing skin ageing.
In aesthetic medicine and cosmetics, these molecules are widely used to preserve radiance and firmness.
But which truly act against signs of time, and what benefits do they offer?
Discover the main anti-ageing ingredients and their role in preventing and correcting skin ageing.<\/p>\n

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Retinol: the reference anti-ageing molecule
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Retinol, a vitamin A derivative, is undoubtedly among the most studied and effective anti-ageing molecules to date. It underpins every anti-ageing strategy.
Biologically, it acts at several levels: stimulating renewal, increasing collagen and elastin synthesis, regulating keratinisation, improving quality and skin grain, reducing fine lines and pigmentation spots.
Applied to skin, retinol gradually converts into retinoic acid, an active form binding nuclear receptors in keratinocytes and fibroblasts. This changes cellular gene expression, explaining deep, lasting effectiveness.
Retinol particularly suits visible ageing signs, thickened or dull skin and ageing prevention from the thirties.
However, use must be gradual and supervised because temporary redness, dryness or flaking may occur. In Geneva, with varying seasons and sun exposure, protocol adaptation is essential.<\/p>\n

Hyaluronic acid: hydration, volume and skin support<\/h2>\n

Hyaluronic acid is naturally present in skin, retaining up to a thousand times its weight in water. Concentration falls sharply with age, causing dehydration, volume loss and impaired elasticity.
In cosmetics and aesthetic medicine, it mainly provides intense, lasting hydration, improved suppleness and comfort, extracellular matrix support and better radiance and quality.
Different forms have varying molecular weights. Low-molecular-weight forms penetrate deeper and indirectly stimulate fibroblasts, while high-molecular-weight forms act on the surface to limit transepidermal water loss.
In aesthetic medicine, injectable hyaluronic acid also restores volume and corrects certain wrinkles. It is often combined with treatments such as botulinum toxin in comprehensive facial ageing care.<\/p>\n

Vitamin C: radiance, protection and stimulation of collagen synthesis<\/h2>\n

Vitamin C, or ascorbic acid, is a major anti-ageing molecule, both antioxidant and collagen-synthesis stimulant. It is key to preventing environmentally induced ageing.
Ses actions principales sont la neutralisation des radicaux libres, la stimulation de la synth\u00e8se de collag\u00e8ne, l’am\u00e9lioration de l\u2019\u00e9clat du teint, la r\u00e9duction des taches pigmentaires, le renforcement de la barri\u00e8re cutan\u00e9e.
Vitamin C is particularly valuable in urban environments such as Geneva, where pollution contributes to oxidative stress. Regular use preserves quality and slows premature ageing.
Stability is a major issue. High-quality medical formulation is indispensable because vitamin C is highly sensitive to air, light and heat.<\/p>\n

Peptides: the skin's biological messengers<\/h2>\n

Peptides are short amino acid chains acting as biological messengers. In anti-ageing cosmetics, they contribute to cell signalling.
Depending on type, peptides can stimulate collagen and elastin production, improve firmness and density, promote repair or modulate certain superficial muscle contractions.
Some peptides are sometimes wrongly compared to botulinum toxin in cosmetics. Their mechanism and effectiveness differ. They may slightly smooth some expression lines but never replace an injection.
Peptides are particularly valuable in long-term strategies alongside other active molecules.<\/p>\n

Antioxidants: shields against oxidative stress<\/h2>\n

Oxidative stress is a main driver of ageing. It results from imbalance between free radical production and the skin's neutralising capacity.
Antioxidants are therefore essential to protect cells, limit DNA damage, prevent premature ageing and strengthen natural defences.
Common anti-ageing antioxidants include vitamin E, ferulic acid, resveratrol, niacinamide and plant polyphenols.
These are particularly effective preventively and should be included from the first signs or even earlier.<\/p>\n

Glycolic acid: exfoliation, radiance and cell renewal<\/h2>\n

Glycolic acid belongs to alpha-hydroxy acids, or AHAs. Mainly derived from sugar cane, it is among the most used exfoliating acids in dermatology and aesthetic medicine.
Its small molecular size allows easy epidermal penetration, accelerating renewal, improving quality and skin grain, tightening pores, evening complexion and indirectly stimulating collagen.
It particularly suits dull, thickened, uneven skin or superficial ageing signs. It is also widely used in medical chemical peels performed in practice.
Use must be gradual and skin-type-adapted, as inappropriate use may irritate and sensitise. In Geneva, with strongly seasonal sun exposure, strict protection is indispensable.<\/p>\n

Combining anti-ageing molecules with medical treatments<\/h2>\n

Modern anti-ageing care extends beyond even highly formulated cosmetics. In Geneva, many patients benefit from topical care, lasers and injections combined.
La toxine botulique permet de d\u00e9tendre certains muscles responsables des rides d\u2019expression, tandis que les injections d’acide hyaluronique restaurent les volumes et la structure du visage. Ces traitements ne s\u2019opposent pas aux mol\u00e9cules anti-\u00e2ge, ils les compl\u00e8tent.
Well-prepared, hydrated skin responds better to medical treatment and ages more harmoniously.<\/p>\n

Advice for an effective anti-ageing strategy in Geneva<\/h2>\n

Visible, lasting results require fundamental principles: favour scientifically proven molecules; adapt concentrations to skin type and age; introduce gradually; systematically protect from sun; combine prevention, correction and maintenance.
Each skin is unique. A medical consultation establishes a personalised, coherent, realistic strategy considering lifestyle, environment and expectations.<\/p>\n

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Article written by Dr Romano Valeria<\/a><\/p>\n

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