The lips, a subtle embodiment of elegance and attractiveness, play a central role in facial harmony. For centuries, they have captivated the collective imagination and remain a true symbol of seduction. But what makes a pair of lips “perfect” in the eyes of science ? Thanks to hyaluronic acid injections, it is now possible to enhance this part of the body while respecting the balance and uniqueness of each face. Scientific research and modern techniques are redefining lip beauty to reveal each patient’s authentic charm.
Beautiful lips are lips that are pleasant to look at, sensual, and feminine. Plump lips are often considered ideal, but normally sized lips can also be attractive if they meet certain beauty standards :
• The volume of the upper lip is two-thirds that of the lower lip.
• The projection of the upper lip slightly exceeds that of the lower lip.
• The white lip is concave, the red lip is convex.
• The Cupid’s bow is well defined, and the philtral crests are prominent.
• The angle between the nose and the lips is 90°–95° in men and 110°–120° in women.
• The peaks of the Cupid’s bow align with the center of the nostrils.
• The width of the lips should equal the distance between the two pupils.
The Merz laboratory developed a lip volumetry scale that objectively defines lip size.
Five stages have been identified :
• Stage 0 : very thin lips.
• Stage 1 : thin lips.
• Stage 2 : moderately full lips.
• Stage 3 : full lips.
• Stage 4 : plump lips.
What are the ideal proportions for lips considered attractive ? A study conducted by the research unit of the University of California, published in February 2017 in the American scientific journal JAMA Facial Plastic Surgery, attempted to answer this question.
Nearly 400 volunteers participated in the survey. They reviewed several photographs of young women's lips and rated each on a scale of 1 to 10, from least to most attractive.
The result ? Participants, both men and women, clearly preferred lips that were 50 % fuller than average. They also favored a ratio where the lower lip is twice the thickness of the upper lip. This ratio recalls the natural and harmonious lips of celebrities such as Alessandra Ambrosio or Miranda Kerr, often considered examples of perfection.
However, the study highlights an essential point : natural appearance is key. Plump and well-balanced lips are the most appealing. This research confirms that it is possible to enhance the lips while preserving a natural look through appropriate aesthetic treatments.
Depending on lip size and curvature, the shape of the Cupid’s bow, and the junction between the upper and lower lips, five lip shapes can be distinguished.
Both lips are similar in size, and the Cupid’s bow of the upper lip is well defined.
The lips are full, well-defined, and project forward.
The lips are narrow and have little volume, with a regular outline. The lower lip has more volume than the upper lip.
The lips are full, well-defined, and project forward.
Rounded in shape, the lips are plump without being overly full.
Les lèvres des célébrités fascinent et inspirent depuis toujours. Symbole de charme et d’élégance, elles reflètent souvent des tendances esthétiques qui marquent les époques. Qu’elles soient pulpeuses, dessinées ou subtilement rehaussées, ces lèvres iconiques incarnent l’idéal de beauté pour de nombreuses personnes.
- The Cupid style: this shape highlights the upper lip, with particular emphasis on the Cupid's bow. By slightly enhancing the outer parts, it gives a youthful, refined look. Ideal for patients who want a lifted, delicate and natural look.
- The Hollywood style: inspired by movie stars, this iconic shape enhances the three distinct curves of the upper lip. The corners of the mouth are slightly rounded, creating a harmonious balance with a moderately highlighted lower lip. The result is near-perfect symmetry and a touch of timeless glamour.
• Le style Classique : universelle et discrète, cette forme convient à toutes les morphologies. Elle sublime le “S” naturel des lèvres, avec un rapport équilibré entre la lèvre supérieure et inférieure. Le style Classique est parfait pour les patients qui recherchent une mise en beauté subtile et naturelle.
• Le style Perle : caractérisée par une lèvre inférieure pulpeuse, cette forme se distingue par une légère fente au centre de celle-ci, créant un effet de “perles” élégantes de chaque côté. Elle met en valeur la sensualité et l’éclat naturel des lèvres, pour un résultat à la fois charmant et sophistiqué.
- The Super Model style: acclaimed for its spectacular effect, this style focuses on the lower lip. By adding volume to the vermilion and redefining the contours, it gives an instant glamorous effect. Ideal for patients who want a striking, harmonious result.
• Le style Déesse : le style “Lèvres de Déesse” se distingue par des lèvres charnues et projetées, où les cinq parties qui composent les lèvres sont harmonieusement accentuées. Cette approche met particulièrement en valeur les volumes pour un résultat élégant et glamour. Ce type de lèvres est idéal pour les patients ayant une distance suffisante entre le nez et le menton, ce qui permet un résultat équilibré et harmonieux. Inspiré par les stars et les figures emblématiques de la beauté, ce style reflète sophistication et modernité.
The approach aiming to respect aesthetic lip standards is based on a subtle balance, achieved with one syringe of hyaluronic acid priced at 650 CHF. This cost includes the full procedure : initial consultation, selection of the appropriate product, injection following precise proportions, and post-procedure follow-up. It reflects a bespoke treatment performed within a rigorous medical framework, aligned with aesthetic expectations defined by universal beauty guidelines.
The ideal lip proportions generally follow the golden ratio of 1:1.6, where the lower lip is slightly fuller than the upper lip. This natural harmony creates an aesthetic balance of the face. However, the proportions may be adjusted according to facial morphology and patient preferences.
L’arc de Cupidon définit le contour de la lèvre supérieure, lui conférant élégance et sensualité. Un arc bien dessiné donne du caractère et de la définition aux lèvres. En médecine, la prise en charge de cette zone permet d’embellir le sourire et d’apporter un résultat naturel et raffiné.
Naturally full, well-defined, and symmetrical lips are the most sought after. The current trend favors moderate volume, a slightly fuller lower lip, and a well-defined Cupid’s bow. The goal is to maintain facial harmony for an elegant and natural result.
Over time, the lips lose hydration and volume, which accentuates wrinkles and gives a tired appearance. Plump and well-hydrated lips convey a youthful and vibrant look, as they reflect healthy skin and a fresh-looking face.
Well-defined contours, a pronounced Cupid’s bow, slightly upturned corners, and a smooth texture are key elements of sensuality. A slightly fuller lower lip and good hydration also enhance the lips’ plump and attractive appearance.
