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.
The lips of celebrities have long fascinated and inspired. As a symbol of charm and elegance, they often reflect aesthetic trends that define an era. Whether plump, well-contoured or subtly enhanced, these iconic lips represent the beauty ideal for many people.
• Cupid Style : this shape enhances the upper lip, with particular emphasis on the Cupid’s bow. By slightly lifting the outer edges, it gives a youthful and refined appearance. Ideal for patients seeking a lifted, delicate and natural effect.
• Hollywood Style : inspired by movie stars, this iconic shape highlights the three distinct curves of the upper lip. The corners are gently rounded, creating a harmonious balance with a moderately enhanced lower lip. The result is near-perfect symmetry with a touch of timeless glamour.
• Classic Style : universal and discreet, this shape suits all face types. It enhances the natural "S" of the lips, with a balanced ratio between the upper and lower lips. The Classic Style is ideal for patients seeking subtle and natural enhancement.
• Pearl Style : characterized by a plump lower lip, this shape is defined by a slight central cleft, creating the appearance of elegant "pearls" on each side. It highlights the lips’ sensuality and natural glow, for a result that is both charming and sophisticated.
• Supermodel Style : favoured for its striking effect, this style emphasizes the lower lip. By adding volume to the vermilion and redefining the contours, it creates instant glamour. Ideal for patients who want a bold yet harmonious result.
• Goddess Style : the “Goddess Lips” style is defined by full, projected lips, where all five anatomical parts of the lips are harmoniously enhanced. This approach particularly accentuates volume for an elegant and glamorous result. It is best suited for patients with enough distance between the nose and chin, allowing for a balanced and harmonious outcome. Inspired by celebrities and iconic beauty figures, this style reflects sophistication and modernity.
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.
The Cupid’s bow defines the contour of the upper lip, giving it elegance and sensuality. A well-shaped bow adds character and definition to the lips. In aesthetic medicine, treating this area enhances the smile and provides a natural and refined result.
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.
