What are expression lines and how are they treated ?
Expression lines, also called dynamic wrinkles, are the first to form, often from the thirties. They result from repeated facial muscle contractions associated with daily expressions : frowning, smiling, squinting, surprise, etc.
Initially, they are visible only during movement. Over time, reduced skin elasticity and thinning collagen fibres gradually make them permanent, even at rest.
The main expression lines are frown lines (glabella) between the eyebrows, horizontal forehead lines and crow's feet around the eyes.
Medical treatment uses botulinum toxin, the reference for relaxing affected muscles and preventing wrinkle establishment. Effects become visible within days and last around 4 to 6 months. Established wrinkles may require complementary Skinbooster or fluid hyaluronic acid injections.
What are static wrinkles and how are they treated ?
Static wrinkles appear independently of facial movement. They result from deeper skin ageing involving loss of dermal density, declining collagen and elastin, chronic dehydration and sometimes subcutaneous fat loss.
These wrinkles remain visible continuously, even in a fully relaxed face. They reflect structural tissue changes.
Examples include nasolabial folds, marionette lines, neck wrinkles and décolletage wrinkles.
Deeply injected cross-linked hyaluronic acid fillers restore volume and smooth folds. Medical facelift techniques often precede filling the wrinkle itself.
What is a laxity-related wrinkle ?
Over time, the skin gradually loses its ability to resist gravity. Tone decreases, accentuated by fat loss, fewer supporting fibres and reduced muscle activity. This causes facial structures to sag. The resulting wrinkles are not simple skin folds : they reflect overall descent of facial architecture.
These signs often become visible from the fifties. Facial contour definition decreases, sometimes with jowls. Platysmal bands may appear beneath the chin, while the cheeks flatten and lose their natural shape. The neck also becomes lax, contributing to an aged impression.
Medical treatment uses lifting techniques with hyaluronic acid injections. Collagen stimulators and laser photorejuvenation are complementary treatments.
What are gravitational wrinkles and why do they appear ?
Often confused with skin laxity, gravitational wrinkles are deep folds accentuated by gravity. They do not always result from volume loss but rather gradual weakening of deeper facial support structures. These folds become more visible when vertical support loosens ; they may partially soften when lying down.
Combining deep volume restoration through hyaluronic acid or Sculptra injections with dermal stimulation techniques provides natural results. The aim is not to inflate the face but to restore discreet, harmonious support. The strategy must remain gradual and suited to each face's biomechanics to preserve expression and balance.
What are dehydration lines and how are they corrected ?
Dehydration lines are small superficial lines appearing when the skin loses too much water. Cold, stress or unsuitable skincare often worsen them. They are particularly noticeable in the light, on the cheeks, around the eyes, forehead, neck and décolletage. Skinboosters, very fluid hyaluronic acid, provide deep, lasting hydration. Enhancing their action requires an appropriate skincare routine with gentle cleansing, sun protection, antioxidants and lipid-rich creams to protect the skin barrier. Aesthetic medicine recommends treating these lines as soon as they appear to improve skin quality and prevent permanent establishment.
What is a mixed wrinkle and which treatment should you choose ?
In practice, most wrinkles do not fall into a single precise category. The same wrinkle often results from several simultaneous mechanisms, making analysis even more essential to selecting appropriate treatment.
Consider crow's feet. Repeated orbicularis oculi contractions cause them, making them expression lines. However, thin skin around the eyes, dehydration and sometimes loss of support at the temples and cheekbones also accentuate them. Botulinum toxin alone is then insufficient for a satisfactory result.
Similarly, nasolabial folds are not caused solely by gravity. Smiling movements, cheek volume loss and overall midface laxity also contribute. Simply filling the fold without correcting other causes risks an artificial result or heavier expression.
These mixed wrinkles therefore require a comprehensive strategy combining injections, stimulation techniques and sometimes cosmetic care. This approach not only softens the visible wrinkle but also corrects its deeper causes while preserving natural facial expression.
This is where medical expertise matters : viewing a wrinkle not as an isolated defect but as a sign of a broader imbalance.
Why is identifying wrinkle type important ?
A wrinkle is never merely a surface fold. It reflects a deeper imbalance, whether muscular, dermal, tissue-related or environmental. Precise medical analysis is therefore essential to determine wrinkle type and choose the most appropriate technique, whether filling, dermal stimulation or muscle relaxation. This avoids unsuitable or excessive treatments, preserves natural facial harmony and establishes a gradual, personalised care plan.
The quality of this initial analysis is decisive. The aim is not to fill every wrinkle at any cost but to understand its origin, restore facial balance and support ageing subtly and appropriately.
How does a wrinkle change over time ?
A common mistake is to consider wrinkles fixed marks. In reality, they evolve over time, moving from a reversible state to a permanent structure as the skin loses its ability to compensate for muscle contractions, external stressors and declining essential components such as collagen or elastin.
Three main stages are generally distinguished in this process.
Initially, the wrinkle is dynamic : it appears only when the underlying muscle contracts. Forehead lines, glabellar lines and crow's feet are examples. At this stage, treatment is mainly preventive. Botulinum toxin limits overly intense contractions and delays the wrinkle becoming fixed in the dermis.
Next, the wrinkle becomes visible even at rest. The skin can no longer fully relax, reflecting collagen and elastin deterioration. It is then called a static wrinkle.
Finally, at the most advanced stage, the wrinkle becomes structural. It is pronounced, deep and sometimes associated with hollowing or localised sagging.
Understanding this gradual evolution is essential in aesthetic medicine. It adapts treatment not only to wrinkle type but also its stage of development. Incorporating time into the care plan ensures more natural, lasting results.
What are the different wrinkle types and how are they treated ?
Every wrinkle reflects a distinct mechanism, whether dynamic, structural, gravitational or linked to density or hydration loss. Anti-wrinkle treatment success rests on the doctor's ability to identify each wrinkle precisely and provide targeted care respecting facial physiology.
An experienced doctor knows how to restore facial balance thoughtfully, precisely and moderately rather than erase wrinkles at any cost.
