Portrait illustrant la qualité de la peau et le vieillissement cutané

Wrinkle filling by injection of hyaluronic acid

Dernière mise à jour : 3 June 2026

Hyaluronic acid has become essential in aesthetic medicine and skincare. Many patients turn to this natural component to combat signs of ageing, particularly wrinkles. But what exactly is hyaluronic acid, and how does it work on the skin to reduce wrinkles? This article explores everything you need to know about this miracle of modern cosmetics.

Book an appointment

What is hyaluronic acid and how does it work on wrinkles?

Hyaluronic acid

Hyaluronic acid (HA) is a substance naturally present in our bodies. It is a glycosaminoglycan, a long chain of polysaccharides (sugars) found mainly in the skin, eyes and joints. It plays an essential role in skin hydration and joint lubrication.
One of its main characteristics is its ability to retain water – up to 1000 times its weight! This property makes it a key element in keeping skin hydrated, elastic and firm. As we age, the concentration of hyaluronic acid in our skin decreases, contributing to wrinkle formation and loss of facial volume.

The different types of hyaluronic acid

There are several types of hyaluronic acid, distinguished by their molecular weight.

  • High-molecular-weight hyaluronic acid: it remains on the skin's surface, creating a protective film that helps maintain hydration. This type is often found in serums and moisturising creams.
  • Low-molecular-weight hyaluronic acid: this type penetrates deeper into the skin and can stimulate collagen production, strengthening skin elasticity and firmness.
  • Cross-linked hyaluronic acid: used mainly in dermal filler injections, this type of hyaluronic acid is chemically modified to last longer in the tissues.

Each type of hyaluronic acid has specific applications depending on the skin's needs and treatment goals.

How does hyaluronic acid work on wrinkles?

Hyaluronic acid is widely used in anti-ageing treatments for its hydrating and volumising effects. Here is how it works to reduce wrinkles:

  • Hydration and water retention: by attracting and retaining water, hyaluronic acid keeps skin well hydrated, immediately improving its appearance. Well-hydrated skin is smoother and suppler, and fine lines caused by dehydration are reduced.
  • Volume and firmness: hyaluronic acid injections can fill wrinkles and restore volume lost with age. When injected into the skin, hyaluronic acid acts as a "cushion" to support facial structures and smooth hollows or wrinkles.
  • Stimulating collagen synthesis: studies show that hyaluronic acid can also stimulate collagen production. Collagen is a protein essential for skin firmness and elasticity. Collagen production decreases with age, but using hyaluronic acid can help reverse this process.

The different types of wrinkles treated with hyaluronic acid

Hyaluronic acid is effective against several types of wrinkles.

  • Static wrinkles: caused by the loss of collagen, elastin and hyaluronic acid, these wrinkles are visible even when the face is at rest. Hyaluronic acid injections fill these wrinkles. Examples include nasolabial folds, marionette lines and lip wrinkles.
  • Dynamic wrinkles: these wrinkles appear with repetitive facial muscle movements, such as smiling or frowning. Although botulinum toxin is often used for these wrinkles, hyaluronic acid can also be used as a complementary treatment for certain indications. Examples include forehead wrinkles, crow's feet and frown lines.
  • Dehydration lines: these small, superficial fine lines appear when the skin lacks hydration. Injecting a specific hyaluronic acid, Skinbooster , reduces them by improving the skin's hydration level. A real radiance boost.

All the benefits of hyaluronic acid

Besides its effect on wrinkles, hyaluronic acid has several other benefits for the skin.

  • Improving skin elasticity: by stimulating collagen and elastin production, hyaluronic acid improves skin elasticity, making it firmer and more resistant to external aggressors.
  • Accelerating healing: hyaluronic acid promotes the healing of wounds and skin inflammation by regulating inflammation and accelerating tissue repair.
  • Protection against free radicals: hyaluronic acid also has antioxidant properties, helping protect the skin against free radical damage, such as that caused by UV exposure and pollution.

Applications of hyaluronic acid

There are several ways to use hyaluronic acid to treat wrinkles.

  • Filler injections: this is the most widely used method for treating deep wrinkles and restoring facial volume. Hyaluronic acid injections are performed by a doctor, who chooses the product type and appropriate technique according to the patient's needs.
  • Injections for facial beautification and contouring.
  • Body injections, using Hyacorp.
  • Serums and creams: topical products containing hyaluronic acid are ideal for hydrating the skin's surface. They can be used alongside injections.
  • Masks and patches: these products contain high concentrations of hyaluronic acid and are used for intense, immediate surface hydration.

Who is hyaluronic acid suitable for?

Hyaluronic acid is suitable for almost all skin types and particularly for people wishing to combat signs of ageing, such as wrinkles, loss of firmness and lack of hydration. It is also indicated for those seeking a natural, non-invasive solution to improve their skin's appearance.
However, consulting an experienced doctor before considering hyaluronic acid injections is essential. They can assess the patient's specific needs and recommend the most appropriate treatment.

Results and maintenance of hyaluronic acid treatments

The results of hyaluronic acid injections are visible immediately after treatment and optimal three weeks later. How long the effects last depends on several factors, such as the product type, the area treated and the patient's metabolism.
Generally, effects can last between 6 and 18 months. Regular maintenance sessions are recommended to maintain results.

Why choose hyaluronic acid?

In conclusion, hyaluronic acid is an effective, safe option for treating wrinkles and restoring youthful skin. Its ability to hydrate, fill and stimulate collagen production makes it an essential ally in combating skin ageing. Whether through injections, serums or topical treatments, hyaluronic acid meets each patient's specific needs.
For those considering injections, consulting an experienced doctor is essential for personalised advice and the best results.

Dr Valeria Romano

Article written by Dr Valeria Romano

Dr Valeria Romano supports each patient through a comprehensive approach to facial, body and intimate aesthetics, as well as skin and hair quality. Every treatment is based on a personalised medical assessment.

Learn more about Dr Valeria Romano
Contact Dr Valeria Romano : +41 78 209 02 89 dr.romano.valeria@gmail.com

Share this article