Hyaluronic acid
Written and reviewed by Dr Bernard Hayot, ophthalmologist, RPPS 10003926226.

Hyaluronic acid
Hyaluronic acid corrects the loss of volume that is one of the main signs of ageing, along with the wrinkles and folds that form as fat is lost. It is used on the cheekbones, the temples, the nasolabial fold, the mouth, the marionette lines of the chin and the jawline, often in combination with Botox. The injections also benefit the hydration and elasticity of the skin, since hyaluronic acid is a compound naturally present in the skin that becomes scarcer with age. They can also be used to refine the nose or remove a bump without surgery.
The different areas for hyaluronic acid injections
Hyaluronic acid is a molecule naturally present in the body, where it retains water. As the skin ages, hyaluronic acid levels fall, and injections help to rehydrate the skin tissue.
What is hyaluronic acid?
Hyaluronic acid is a natural component of our skin, where it holds water like a sponge to maintain hydration, tone and elasticity. It is partly thanks to hyaluronic acid that the skin keeps a youthful appearance for part of our lives. With age, the synthesis of this molecule naturally diminishes, which contributes to skin ageing, to the first wrinkles and to the loss of volume. In aesthetic medicine, hyaluronic acid can be injected into the cheekbones, the temples, the nasolabial folds and other areas of the face to restore lost volume and tighten the skin. Its volumising properties can also be used to reshape the nose, for example by correcting a hump.
Facial hyaluronic acid injections by Dr Hayot
Dr Hayot uses hyaluronic acids of varying viscosity, depending on the indication and the area to be treated.
Hyaluronic acid for dark circles
As a specialist in eyelid surgery, Dr Hayot strongly advises against filling dark circles with hyaluronic acid.
- In an area with little mobility, such as the dark circles, where lymphatic drainage is inadequate, hyaluronic acid is absorbed poorly or not at all. Over time, the product can swell with water and form an unsightly bag.
- Because the skin over the dark circles is very thin and almost transparent, hyaluronic acid can become visible and give the circles a bluish tint, known as the Tyndall effect.
Hyaluronic acid for the lips
An injection of hyaluronic acid has a volumising effect and plumps the lips without excess. It can also correct an asymmetry or an imbalance between the upper and lower lip. Beyond that volumising effect, hyaluronic acid has a moisturising power that acts like a balm and gives a glossy appearance. The product is resorbable, and the result is very natural when the surgeon doses the injections intelligently.
Hyaluronic acid for the nose
Hyaluronic acid can be used to correct the nose: to refine or lift the tip, to camouflage a bump by adding volume, or to give the illusion of symmetry. Medical rhinoplasty has the advantage of being light: it avoids the operation and its after-effects, it is reversible, and there is a very limited risk of a botched result.
Hyaluronic acid for the nasolabial folds
The nasolabial fold runs vertically from the root of the nose to the corner of the mouth. It is favoured by the movements of the mouth, in expressions and smiles, which break the skin, but also by the loss of volume in the cheekbones and the malar region, below the dark circles. The surgeon fills the wrinkles superficially and restores the volumes that have been lost, dosing the injections to achieve a natural rejuvenation. The guiding principle is to respect the shape of the face: volumes are restored, and the cheekbones or cheeks are never artificially inflated.
Hyaluronidase
The final results of hyaluronic acid injections are visible around 2 weeks after the injection. In most cases they are discreet and natural. If corrections are needed, we have a particularly effective product to dissolve the injection and perfect the result: hyaluronidase, an enzyme naturally present in the body that breaks down hyaluronic acid.
Side effects after injection
Hyaluronic acid is naturally present in our bodies. It is therefore very well tolerated, and allergic reactions are extremely rare. After your session, slight side effects may nonetheless appear, linked not to the product but to the injection itself: redness of the skin, swelling, small bruises. These effects are benign and transient, and fade naturally after a few days.
Contraindications to hyaluronic acid injection
Before any treatment, Dr Hayot checks that you do not have any of the following contraindications:
- Pregnancy
- Breastfeeding
- Autoimmune disease
- Active infection or inflammation of the area to be treated
- A history of intolerance to one or more components of the product
The price of hyaluronic acid injections with Dr Hayot
The price of a hyaluronic acid injection session depends on the area treated and on the quantity of product required. At your initial consultation, Dr Hayot will provide you with a personalised quotation.
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This page is for information. It does not replace a consultation: every situation is judged on examination.