Fillers: Hyaluronic acid

The principle of filling injections (hyaluronic acid) is to lift the wrinkle from the inside to give the face a completely new radiance. The product injected is essentially made up of hyaluronic acid, a natural substance in the skin, capable of retaining up to 1,000 times its weight in water and therefore hydrating the skin in depth to give it great tone.


While the effect of a filling injection is immediate, you should generally plan several sessions of hyaluronic acid injections, followed by maintenance sessions to keep your skin beautifully toned. The areas most often treated with this non-permanent filling product are:

Hyaluronic acid can also fill in an upper lip that is too thin or not sufficiently hemmed. In certain situations, your cosmetic surgeon may proceed with a tissue graft from another part of your body (fat or even a dermis graft). Injections of hyaluronic acid produce effects for 6 to 8 months and do not require any exclusion from social life. But it must be renewed 1 or 2 times a year. Fat grafting and dermal grafts require you to withdraw from social and professional life for at least 5 days, but have a longer lifespan.


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Every surgical procedure can involve risks and complications that the patient must accept; your plastic surgeon will make it his duty to reduce the rate of these by choosing the technique best suited to your medical situation. Complications such as haemorrhage, wound or prosthesis infections and poor healing, although relatively rare, can occur with any type of surgery. This document has been drawn up to supplement the information received during the consultations. This text is not exhaustive, and cannot replace a specialist consultation; it may answer certain questions or raise others. Each patient will receive full and detailed information, in line with their own medical status and the procedure of their choice.

For more information, please consider a consultation or visit the website of the official body of the Royal Belgian Society of Plastic Surgery :

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