Scars and Peels: What you need to know
26 May 2025
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Hyaluronic acid is everywhere: in creams, serums, food supplements… But what does it really do for our bodies? Behind this scientific name lies a molecule naturally produced by our body, whose benefits have been scientifically proven. Here’s why it deserves your full attention, whether you want to improve your skin’s hydration, soothe your joints or soothe dry eyes.
Imagine a tiny sponge capable of absorbing up to 1,000 times its weight in water. This is precisely the role of hyaluronic acid in our bodies! Discovered in 1934 by two biochemists, this complex sugar is naturally present in the skin, joints and eyes. Unfortunately, its production diminishes with age – at 50, our body contains half as much as it did at 20. Hence the importance of external supplements [12].
Hyaluronic acid acts as a veritable “water reservoir” within the dermis. A 2017 INSERM study revealed that it stimulates collagen production, resulting in a visible reduction in wrinkle depth after 8 weeks of application [17]. In aesthetic medicine, injections exploit this property to smooth nasolabial folds or reshape lips, with effects lasting between 12 and 18 months [13][16].
Thanks to its unique molecular structure, hyaluronic acid forms a protective film on the skin’s surface. The result: a 76% reduction in water loss according to clinical tests, even when exposed to cold or pollution [4].
In the knees and hips, hyaluronic acid is an essential component of synovial fluid, which absorbs shocks and reduces joint friction. A meta-analysis including 60 clinical trials (2022) confirmed its efficacy for :
By maintaining an optimal moist environment, hyaluronic acid promotes cell regeneration. Studies on skin ulcers have shown 30% faster healing compared with conventional dressings [6][12].
A solution containing 0.1% hyaluronic acid reduced eye stinging by 42% over 15 days, according to a randomized placebo-controlled study [6].
Below is an image illustrating a hyaluronic acid injection performed by Dr. JL Durand. This procedure demonstrates the precision and expertise of aesthetic medicine, aimed at restoring volume and restoring youthfulness and radiance to the skin.
Caution: Although generally well tolerated, hyaluronic acid can cause temporary redness in around 3% of users when applied topically [16].
Hyaluronic acid is by no means a miracle cure, but it is a real asset for preserving skin hydration, protecting joints and ensuring a good level of skin comfort. The key is to use it appropriately, combining external care with a healthy lifestyle (moisturizing, sun protection). Before any injection, medical advice is essential to determine the best approach. And remember: the best anti-aging product of all is… your smile!
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