Hyaluronic Acid: What are its Benefits for Your Skin? | FEY Cosmetics | Acide hyaluronique: Quels sont ses bienfaits pour votre peau ?

What Does Hyaluronic Acid Do for Skin?

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Hyaluronic acid, also known as hyaluronan or HA, is a natural substance found in the body that plays a vital role in keeping the skin hydrated, plump, and firm. Due to its numerous benefits for the skin, it has become a popular ingredient in skincare products.

This article will explore the various benefits of using hyaluronic acid in skincare, including improving hydration, texture, and reducing the appearance of fine lines and wrinkles.

Read our ultimate guide to hyaluronic acid for more.


A Natural Substance Found in Skin

Hyaluronic acid is a natural substance that our body produces. It is present in various body parts and fluids such as skeletal tissues, heart valves, lungs, hair follicles, and lips. However, the highest concentration of hyaluronan can be found in the skin (about 50%), eye vitreous, umbilical cord, and synovial fluid.

In the skin's dermis, HA is an essential element of the intercellular matrix, which ensures nutrition and other functions of skin cells called fibroblasts. These fibroblasts are responsible for producing skin proteins, mainly collagen and elastin. Because hyaluronic acid has the remarkable ability to hold up to 1000 times its weight in water, it plays a crucial role in moisturizing the skin.


Age Prevention

Research has shown that a decrease in the amount of hyaluronic acid in the dermis, particularly the high molecular weight form, is associated with skin aging.

As the dermis gradually loses its ability to produce hyaluronic acid, it becomes increasingly difficult for the skin to remain healthy and maintain a youthful appearance. Replenishing the body's HA supply needs to be done regularly since about half of the total hyaluronic acid synthesized by the body gets utilized on a daily basis.

Hyaluronic acid is crucial in the formation of collagen and elastin, and as their levels decrease, the appearance of fine lines and wrinkles becomes more prominent, while dehydration, sagging, and loss of elasticity can make it difficult to maintain healthy and beautiful skin. Therefore, it is important to maintain a sufficient level of hyaluronan in the body.

You can find our hyaluronic acid-powered anti-aging formulas at work in all of our anti-aging skincare products. Two great examples of such are PERLE, our anti-aging and nourishing day cream, and ETERNA, our 4-in-1 anti-aging night cream. For even more effectiveness, our high-performance anti-aging night formulas also feature two other star ingredients, natural squalane and niacinamide (vitamin B3).


Skin Moisturizing

To ensure proper hydration of the skin, an optimal amount of hyaluronic acid in the dermis is essential due to its exceptional ability to retain large amounts of water (up to 1000 times its weight). As a natural moisturizer, HA contributes significantly to skin plumpness, while its long-lasting capacity to hold moisture is beneficial for both dry and oily skin types.

Our skin moisturizers are boosted with our proprietary moisturizing formulas, such as in ACQUA Hydrating Ultra Serum, in our BRUME Refreshing Hair+Body Mist and in our BRUME Comforting Hair+Body Mist.

Click here to find out all about skin hydration, dry skin and dehydrated skin.


Reducing UV Damage

Research has demonstrated that hyaluronic acid is beneficial for reducing the skin damage caused by photo-aging and oxidation. FEY Cosmetics has discovered the most optimal ratio of low and high molecular weight HA, which enables active ingredients to penetrate the skin's surface and effectively reduce the appearance of fine lines.

Repair your skin with our anti-aging serum ÉCLAT, our nourishing night care. Its formula is a powerful 2% hyaluronic acid complex, enriched with a cocktail of organic green tea, and vitamins C (antioxidant) and B5 (moisturizing and soothing).


Collagen Booster

Along with the benefits mentioned above, hyaluronic acid also contributes to improving skin elasticity and boosting collagen production. Acting as a cushion and lubricant, hyaluronan helps reduce skin damage and stimulates fibroblasts to produce more collagen, as well as other skin proteins.

You can experiment the collagen booster effect with PERLE, our day cream and with ÉCLAT, our anti-aging night serum.


Skin Texture Enhancement

Regular use of hyaluronic acid can help to improve the texture of the skin by promoting the skin cell turnover, making it smoother, softer, and more even-toned.

Enjoy a better-looking skin thanks to TONUS, our skin firming and lifting ultra serum. Its concentrated formula will help improve your facial contour, tighten your skin, and minimize the appearance of your pores.


Skin Healing

Last, but not least, hyaluronic acid is also known to be beneficial for treating wounds and burns as it keeps damaged tissue well moisturized. Hyaluronan helps reduce scarring and infection as it releases peptides that inhibit bacterial growth and create an environment that enhances effective tissue repair and proper immune response.

Our do-it-all elixir, FUSION Regenerating Ultra Serum, is the perfect example of the benefits of using a concentrated hyaluronic acid complex to repair, soothe and moisturize the face and eye areas.



Overall, hyaluronic acid is a versatile ingredient that can benefit almost any skin type. It provides a range of benefits, from hydration and anti-aging to soothing and collagen-boosting, making it a valuable addition to any skincare routine.


Click here to discover everything you need to know about hyaluronic acid: facts, how to and FAQs.


Discover our hyaluronic acid-formulated skincare collection.

Learn more about our signature hyaluronic acid formulas.



  1. Hyaluronic Acid and Controlled Release: A Review
  2. Hyaluronic acid: A key molecule in skin aging
  3. Benefits of topical hyaluronic acid for skin quality and signs of skin aging
  4. Hyaluronic Acid: Preparation, Properties, Application in Biology and Medicine (F.Polyak and al.)
  5. The effects of molecular weight of hyaluronic acid on transdermal delivery efficiencies.
  6. Efficacy of a New Topical Nano-hyaluronic Acid in Humans.

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