What should we know about glycogen?

When applied topically, glycogen primarily provides the skin with hydration. Indeed, this hydrophilic molecule is capable of retaining water on the surface of the epidermis to prevent it from evaporating. Glycogen thus strengthens the hydrolipidic film, playing a protective role, and limits water loss. It is particularly used to formulate care products for dry skin or for those wishing to prevent skin ageing. Hydration is indeed one of the key factors for supple and plump skin.

In addition to its hydrating effects, glycogen could potentially reduce the appearance of established wrinkles. Indeed, a non-independent study conducted with four individuals recently demonstrated that the twice-daily application of a cream containing 0.1% glycogen could reduce crow's feet wrinkles by an average of 42% and forehead wrinkles by an average of 54.9%. This study also involved 30 volunteers with age spots. The same protocol was followed and an improvement in pigmentation of an average of 30% was noted. However, as this was a non-independent study carried out with a relatively small number of people, caution should be exercised regarding the firming and brightening effects of glycogen.

Overall, the scientific literature indicates a lack of major risk associated with the cosmetic use of glycogen. Indeed, the inclusion of this active ingredient as a humectant in formulations does not result in redness, irritation or other adverse events. Glycogen is also entirely suitable for sensitive skin and does not present any particular incompatibility. Furthermore, its concentration in cosmetic products is not subject to any restrictions.

Nevertheless, even though glycogen is a gentle active ingredient, it is advisable to perform a tolerance test before using a cosmetic product for the first time to prevent the risk of allergies and side effects. To do this, apply a small amount of the product to the inside of your elbow, your wrist, or behind your ear and wait 24 to 48 hours to observe any potential skin reaction. Furthermore, always ensure to follow the user instructions of cosmetic products.

For the benefits it brings to the skin, we have decided to incorporate glycogen into our face cream for wrinkles and fine lines SPF 30. This hybrid formula containing 85% naturally derived ingredients helps to combat photoaging and supports the dermal collagen network, thus ensuring firmer and more resilient skin. Suitable for all skin types, it is particularly recommended for individuals showing the first signs of ageing, such as dehydration fine lines and expression wrinkles.

In addition to glycogen, this face cream contains biomimetic collagen, which supports hydration and strengthens the skin's barrier function, thereby improving its density. It also includes low molecular weight hyaluronic acid, renowned for its moisturising properties, as well as a carefully selected set of sun filters, chosen for their safety in relation to health and the environment.