Vitamin C and its derivatives

Ascorbic acid is the form of vitamin C that is the purest. While it is highly effective, the same applies to other forms, such as ascorbyl glucoside, which are more stable and better tolerated by sensitive skin.

Yes, it is possible. Contrary to a fairly widespread misconception, the vitamin C is not photosensitising.

Yes, vitamin C can inhibit tyrosinase, the enzyme responsible for melanin production, which helps to reduce brown spots and even out the complexion.

The duration of action of vitamin C depends on the specific concern: if it is oxidative stress, only a few days, but in the case of brown spots or wrinkles, it can take several months.

No, vitamin C cannot replace sun protection, even though its antioxidant action helps to protect the skin from UV radiation.

Contrary to some common misconceptions, the vitamin C can be combined with retinol, although this combination may be slightly irritating for sensitive skin.

By neutralising free radicals and stimulating collagen synthesis by fibroblasts, vitamin C helps to prevent skin sagging.

Due to its acidity, pure vitamin C can be poorly tolerated by sensitive skin. This is one of the reasons why vitamin C derivatives are often used in cosmetics.

Certain studies suggest that vitamin C could help fade brown under-eye circles due to its brightening properties. However, it has no effect on vascular dark circles.