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Vitamin C and its derivatives

Vitamin C, or ascorbic acid, is a powerful antioxidant. It helps protect the skin from external aggressors such as pollution and UV rays, stimulates collagen production, and reduces the appearance of pigmentation spots. When used regularly, it brightens the complexion and improves skin texture. Learn more here about vitamin C and its various forms.
Temps effets vitamine C.
Vitamins
5 min of reading
How long does it take to see the results of using products containing Vitamin C?
Formes de vitamine C.
Vitamins
6 min of reading
What are the different forms of vitamin C?

Behind the term "vitamin C" lie in fact several active ingredients. Indeed, vitamin C exists in a variety of forms, which are not all equal, particularly in terms of efficacy, tolerability and stability. What are the vitamin C derivatives? How can you recognise them on INCI lists? Continue reading to find out.

What is the difference between the effects of Vitamin C and those of Resveratrol on the skin?
FAQ
2 min of reading
What is the difference between the effects of Vitamin C and those of Resveratrol on the skin?
Can we use glycolic acid and vitamin C at the same time during our beauty routine?
FAQ
1 min of reading
Can we use glycolic acid and vitamin C at the same time during our beauty routine?
Association vitamine C et niacinamide.
Vitamins
6 min of reading
Can combining Vitamin C and Niacinamide negate their respective effects?

Creating combinations of active ingredients can prove beneficial for the skin, where each ingredient presents a list of different advantages to enhance the skin's appearance. However, some mixtures can be delicate and incompatible, to the point of cancelling out the effects or causing irritation and inflammation. Is this the case for niacinamide and vitamin C?

FAQ about vitamin c and its derivatives

What is the difference between ascorbic acid and other forms of vitamin C?

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.

Can one use vitamin C in the morning?

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

Can vitamin C combat hyperpigmentation?

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

How long does it take to observe results from vitamin C?

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.

Can vitamin C replace sunscreen?

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

Is vitamin C incompatible with retinol?

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

What are the effects of vitamin C on skin laxity?

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

Is vitamin C suitable for sensitive skin?

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.

Does vitamin C help to reduce dark circles and under-eye puffiness?

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.

Does vitamin C have beneficial effects on hair?

Yes, vitamin C is beneficial for hair. Although more studies are necessary to confirm this, some research suggests it may slow hair greying and promote hair growth.

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