Vitamin B3 for the skin: niacinamide

Niacinamide, or vitamin B3, is one of the most versatile and well-tolerated radiance-boosting active ingredients in cosmetics. It helps to even out skin tone, reduce the appearance of dark spots, mattify the complexion, and strengthen the skin barrier. Known for its gentleness, it is suitable for most skin types, including sensitive ones, making it a staple in radiance routines.

Behind this technical name lies a star ingredient in modern cosmetics. Niacinamide checks many boxes at once, which explains its presence in so many serums and creams. Here's what you need to know about this ingredient and how to intelligently incorporate it into your routine.

What is niacinamide?

Niacinamide (also known as nicotinamide) is a form of vitamin B3, a water-soluble vitamin. When applied topically, it is valued for its versatility and excellent tolerability: it addresses several aspects of the complexion without the aggressiveness of some more potent active ingredients.

It is this gentleness, combined with its effectiveness in improving skin appearance, that makes it a top choice for a radiant complexion, even for those new to skincare.

Niacinamide and skin radiance

Niacinamide is known for helping to even out skin tone and reduce the appearance of dark spots. It helps to unify the complexion's appearance, making it visually more homogeneous and luminous.

By also helping to reduce the appearance of marks left by previous irritations, it contributes to maintaining an even skin tone over time. (Read: Dark Spots and Skin Radiance: The Guide to Luminous Skin)

Mattified appearance and skin comfort

Niacinamide helps to mattify the skin's appearance, making it an asset for combination to oily skin or skin prone to imperfections. Less shiny skin often appears clearer, with a more regular texture.

It thus appeals to those looking for an active ingredient that is both radiance-boosting and mattifying, without drying out the skin.

Strengthening the skin barrier

One of the great advantages of niacinamide is its action on the skin barrier. By promoting the production of ceramides, essential lipids in the skin's protective film, it helps to limit water loss and better defend the skin against external aggressions.

The result: more comfortable, better hydrated, and often less reactive skin, creating a true virtuous cycle for radiance.

Concentration, tolerability, and combinations

Niacinamide is effective even at moderate concentrations: from 2%, it helps to even out skin tone and reduce the appearance of dark spots; around 4%, it also acts on pore appearance and texture. It is generally very well tolerated, even by sensitive skin, although a preliminary patch test on a small area is still advisable.

It pairs well with other radiance-boosting active ingredients. Alongside vitamin C, it complements the antioxidant approach; our Vitamin C Radiance Serum and our Ginkgo Antioxidant Booster are in line with this approach to a luminous complexion. If your skin is sensitive, introduce active ingredients one by one. (Read: Vitamin C for the skin)

To find out if niacinamide is the right active ingredient for your skin, and where it fits into your routine, the Skin Intelligence diagnosis offers a personalized analysis.

FAQ

At what concentration should niacinamide be used?

Moderate concentrations (around 2 to 5%) are sufficient to benefit from its effects on skin radiance and uniformity, while maintaining skin comfort.

Morning or evening?

Niacinamide can be used morning and evening. Many prefer it in the evening, especially if they reserve vitamin C for the morning.

Can it be combined with vitamin C?

Yes. The two active ingredients complement each other well. For reactive skin, you can use them at different times of the day to optimize tolerability.

Is niacinamide suitable for sensitive skin?

It is generally very well tolerated and appreciated by sensitive skin, especially for its action on the skin barrier. A patch test on a small area is still recommended.

Does niacinamide make dark spots disappear?

No. It helps to improve the appearance of the complexion and its uniformity. Persistent hyperpigmentation or melasma requires dermatological advice.

In summary

Niacinamide is a complete yet gentle radiance-boosting active ingredient: it helps to even out skin tone, reduce the appearance of dark spots, mattify the complexion, and strengthen the skin barrier. Well-tolerated, it finds its place in most routines, alone or in synergy with vitamin C.

To build a radiance routine adapted to your skin, take the Skin Intelligence diagnosis.

Sources: Healthline, NCBI/PMC, MedicineNet, Cosmoderma. Informative article, without medical scope.

Information provided for cosmetic and educational purposes; it does not constitute medical advice.