Multifunctional actives

Niacinamide.

A form of vitamin B3 widely used in skincare. It may support the skin barrier and contribute to a more even, radiant appearance and reduced visible shine.

INCI name: Niacinamide
Function: Skin-conditioning ingredient and multifunctional cosmetic active.
Information level: Established evidence
Last reviewed: 22 September 2026

What it does

Useful when looking for versatile formulas: supporting hydration, the barrier, blemishes and uneven tone. Results depend on the complete formula and concentration.

Who may benefit

Generally suitable for many skin types; higher percentages are not automatically better and may feel less comfortable on reactive skin.

Compatibility

Usually combines well with humectants, ceramides, vitamin C, hyaluronic acid and UV filters.

Precautions

Introduce gradually if your skin is sensitive. Persistent redness should not be interpreted as a normal adjustment period.

How to use it

Morning or evening, depending on the formulation and tolerance.

Concentrations

Leave-on cosmetics often declare concentrations of around 2% to 10%. WAI LAB reports a product's percentage only when declared by the brand.

HOW TO READ IT

What it means in the INCI list?

In the European Union, ingredients above 1% are listed in descending order by weight; below 1%, they may appear in any order. Their position therefore cannot be used to calculate an exact percentage.

Its position helps you understand the formula, but does not on its own establish effectiveness or an exact percentage.

SOURCES

Where the information comes from.

WAI LAB distinguishes cosmetic function, regulatory context and scientific literature. This information is not a substitute for medical advice.

FROM UNDERSTANDING TO CHOOSING

Products with Niacinamide.

339 catalogue products list a recognised form of this ingredient in their INCI.

339 resultsVerified profiles with declared concentrations appear first.