Niacinamide
Niacinamide is a form of vitamin B3 and one of the most popular skincare ingredients in the UK. It is loved for its ability to strengthen the skin barrier, smooth texture and brighten dull complexions without irritation. You will find it in everything from serums and moisturisers to toners and eye creams.
How it works in skincare
In cosmetics niacinamide works by supporting the skin’s natural ceramide production which helps reinforce the barrier and reduce moisture loss. It also inhibits the transfer of melanin to the skin’s surface, visibly improving uneven tone and post-inflammatory marks over time. Its soothing and sebum-regulating properties make it a versatile multi-tasker in both leave-on and rinse-off formulas.
Key benefits
- Strengthens the skin barrier
- Helps reduce the appearance of enlarged pores
- Visibly brightens and evens skin tone
- Calms redness and irritation
- Improves skin texture and smoothness
- Regulates excess oil production
Best for
dry skin, oily skin, combination skin, sensitive skin, mature skin, blemish-prone skin
Where it comes from
While niacinamide is a water-soluble form of vitamin B3, in skincare it is produced synthetically for purity and stability. It can also be derived from plant sources such as wheat germ, rice bran or yeast.