What it means
Most topical studies use 2 to 5 percent niacinamide. Small controlled trials report effects on barrier function, oil control and uneven tone, and it is generally well tolerated.
Oral and topical niacinamide are used for different purposes. The supplement page covers oral doses and upper limits.
Also known as
- nicotinamide
- vitamin B3
- topical niacinamide
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Sources
General information, not medical advice. Talk to a clinician about any decision about your health.