Niacinamide - mechanisms of actio…use in dermatology.

Niacinamide (vitamin B3) can reduce itching, fight bacteria, calm redness, protect from sun damage, control oil production, and even out skin tone—but the strength of these effects depends on how much is in the product. The research shows it works safely on skin, though scientists say more real-world testing is needed to fully confirm how well it treats specific skin conditions.