Niacin vitamin B3 ka ek form hai jo skin cells ke energy metabolism ko support karta hai aur skin barrier ko strong banata hai. Topical skincare mein isko niacinamide ke saath use kiya jata hai ya niacinamide mein convert ho jata hai. Isse skin ka hydration badh jata hai, skin tone bhi improve hota hai jab sahi tarike se formulate kiya jaye.