Vitamin B3 (niacinamide) ek water-soluble vitamin derivative hai jo skincare mein use hota hai. Ye skin barrier ko strengthen karta hai, sebum ko control karta hai aur skin ko balanced rakhne mein madad karta hai. Dark spots aur hyperpigmentation kam karta hai, fine lines ko improve karta hai aur skin tone ko even banata hai. Ye generally sab ke liye acha hai aur well tolerated hota hai.