Zimble 10% Niacinamide Face Serum is a serum that contains 10% niacinamide, which is a type of vitamin B3. https://www.amazon.in/Zimble-Niacinamide-Youthful-Moisture-Hydrated/dp/B09S6LY8ST Vitamin B3 is a nutrient that helps to improve the appearance of skin cells and supports the production of collagen. Zimble 10% Niacinamide Face Serum