Parwati Gramudyog Herbal Products Khadi Niacinamide is a soluble vitamin ingredient also known as Vitamin B3 or .B5 This ingredient can help improve many of the problems our skin may encounter. Niacinamide can help you noticeably improve skin problems such as wider pores, unbalanced skin tone, and dullness of skin. In fact, it can improve aging and dingy skin texture by mitigating damage from harmful environments!