Rivaj Niacinamide 10% + Zinc PCA 1% Clarifying Face Serum 30mlRivaj Niacinamide 10% + Zinc PCA 1% Clarifying Face Serum 30ml Rivaj Niacinamide 10% + Zinc PCA 1% Clarifying Face Serum 30ml is a targeted treatment for oily, acne prone, and blemish affected skin. Niacinamide (Vitamin B3) at 10% concentration works to brighten skin tone, even out discoloration, and visibly reduce the appearance of dark spots. Zinc PCA at 1% helps regulate sebum production, minimize enlarged pores, and combat acne causing bacteria