THE ORDINARY NIACINAMIDE 10%+ZINC 1% SERUM is a highly-concentrated serum designed to balance and clear the skin. It contains 10% Niacinamide and 1% Zinc PCA for maximum efficacy, offering a variety of skin benefits including pore refinement, sebum control, and reduction of skin congestion. #skincare #serum #Niacinamide #Zinc #refinement #sebum