The Ordinary Niacinamide 10%+Zinc 1%This high performance serum combines 10% Niacinamide (Vitamin B3) with 1% Zinc PCA to effectively regulate sebum production and minimize the appearance of blemishes. The concentrated formula targets visible pores, uneven skin tone, and textural irregularities, delivering a balanced complexion without causing irritation. Ideal for oily and congestion prone skin types seeking clinical results.