The Ordinary 1oz Niacinamide 10% + Zinc 1% Serum for Oily Skin $4.80August 5, 2026Deals The Ordinary 1oz Niacinamide 10% + Zinc 1% Serum for Oily Skin $4.80 at Ulta Beauty. Helps to reduce the signs of congestion and visible sebum activity Aids in appearance of textural irregularities Suited for Oily Skin Key Ingredients: Niacinamide, Zinc PCA Tags# #ad