Niacinamide (Vitamin B3) Works To Detoxify And Cleanse Pores, Reduce Irritation And Redness, And Refine Skin Texture To Maintain A Smooth And Poreless Complexion Vitamin C Potent Antioxidant Helps Support Dermal Collagen That Keeps Pores Tight Beneath The Surface While Helping Protect Skin From Environmental Aggressors By Fighting Free-Radical Damage Zinc - Clarifies Excess Pore-Plugging Sebum Responsible For Contributing To Enlarged Pore Size Peptides Power This Highly-Concentrated Serum To Refine And Diminish Visible Pore Size, While Delivering A Dose Of Free-Radical-Neutralizing Antioxidants And Collagen-Supporting Agents Achieve A Perfected Complexion Unblemished By Large Pores, Congestion, Redness, And Skin Discoloration