THE PUREST SERUM NIACINAMIDE 5% & ZINC 1% 30ML This lightweight serum combines niacinamide and zinc to address multiple skin concerns with clinical precision. Niacinamide strengthens the skin barrier, minimizes pore appearance, and regulates sebum production, while zinc provides antioxidant protection and supports skin healing. The 5% niacinamide concentration delivers visible results without irritation, making it suitable for all skin types, including sensitive and acne-prone complexions. The 1% zinc enhances the formula's efficacy in calming inflammation and promoting a clearer complexion. This 30ml bottle provides a month's supply of professional-grade skincare that works synergistically to refine texture, reduce blemishes, and restore skin balance.