La Roche-Posay Pure Niacinamide 10 Serum is a concentrated facial treatment featuring 10% pure niacinamide to target dark spots, uneven skin tone, and enlarged pores. This dermatologically-tested formula includes hyaluronic acid for hydration and is suitable for all skin types, including sensitive skin. The serum contains 5% HEPES for gentle exfoliation and helps repair the skin barrier while providing multiple benefits like brightening, pore reduction, and redness relief. For best results, apply morning and/or evening to face and neck before moisturizer. Can also be used on hands if needed. Should be used in conjunction with daily UV protection. Avoid direct contact with eyes. The formula is allergy-tested and ophthalmologically tested on sensitive eyes and eye area.