La Roche-Posay Pure Vitamin C10 Serum is a potent skincare solution containing 10% pure vitamin C, salicylic acid, and neurosensine. This lightweight, fast-absorbing serum helps combat signs of aging while brightening and evening skin tone for a more radiant complexion. This serum should be applied in the morning on cleansed face and neck, avoiding the eye area. For best results, use in combination with SPF protection. The formula may naturally turn yellow when exposed to air due to the pure vitamin C content, but this does not affect its efficacy. The serum provides instant hydration and softness while helping reduce the appearance of fine lines and wrinkles over time. Regular use helps improve skin texture and tone for a more refined, luminous appearance.