La Roche-Posay Pure Vitamin C10 Serum is a powerful anti-aging skincare solution containing 10% pure vitamin C, salicylic acid, and neurosensine. This lightweight serum helps reduce wrinkles, brighten skin tone, and improve texture while being gentle enough for sensitive skin. The 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 has a light, fast-absorbing texture that creates a velvety, non-greasy finish, making it an excellent makeup base. While the serum may naturally turn yellow when exposed to air due to vitamin C oxidation, this does not affect its efficacy. The product is dermatologically tested and made in France.