La Roche Posay Pure Vitamin C12 SerumPURE VITAMIN C12 SERUM A revitalizing serum enriched with pure vitamin C, neurosensine, and hyaluronic acid to enhance radiance, reduce fine lines, and improve skin texture. Why You'll Love It Brightens skin and improves radiance. Reduces fine lines and signs of fatigue. Hydrates and smooths skin with hyaluronic acid. Suitable for sensitive skin with a lightweight, non greasy texture. How to Use Apply a few drops to cleansed skin in the morning.