La Roche-Posay Serum Range | Shop Niacinamide, Hyaluronic Acid, Retinol B3, Vitamin C10 & Effaclar Serums OnlineOverview If you've been trying to figure out which La Roche Posay serum is actually right for your skin, this is the breakdown you need. I've personally used all 5 of these at different points in my routine over the past year. The Pure Niacinamide 10 for dark spots and texture, Hyalu B5 for hydration and barrier repair, Retinol B3 for anti aging on evenings, Pure Vitamin C10 every morning for glow and antioxidant defence, and the Effaclar glycolic and