From the Number 1 Dermatologist Recommended Skincare Brand in the UK, the La Roche Posay Retinol B3 Anti-Ageing Serum for Sensitive Skin (30 ml) is a concentrated serum infused with vitamin B3 which leaves the skin smoother, more hydrated, and dewier. Gradual Retinol release enhances the appearance of fine lines and wrinkles by stimulating the production of collagen within the skin. Buy on Amazon.