Ultimate AAn advanced anti ageing Retinaldehyde serum that enhances skin cell renewal and radiance while you sleep. Boosted with Vitamins, Peptides and powerful antioxidants, Ultimate A provides a complete active, skin identical system that remodels, protects and restores healthy skin. Recalibrates skin to function in its youthful state. Directions Apply 2 3 drops as prescribed. Key Actives Retinaldehyde 1%, Niacinamide 4. 3%, Tetrapeptide 30, L Glutathione, L