Target fine lines and wrinkles with Medik8’s most established routines: Crystal Retinal or R-Retinoate by night, peptides and vitamin C by day, and SPF every morning, no exceptions. The brand’s graduated strength ladder makes vitamin A refreshingly approachable, whether you’re a curious first-timer or a seasoned user. Compare strengths and formats, start low and build up gradually. Consistency, plus daily sunscreen, is what delivers smoother-looking results. Not sure where retinol ends and retinal begins? Our retinol vs retinal guide breaks it down.