Retinol Resurfacing Serum 1.0 Our highest strength for advanced retinol users, this encapsulated, and time-released pure retinol serum diminishes the look of wrinkles and firms the skin with minimal irritation. For advanced retinol users, our most concentrated formula delivers 1% pure, encapsulated retinol to actively target fine lines and wrinkles while promoting radiance, clarity, and resilience. The time-released formula, suitable for resilient skin types, ensures continuous rejuvenation while you sleep, while niacinamide strengthens the skin’s tolerance and a clinically-proven peptide unveils a smoother, firmer, more youthful complexion.