Renew your skin while you sleep with Peter Thomas Roth Retinol Fusion PM Night Serum. This moisturizing treatment contains time-released microencapsulated retinol to gently exfoliate the skin and encourage cell turnover, resulting in a reduction of fine lines and wrinkles and a smoother, more even complexion..1.5% microencapsulated retinol with sustained release over a period of 8 hours.Vitamins C & E provide antioxidant benefits.Oil and fragrance free.1 fl oz.Shake well and apply to clean face nightly