Neostrata Resurface High Potency R SerumGel is a powerful combination of three anti-aging ingredients: retinol, glycolic acid and citric acid. This innovative serum-gel texture makes it easier to apply on all skin types for maximum comfort and security. The formula contains a high dosage of glycolic acid, with 23% of this exfoliating chemical peel ingredient to ensure that the skin becomes smoother, blemishes and hyperpigmentation fade and the cellular turnover is boosted. Retinol has been proven many times as the best anti-aging molecule due to its ability to reduce wrinkles and boost collagen synthesis in order to increase the firmness of the skin. From the first application, the skin becomes smoother, more radiant and more flexible.