Benefits: A powerful serum to fights the signs of aging by breaking down dead, dull skin and restoring cell turnover and collagen. Retinol serum uses a two-pronged approach to restoring a more youthful skin surface. First, glycolic acid breaks down dead, dull skin cells, while 1% retinol stimulates cell turnover and collagen synthesis. The overall result is the gradual elimination of old, unhealthy skin and the accelerated emergence of younger, stronger skin. Retinol is a research-proven wrinkle treatment that fights fine lines and environment damage, restoring the glow of youthful skin.