Studies demonstrate retinols work to boost cell turnover and improve skin tone and texture. They stimulate collagen production, which in turn minimizes and undoes fine lines and wrinkles. Retinol successfully treats skin issues including: acne, coarse wrinkles, collagen loss, epidermal thickness, fine wrinkles, hyperpigmentation, irritation, laxity, mottled pigmentation, oxidative damage, removal of slightly atypical cells, rosacea, roughness, sallowness, scarring, skin texture.