Retinol 0.5% Oil helps reduce signs of aging such as fine lines and wrinkles to achieve smoother, firmer, and more youthful-looking skin. It helps renew and resurface the skin and leaves the face glowing with radiance. Benefits : The Retinol 0.5% Oil helps reduce wrinkles, creases and fine lines while increasing the skin's elasticity and improving the skin's radiance. Retinol is a form of active and pure Vitamin A that helps improves wrinkles and firm skin. 91% Squalane calms inflammation and protects the skin's barrier. All COSRX products are formulated with skin-friendly ingredients that alleviate irritated skin. Hypoallergenic, Dermatologist tested, Animal Testing-FREE, Parabens-FREE, Sulfates-FREE, Phthalates-FREE