Some By Mi Retinol Intense Reactivating Serum 30mlDESCRIPTION This serum contains retinol, retinal, and bakuchiol to help reduce signs of aging and improve skin elasticity for sensitive skin with low irritation. Contains 0. 1% retinol which is an optimized amount for beginners who haven't used retinol before. Benefits: Utilize patented technology of Elastic Liposome to deliver active ingredients into the deep skin layer. Gives a non sticky and moisturizing finish. Completed skin irritation testing