Arturo Alba Transformative Night Formula Pure Retinol 1%, Pack 2 x 30mlArturo Alba Transformative Night Cream with 1% Pure Retinol 30ml is a silky night cream with 1% pure retinol and active ingredients that promote the skins barrier function and the synthesis of ceramides within the epidermis. This 1% retinol is twice the concentration of 0.5%. It also contains highly effective soothing and moisturizing agents. This formula is ideal for skin that is very accustomed to retinoids and has experience using lower concentrations of retinol. Instructions for use Apply a pea-sized amount to very dry skin after your usual nighttime cleansing.