This is an effective (pH 3.5) restorative and rectifying treatment with a high content of glycolic acid, sodium glycolate (15%) and Retinyl Palmitate. It is recommended for all types of non-sensitive skin beginning to show signs of aging. Apply to the face once to twice daily. Because excessive drying of the skin may occur, start with one application daily, then gradually increase to two times daily if needed. Repeated use helps to reduce the appearance of fine lines and improve skin tone and texture.