To Use: Can be used AM and/or PM. For best results, apply to cleansed and toned skin. With your fingertips, apply a thin layer of serum over face and neck, or where firming is desired. Allow to penetrate. Can be layered over other serums or under creams. De-Age may be used as a booster treatment under masks for additional firming and deep hydration. Apply a drop to forehead, chin and cheeks, massage in gently, then apply mask.