Serum and Night Scrub combine two powerful formulas to provide multiple anti-aging benefits: It contains the powerful AHA (alpha-hydroxy-acid) Complex Glycine Saponin. These acids, many of which are known as "fruit acids", exfoliate the skin. The clear gel combines concentrated high and low molecular Hyaluronic Acid. Hyaluronic Acid with a high molecular weight smoothes the outer layers of the epidermis, while Hyaluronic Acid with a low molecular weight (40 times smaller) penetrates the layers of the skin where deeper wrinkles are created.