Advanced breakthrough patent pending ptr firma cell 4 technology is a complex of four different molecular active peptides including argireliner hexapeptide, syn coll, pentapeptide 3 and oligopeptide that all act to help reduce the severity of deep wrinkles and fine lines for younger looking skin'. '.strtoupper('f')irma cell 4 penetrates to different epidermal layers to help boost collagen and elastin synthesis and goes beyond retinol to help firm, smooth, lift and clarify the skin'. '.strtoupper('t')he combined anti aging benefits of firma cell 4, glycolic acid, vitamins a, c ascorbate c and e make this a truly revolutionary treatment.the appearance of new fine lines is visibly reduced.production of skins collagen and elastin is boosted.dries with a matte finish for normal to oily skin types.