BENEV GF Complex serums are based on the latest biotechnological research on growth factors. Growth factors are natural proteins abundant in young skin that are important for healthy skin cell function. They are involved in cell generation, collagen production, and elastin production. As skin ages, it produces fewer growth factors. BENEV Growth Factor Complex serums all contain epidermal growth factor and/or fibroblast growth factor to help enhance the skin's ability to heal visible signs of chronological and sun-induced aging. GF Complex is for use with any device designed to enhance transdermal delivery of active ingredients: electroporation, iontophoresis, sonophoresis (ultrasound), photomechanical waves, and dermal roller. May be applied as an enhancement to procedures such as laser, microdermabrasion, dermaplaning, chemical peels, etc. May also be used as a serum under any BENEV mask treatment.