Resist early aging and master the age code. Red light + yellow light promote collagen activity and master the age code.Stage ① enter the deep muscle bottom to activate skin cells,Stage ② promote collagen production and accelerate toxin excretion,Stage ③ strengthen skin elasticity and repair fibrous tissue.Dual mode customized face spa dual care mode fade fine lines and tighten skin.Product model gp520 product name micro current beauty instrument service frequency 10 times / cycle 3-4 days / time gear 1-3.