1Red LED Light: LED colored light lights scalp, cares for hair follicles, enhances hair follicle vitality, promotes blood supply and nutrition supply to hair follicles. 2Negative Ion: For repairing hair, promoting scalp metabolism, has better antioxidant, enhance hair moisture, restore hair shine, prevent splitting problems. 3Microcurrent Design: Through scalp to the dermis, stimulate and massage scalp and subcutaneous muscles, drives muscle to move, 5 gears adjustment to meet different needs. 4Promote Serum Absorption: With 12ml detachable water tank, can be used as a scalp applicator to effectively inject serum into hair follicles through high frequency physical vibration, promoting absorption. 5For Hair Regrowth: Push type comb teeth, allow growth serum to reach deep into hair and massage the scalp to relieve tension, assist repair scalp activity, build a healthy environment for hair growth.