Scalp Massage Comb Hair Growth InstrumentProduct Benefits: Stimulate hair growth and improve scalp health with our Scalp Massage Comb Hair Growth Instrument. The IPX7 waterproof design of the Scalp enables hair washing with massage in the shower 850 nm red and blue light waves can directly reach the root of hair follicles, regulate the scalp's water and oil balance, and improve the scalp environment. Reduce stress and promote relaxation with soothing scalp massages. Minimize dandruff and