This electric head massager features three unique grab-and-knead modes, equipped with 8 micro-current teeth and three adjustable intensity levels. It stimulates the scalp through kneading motions, strengthening hair roots to stabilize hair density. The scalp relax massager boasts 72 rounded comb teeth that deeply knead the scalp for thicker, fuller hair. Combined with 660nm red LED therapy, it activates follicles, boosts absorption of hair serums, and balances scalp oil production — effectively combating hair loss.