Dr. Miracle's Tingling 2 in 1 Dandruff Shampoo & Conditioner will begin to cleanse the hair from the bacteria and dead skin cells that can clog the hair follicles and create irritating and embarrassing dandruff problems. The tingling ????????????????????feel it?????????????????? formula stimulates the scalp, bringing blood flow and oxygen to the hair follicle stimulating the growth of the hair.