Scalp Scrubber Shampoo brush: Just scrub the scalp gently when washing/shampooing your hair. Scalp scrubbers are great for dreadlocks and all types of hair. Stimulating blood circulation and promoting healthy hair growth. These provide the same benefits of a massage, but using the brush while shampooing can also can help your hair grow and remove dandruff in your hair and on your scalp. These scalp scrubbers are great for exfoliating the scalp and massaging at the same time.