About Scalp Revival Charcoal + Biotin Dry Shampoo This unique, scalp-healthy dry shampoo infuses Binchotan charcoal to draw impurities from the scalp and detoxify the scalp and hair. A complex of clay and tapioca & rice starches absorb excess oil at the roots to refresh, clean, and extend the life of your blowout. Witch Hazel extract helps to normalize oil production to prevent an oily scalp, making this dry shampoo a solution-oriented product as opposed to just a temporary fix.