Here, we’ve tapped the expertise of trichologist and scalp therapist Bridgette Hill and board-certified dermatologist Dr. Dhaval G. Bhanusali to help you keep your scalp moisturized, comfortable, and flake free — all without the risk of greasy-looking strands. Bridgette Hill is a trichologist and scalp therapist based in West Palm Beach, Florida. Dr. Dhaval G. Bhanusali is a board-certified dermatologist based in New York City.