Our Men's Bamboo Charcoal Black Hair Soap Contains Sodium Palmitate and Glycerin. It Can Improve the Scalp Environment and Keep the Scalp Fresh. Its Use Method Is Very Simple: Wet Your Hair Or Beard, Gently Rub the Product a Few Times, Then Evenly Apply It on the Hair Or Beard, Comb and Massage with Fingers, finally, Wash It with Clean Water. And It Can Strengthen the Hair Root, Which Helps to Improve the Hair Quality.