Concerning this item Unambiguous Scale Clear scales on the scalp applicator comb range from 1 to 3 milliliters, ensuring accurate liquid dispensing and preventing liquid waste or overdosage issues. Using a Suction Cup The bottom of the comb has a suction cup design that prevents liquid leaks and saves space by enabling the comb to be easily used on a desktop. Equitable Allocation By distributing the liquid evenly across the scalp and preventing excessively high or low local concentration, the rolling ball enhances the effectiveness of the care. Scalp Massager: The comb's five rolling balls can massage the scalp, increase blood flow, hasten the absorption of medications, and enhance their effects. Release Tension The comb is able to