: This hair oil applicator allows serums, nutrients, conditioners and oils to reach the scalp directly. It accurately delivers serums to the roots, preventing them from sitting on the surface of the hair and keeping hair and hands clean. The scalp applicator should be soft when used to prevent pulling the hair. This comb is not suitable for shampoos and other liquids with high viscosity, and should not flow out of the applicator bottle. : Scalp massage brush made of ABS, silicone and stainless steel to ensure durability and water resistance. Can be used while washing hair. The comb oil bottle is sealed tightly around the edges to prevent spillage or leakage of liquid during use. Please remember to clean the inside after use to prevent the bottom of the comb teeth from crystallising and preventing the liquid from flowing out. : Scalp applicator with built-in 30 ml liquid tank. This hair growth scalp massager has a small capacity and volume, so you won't waste the serum. Simply press the cap to release the liquid at any time. The surface of the scalp bottle applicator is designed with non-slip strips for easy grip. Easy to carry and use at any time, especially when travelling or on business trips. : This scalp massaging comb elasticity The ball-rowed, curved comb design with 12 elasticated ball teeth and 7 auxiliary comb teeth provides a perfect fit on the scalp and improves blood circulation. The oil applicator has a precise liquid-guiding function that eliminates the need for manual application. It effortlessly delivers hair care products to the roots. Simply roll the comb back and forth across the scalp and press the soft cap design to accelerate liquid flow and promote absorption. - : The filling port of the hair oil comb is 22 mm large for easy cleaning and filing of liquid. It is suitable for both men and women and for all hair types including thick, thin, curly, straight, wet or dry. Wherever you are, this scalp bottle applicator makes it easy to care for your hair and scalp.