Our pet oral care kit contains ethanol and glycerin. It can be gently formulated and will effectively clean their jaw area without causing any adverse reactions. It can target stubborn blackheads, leaving your pet's chin area cleaner and skin healthier. The way to apply it is simple: Before applying, make sure your pet's skin is free of wounds or inflammation, and press the pump head 2-3 pumps gel on the brush head. Gently brush the impurities, blackheads, etc. on the pet chin, and finally wipe it clean. And you can choose and use them according to your cleaning needs.