The activator is a 540 titanium alloy micro-needle hand-held device used to increase the absorption of topical applicators for better nutrition. Using the activator with topicals and oils can help them absorb properly. It creates tiny holes when rolled over the scalp or hairline. It works effectively on all your body parts like beard, chest, eyebrows, hairlines and more! The activator roller opens the scalp follicles and boosts circulation, allowing oil to work more effectively, allowing oil to seep faster. The activator is used to increase the absorption of topical applicators such as hair oil and serum for better nutrition. Hair tonic prevents hair loss. See results immediately within a month, go out again with confidence! FOLIGAIN Men HairRegrowth EssenceSpray with Roller!