Bio Roller G4 is great for helping brighten the appearance of dull-looking skin for overall facial rejuvenation. This can not only be used as a face roller, but also as a scalp or beard roller to help stimulate hair and beard growth. Perfect regard as beard roller for men beard growth and for women facial roller, Our Bio Roller G4 can not only be used as a face roller, but also as a scalp or beard roller to help stimulate hair and beard growth. Perfect regard as beard roller for men beard growth and for women facial. Home Feature: Beard Growth, Hair Regrowth, Skin Tightening, Skin Rejuvenation Target Area: Hands, Body, Feet, Head