Scandinavian Biolabs Scalp Activation RollerScandinavian Biolabs Activating Scalp Roller is a roller fitted with fine needles, which massages the scalp. 540 titanium needles stimulate the skin during the massage, help to absorb cosmetic products more efficiently and promote hair growth. You can also use the roller to massage dry skin without any preparation. Main features: 540 titanium needles stimulates the scalp for all hair types Use Slowly roll the roller over your scalp, first