Descriptions: Hair Regrowth Micro-needling Roller is designed for professional home use on hair loss control & regrowth by triggering body’s wound healing response.which stimulates protein production for new hair follicle rejuvenation.Formulated with high-grade 540 Grade A Titanium, our rollers create thousands of minuscule contact points to stimulate endothelial growth factor.Productionfor follicle and hair growth.Specifications:Material: Grade A TitaniumLength: 0.5mmColor:  Pink  Silver  GoldUsage: Step 1 : Sterilize roller in alcohol solution before and after each use;Step 2 : Wash and dry hair;Step 3 : Apply pressure. Roll back and forth in desired area for 4 - 5 times. Switch direction;Step 4 : Apply scalp serum after use if necessary;Step 5 : Use 1-2 times a week.Do not use:On open wounds.On acne or irritated skin.Do not share it ( strictly avoided).Replace your derma roller after 20 uses to avoid blunt needles.Don’t be harsh to your scalp or skin, in order to avoid injuries.Features: Features:Reactivates scalp’s natural regeneration process;Stimulates protein production & cell growth responsible for new hair growth;Increases scalp circulation & nutrients to follicles;540 Grade A Titanium;Anti bacteria & infection;Safe & painless;