Our micro-needling scalp roller aids with thinning hair in women and men. How To Use: Clean and sterilise before and after use. On dry hair, roll over the scalp and hairline in the direction of the hair, using light pressure. For best results, follow with a topical treatment serum. Use for 15 minutes, 3 times a week. Do not use on broken or irritated skin, active skin conditions or sensitive skin areas. Keep away from Children. Sterilise with alcohol before and after use. If needles become damaged or bent, do not use.