What is sons derma roller sons derma roller is a micro needling device used to help stimulate collagen in the skin and hair follicles to assist with skincare and boost hair growth. Each roller has 540 microneedles that are 0.25mm long the derma roller uses 540 microneedles to make multiple microincisions in the scalp and skin, increasing blood flow and oxygen in the affected area. This stimulates active hair follicles and reawakens dormant ones, boosting hair growth what are the key features utilises 540 microneedles 0.25mm long to create microincisions, stimulating collagen production in the skin and hair follicles for enhanced skincare and hair growth. Increases blood flow and oxygen supply to the scalp, which helps activate hair follicles and promotes the growth of healthy hair effectively stimulates both active and dormant hair follicles, contributing to overall hair growth and revitalisation. Ingredients what are the ingredients n a ingredients usage how to use sons derma roller disinfect the derma roller and wash the targeted skin area before use. Gently roll the derma roller vertically and horizontally across the targeted area 10 14 times. Only use 2 3 times per week usage warnings precautions to consider before using sons dermaroller dermarollers are intended for personal use. Only use the dermaroller as instructed. Do not use if you have sensitive skin, open wounds or severe skin conditions without first consulting with a dermatologist keep out of reach of children. Warnings