Micro needling decreases hair loss by releasing endothelial growth factor that can promote hair growth increases follicle size and promote thicker hair. Microneedling or dermarolling is a cosmetic procedure contain thousands of tiny little needles are inserted into the surface of your Hair, face, beard and skin. Dermarolling are used to tackle a wide range of skin and hair problems including hair loss, skin, acne scarring, and reduce signs of aging.