Name: Roller Product Features: High-quality micro roller needles, made of environmentally friendly materials, harmless to the human body. Reduce common signs of aging, such as wrinkles, facial sagging, etc. Promote blood circulation, make the skin firm and elastic. Can be used all over the body. How to use? Microneedle therapy uses a kneading stick inlaid with 540 slender steel needles, which rolls regularly on the area that needs treatment. Within five minutes, it can pierce more than 250,000 capillaries on the epidermis, forming an efficient nutrient delivery system in the epidermis and subcutaneous tissue, so that the active ingredients can effectively enter the skin. So that skin care, skin care, skin care, and skin beauty become perfect. 0.25mm is suitable for beauty applications 0.5mm/1.0mm application range-daily care and maintenance, whitening and freckle removal, repair, red blood, new acne marks 1.5mm/2mm application range------acne marks, acne scars, stretch marks, acne marks.