The Brookstone microneedling derma roller has 540 micro needles for collagen stimulation and skin rejuvenation therapy. This perfect collagen stimulator helps to minimize your wrinkles, pores and fine lines to help achieve a glowing looking complexion in only minutes. Increase the absorption and penetration of your skincare. it can also be used on your scalp to help stimulate and maintain hair in any thinning areas. Country of Origin: Imported