derma pen dr pen m7 auto microneedle system for anti aging within 2pcs 12pin

a device for puncturing skin-penetrating cosmetics supports with a micro-needle guided between extended and retracted positions. apparatus for applying a micro-needle therapy by vibration. if you need more needle cartridges to replace. please check our store or contact us to buy 1.do not force the roller into the skin but simply use mild pressure. 2.roller obliquely at the same intensity covering the same areas vertically and horizontally. 3.apply protocols according to clients"s needs..syi