1/3/5/7/9/12/36/42/nano pins replacement needle cartridges tips for derma pen mym microneedle roller electric anti acne

advantage: 1.wrinkle removal,skin tighten,scar removal,skin rejuvenation 2.the needle cartridges be replacement 3.the needle length be adjust from 0.25 to 2.5mm 4.the treatment spped be adjust from slow to fast may help 1.stimulate collagen fiber growth, 2.improve micro-circulation , 3.enhance skin care product`s activity substances into deeper skin layers, 4.treatment for hair loss,thin hair 5.improve scars caused by acne/chicken pox/trauma 6.stretch mark removal and stretch mark treatment 7. be used not only for special medical care but also at home. and