... EGF essence and Fiber-stimulating hormone, etc. As the micro-needle roller small, so the skin will heal quickly, post-operative ... microporous)3. Microneedle roller significant efficacy, safe, reliable, simple. No side effects 4. The use of micro-needles after treatment care ... product in the market.By rolling the microneedle roller on the skin, micro punctures and channels are created. may remove the ...