hydra roller 64 pins titanium microneedle derma roller stamp with gel tube 10ml skin roller needle ce 0.25mm 0.5mm 1.0mm

hydraroller is to stimulate collagen production and to increase the absorption ofskincare products. but traditional derma roller it's not easy to operation,as you have to use another hand or one assistant to help you get essence liquidon face. this new hydra roller with bottle successful combinemicro needle with essence liquid and import it automatically. do not needassistant, do not need go to clinic to do hydra roller treatment, you can do it at home from now on