Work theory:
Microneedle roller contains 540 tatianium tiny needles, can be used on any part of your skin.Its application principle is by way of the stimulation the dermis layer of collagen and fibroblast proliferation, because of microneedle stimulation, may remove the wrinkle and the improvement skin texture.

Usage:
1.Clean your face in common way.
2.disinfection of micro-needles with alcohol.
3.After about 15minutes, put micro-needles end on your face and make it roll on your face.
4.DO NOT use it in heavy press into the skin,in mild pressure!
5.have a wash to the derma roller after use,store in dry&clean place.
6.it can be used for a longer time if you keep it well.

Parameter:
-9 disks x 60needles (540 needles in total)
-roller color:purple / red for choice
-Needle material: Medical Purpose Stainless Steel(safe and durable)
-Body Material: PC material, black color
-Special a method of construction by lock-up
-50% improvement of needle's strength than a normal material