How does Rf fractional micro needle work?

Fractional RF Needle System through the special design of many fractional needles point array, the high speed digital motor controls order through the epidermis and the dermis accurate to control the depth of 0.25-3mm, again by the end of the lattice needle release RF, stimulate collagen and elastic tissue, and is the epidermal layer is safe, RF energy can well to penetrate to the dermis, stimulate collagen protein hyperplasia, not only is the best way to improve the scars, but also long-term tightening skin wrinkles induced the good method.