Like other microneedling treatments, the MediRaf uses sterile microneedles to create many microscopic channels deep into the dermis of the skin to stimulate collagen production. New collagen can smooth the texture of stretch marks and reduce the appearance by improving the color. Where MediRaf stands out is in the application of radiofrequency energy (RF) at deeper, highly precise depths which adds to the tightening and toning effect. Lastly, the MediRaf is virtually pain-free and features red LED light therapy to increase collagen and further strengthen skin.