Very confused about the size and frequency of use of Dermaroller for face treatment. Any suggestions?

In my office we have been getting excellent results in the treatment of stretch marks by using medical micro-needling combined with human growth factor serums. We use motorized micro-needling, not the derma roller, for a more even and more effective result. Rollers such as the Dermaroller create...

Sterility is always an issue with these devices, especially after the first time you use it. There are two reasons you will not get the best results from micro-needling if you are using the Dermaroller. First, rollers such as the Dermaroller create a more erratic pattern of "tears" through the...

The best way to treat track marks is to avoid them in the first place. There are reports in the medical literature about track marks appearing after treatment of "bony" areas on the face such as the forehead using longer 2.0 mm needles. However, aggressive home treatments using 1.5 mm needles...