Stretch marks are a result of the skin experiencing trauma though stretching too far or too fast. Once the pressure is relieved, it is a challenge to get rid of the looseness, and the appearance of the marks, short of surgically removing the skin.
The Accent will reduce the size and appearance of the marks; however, it is necessary to evaluate the severity of the marks to determine if the accent will truly make a difference. I have gotten great improvement when the accent and fractional resurfacing were used in combination. Fraxel re:store or re:pair works well on stretch marks.
Good luck and be well.