Best Laser for Flat, White Hypopigmented Scars from Glass Shattering on Lower & Upper Thigh on Olive Skin?

There have been reports that fractional non-ablative laser, such as Fraxel Restore, can induce repigmentation in some scars. I have not been able to produce good results though, in some of my patients in whom we've attempted this. I avoid ablative lasers, fractional or non-fractional on the body as there is a higher risk of scarring.  There is an excimer laser but i am concerned of risk of skin cancer developing years later from this device.

Most scars respond to repeated gentle erbium-yag fractional resurfacing with a laser such as the Pixel.

It is important to design a treatment that is unlikely to hurt your existing pigment.

It is also important to discuss realistically what your expectations are from the procedure.

Fully ablative CO2 laser would likely be a mistake.

Hypopigmented scars are felt by some to be caused by a thin sheet of scar tissue that sits like a plate in the upper levels of the skin.  As a result the cells that make color (melanocytes) have a hard time getting back to the area to color the skin like before the trauma.  By poking microscopic holes in it with a fractionated laser, some also feel that the cells can migrate back in and being to repopulate the area.  Recently, at one of the scientific meetings, someone demonstrated the use of fractionated lasers with the eyelash growing medication Latisse.  One of the side effects of Latisse is that it can color the skin.  This is not a big deal on the eyelid margin because most women use mascara so the effect is welcome.  The physician who presented the study demonstrated the improvement of hypopigmented scars with this combination.  You may want to talk to a local laser expert about this approach.

Good luck.