That really depends on what sort of lasers/skin treatments you are doing. Ablative lasers, deep chemical peels or skin devices like fractional RF breach the skin layer and pose a risk for keloid formation.
This is why I personally have both ablative and non-ablative fractional lasers for scar/rejuvenation/wrinkle treatments.
If you are only using non-ablative lasers or laser toning, there is negligible risk.
In fact, some non-ablative lasers like the pulsed-dye or long pulsed ND:Yag lasers can be useful for treating keloids!
