This form of laser treatment also has a faster recovery time. A 2017 review suggests that non-ablative fractional lasers may be more favorable for people with Fitzpatrick type 4 to 6 skin.

Participants received four sessions of fractional CO2 laser treatment every 4-6 weeks. Follow-up visits ... particularly across Fitzpatrick skin types III and IV, with reductions in pigmentation ...

Fractional carbon dioxide laser treatments are effective at reducing postsurgical scarring, particularly in the first month after surgery.

Laser treatment for acne scars minimizes the appearance and associated pain. However, the treatment isn’t ideal for everyone.