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Evidence found and GRADE certainty

1,078 questions · 1,098 findings · 33 reviews · Skin

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No studies found 396 · 36.1%GRADE not reported 89 · 8.1%Very low 181 · 16.5%Low 183 · 16.7%Moderate 196 · 17.9%High 53 · 4.8%

Fractional laser vs radiofrequency

Participant‐assessed adverse events (short‐term) · people with acne scars

The review found no eligible studies for this question.

1 finding from 1 review

Fractional laser vs combined chemical peeling plus needling

Participant‐reported scar improvement (long‐term) · people with acne scars

It is very uncertain whether fractional laser changes participant‐reported scar improvement (long‐term) N of participants… compared with combined chemical peeling plus needling (very low certainty).

1 finding from 1 review

Fractional laser vs combined chemical peeling plus needling

Participant‐assessed adverse events (short‐term) N of participants with adverse events · people with acne scars

It is very uncertain whether fractional laser changes participant‐assessed adverse events (short‐term) N of participants… compared with combined chemical peeling plus needling (very low certainty).

1 finding from 1 review

Fractional laser vs non‐fractional non‐ablative laser

Participant‐reported scar improvement (short‐term) N of participants with > 50% improvement in acne scars · people with acne scars

It is very uncertain whether fractional laser changes participant‐reported scar improvement (short‐term) N of participants… compared with non‐fractional non‐ablative laser (very low certainty).

1 finding from 1 review