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Evidence found and GRADE certainty

7 questions · 7 findings · 1 reviews · Skin

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No studies found 3 · 42.9%GRADE not reported 0 · 0%Very low 3 · 42.9%Low 0 · 0%Moderate 1 · 14.3%High 0 · 0%

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

Chemical peeling vs needling

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

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

1 finding from 1 review

Injectable fillers vs placebo or no treatment

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

Injectable fillers probably leads to higher participant‐reported scar improvement (short‐term) N of participants… compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Fractional laser vs radiofrequency

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 radiofrequency (very low certainty).

1 finding from 1 review