Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

9 questions · 9 findings · 1 reviews · Skin

No studies found 5 · 55.6%GRADE not reported 0 · 0%Very low 3 · 33.3%Low 1 · 11.1%Moderate 0 · 0%High 0 · 0%

Chemical peeling vs combined chemical peeling plus any active intervention

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

It is very uncertain whether chemical peeling changes participant‐assessed adverse events (short‐term) N of participants… compared with combined chemical peeling plus any active intervention (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

Chemical peeling vs needling

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

Chemical peeling showed no clear difference in investigator‐assessed adverse events (short‐term) N of participants… compared with needling (low certainty).

1 finding from 1 review

Chemical peeling vs needling

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

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

1 finding from 1 review