Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,640 questions · 2,709 findings · 446 reviews

No studies found 593 · 21.9%GRADE not reported 241 · 8.9%Very low 538 · 19.9%Low 706 · 26.1%Moderate 516 · 19%High 115 · 4.2%

Benzoyl peroxide vs salicylic acid

Participant's global self‐assessment of improvement (long‐term data) ‐ not measured · participants with acne

The review found no eligible studies for this question.

1 finding from 1 review

Benzoyl peroxide vs placebo or no treatment

Adverse effects (side effects; treatment withdrawals) · participants with acne

Benzoyl peroxide may leads to higher withdrawal due to adverse effects (long‐term data) Treatment… compared with placebo or no treatment (low certainty).

1 finding from 1 review

Benzoyl peroxide vs placebo or no treatment

Total number of participants with any adverse events (long‐term data) Treatment duration: range 10 weeks to 12 weeks · participants with acne

It is very uncertain whether benzoyl peroxide changes total number of participants with any adverse events (long‐term… compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Benzoyl peroxide vs adapalene

Participant's global self‐assessment of improvement (long‐term data) · participants with acne

Benzoyl peroxide showed no clear difference in participant's global self‐assessment of improvement (long‐term data) compared with adapalene (low certainty).

1 finding from 1 review

Benzoyl peroxide vs adapalene

Withdrawals due to adverse outcomes · participants with acne

It is very uncertain whether benzoyl peroxide changes withdrawal due to adverse effects (long‐term data) Treatment… compared with adapalene (very low certainty).

1 finding from 1 review

Benzoyl peroxide vs adapalene

Adverse event data · participants with acne

It is very uncertain whether benzoyl peroxide changes total number of participants with any adverse events (long‐term… compared with adapalene (very low certainty).

1 finding from 1 review

Benzoyl peroxide vs clindamycin

Participant's global self‐assessment of improvement (long‐term data) · participants with acne

Benzoyl peroxide showed no clear difference in participant's global self‐assessment of improvement (long‐term data) compared with clindamycin (low certainty).

1 finding from 1 review

Benzoyl peroxide vs clindamycin

Adverse effects (side effects; treatment withdrawals) · participants with acne

It is very uncertain whether benzoyl peroxide changes withdrawal due to adverse effects (long‐term data) Treatment… compared with clindamycin (very low certainty).

1 finding from 1 review

Benzoyl peroxide vs clindamycin

Total number of participants with any adverse events (long‐term data) Treatment duration: range 10 weeks to 12 weeks · participants with acne

Benzoyl peroxide showed no clear difference in total number of participants with any adverse events (long‐term… compared with clindamycin (moderate certainty).

1 finding from 1 review

Azelaic acid vs adapalene

Participants' global self‐assessment of acne improvement · participants with acne

It is very uncertain whether azelaic acid changes participants' global self‐assessment of acne improvement Improved to… compared with adapalene (very low certainty).

1 finding from 1 review

Azelaic acid vs tretinoin

Participants' global self‐assessment of acne improvement Good to excellent improvement (long term: treatment duration > 8 weeks) · participants with acne

Azelaic acid showed no clear difference in participants' global self‐assessment of acne improvement Good to… compared with tretinoin (moderate certainty).

1 finding from 1 review

Salicylic acid vs tretinoin

Participants' global self‐assessment of acne improvement Moderate to excellent improvement (long term: treatment duration > 8 weeks) · participants with acne

Salicylic acid showed no clear difference in participants' global self‐assessment of acne improvement Moderate to… compared with tretinoin (low certainty).

1 finding from 1 review