Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

1,835 questions · 1,886 findings · 74 reviews · Skin

No studies found 542 · 28.7%GRADE not reported 130 · 6.9%Very low 326 · 17.3%Low 434 · 23%Moderate 348 · 18.5%High 106 · 5.6%

Nicotinamide vs erythromycin

Withdrawal for any reason (medium term: treatment duration from 5 to 8 weeks) · participants with acne

Nicotinamide showed no clear difference in withdrawal for any reason (medium term: treatment duration from 5 to… compared with erythromycin (low certainty).

1 finding from 1 review

Glycolic acid (alpha‐hydroxy acid) vs salicylic‐mandelic acid

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

Glycolic acid (alpha‐hydroxy acid) showed no clear difference in participants' global self‐assessment of acne improvement Fair to… compared with salicylic‐mandelic acid (low certainty).

1 finding from 1 review

Glycolic acid (alpha‐hydroxy acid) vs salicylic‐mandelic acid

Minor adverse events · participants with acne

It is very uncertain whether glycolic acid (alpha‐hydroxy acid) changes total number of participants who experienced at least one minor… compared with salicylic‐mandelic acid (very low certainty).

1 finding from 1 review

Azelaic acid vs benzoyl peroxide

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

Azelaic acid probably leads to lower participants' global self‐assessment of acne improvement Good or… compared with benzoyl peroxide (moderate certainty).

1 finding from 1 review

Azelaic acid vs clindamycin

Participants' global self‐assessment of acne improvement Good or very good 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 or… compared with clindamycin (low certainty).

1 finding from 1 review

Intervention not reported

Transepidermal water loss (TEWL) Measured using temperature‐adjusted g/m²/h with the Tewameter TM 300 (Courage + Khazaka, Cologne, Germany) Hahnel 2017: measured at 56 ± 4 days Shishido 2017: measured 15 minutes after wiping the skin with a dry to... · people 60 years of age and older
1 finding from 1 review

Intervention not reported

Stratum corneum hydration (SCH) (at baseline and day 56 ± 4) Hahnel 2017: measured at 56 ± 4 days in mid‐volar arm and lower leg in arbitrary units from 0 (no water) to 120 (on water) using the Corneometer CM 825 Gillis 2016: measured at 12 weeks ... · people 60 years of age and older
1 finding from 1 review