13.10. Analysis.

Comparison 13: Topical alpha‐hydroxy acid versus other topical treatments, Outcome 10: Physicians' global evaluation of acne improvement (%)

Physicians' global evaluation of acne improvement (%)
Study	Time points	Alpha‐hydroxy acid, %	Comparator, %	P value
split‐face trials
Kessler 2008	Good to fair improvement (treatment duration of 10 weeks, measured at two months post‐treatment)	30% glycolic acid peels, 75%	30% salicylic acid peels, 81%	Unclear, not reported. The author did not report whether there is any statistical difference between groups.