| Physicians' global evaluation of acne improvement (numerical point system defined by investigator, high = well) | |||||
| Study | Sulfur‐benzoyl peroxide | Benzoyl peroxide | Sulfur | Placebo | P value |
| medium term | |||||
| Vasarinsh 1969 | 1.53 | 1.07 | 0.50 | 0.94 | not report, the author did not state whether the difference is statistical significant. |
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