The effects of green tea on acne vulgaris: A systematic review and meta‐analysis of randomized clinical trials

Kim S, Park TH, Kim WI, Park S, Kim JH, Cho MK · Phytotherapy Research · 2020 August 19

Objective

To examine the effects of green tea extract (GTE) on acne by conducting a systematic review and meta-analysis, with a focus on its impact on inflammatory and non-inflammatory lesions, comparing topical and oral administration.

Conclusions

Green tea extract (GTE) significantly reduced the number of inflammatory lesions in acne. Subgroup analysis revealed that topical GTE application was more effective in reducing both inflammatory and non-inflammatory lesions compared to oral intake. The study suggests that topical GTE application is beneficial for acne treatment without significant adverse events, while oral GTE intake has limited effects. However, the authors recommend further high-quality clinical trials for confirmation.

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