OBJECTIVE: To discuss the current knowledge of polyphenolic compounds present in green tea as anti-inflammatory, antioxidant, and anticarcinogenic in skin. DATA SOURCES: References identified from bibliographies of pertinent articles, including our work in related fields. STUDY SELECTION AND DATA EXTRACTION: Articles were selected based on the use of green tea or its polyphenolic constituents for prevention against inflammation and cancer in the skin. Also discussed is the possible use of green tea to treat various inflammatory dermatoses. DATA SYNTHESIS: The polyphenolic compounds from green tea were tested against chemical carcinogenesis and photocarcinogenesis in murine skin. These green tea polyphenols were found to afford protection against chemical carcinogenesis as well as photocarcinogenesis in mouse skin. A few experimental studies were conducted in human skin in our laboratory. Analysis of published studies demonstrates that green tea polyphenols have anti-inflammatory and anticarcinogenic properties. These effects appear to correlate with antioxidant properties of green tea polyphenols. CONCLUSIONS: The outcome of the several experimental studies suggests that green tea possess anti-inflammatory and anticarcinogenic potential, which can be exploited against a variety of skin disorders. Although more clinical studies are needed, supplementation of skin care products with green tea may have a profound impact on various skin disorders in the years to come. Arch Dermatol. 2000;136:989-994
Authored by Katiyar SK, Ahmad N, Mukhtar H. Department of Dermatology, Case Western Reserve University, Cleveland, OH 44106, USA.
Published in Arch Dermatol. 2000 Aug;136(8):989-94. Comment in: Arch Dermatol. 2000 Aug;136(8):1051. Arch Dermatol. 2001 May;137(5):664. The full report is available online. A subscription to the periodical may be required.
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