Green tea is a popular worldwide beverage, and its potential beneficial effects such as anti-cancer and anti-oxidant
properties are believed to be mediated by epigallocatechin-3-gallate (EGCG), a major constituent of polyphenols.
Recently, it was reported that EGCG might be useful in the prevention or treatment of androgenetic alopecia by
selectively inhibiting 5a-reductase activity. However, no report has been issued to date on the effect of EGCG on
human hair growth.