How can green tea be used to treat baldness
Green tea, also known as "Camellia sinensis", is very popular and consumed daily in Japan and other Asian countries. Asia is naturally the largest producer of green tea and plantations are commonplace. Green tea is simply dried leaves of the tea plant. Black tea is made from dried tea plant leaves that have been through a fermentation process. Green tea is a popular form of treatment for androgenetic alopecia although there have been no published studies to directly demonstrate its effectiveness. As with saw palmetto, the potential for treating pattern baldness is indicated by research into the properties of green tea in treating other ailments.
The key ingredients of green tea are molecules called catechins. Catechins have several properties. Animal model research studies indicate that green tea catechins have a variety of actions. Rats that were given green tea derived epicatechins showed vasorelaxation. Arteries that were induced to contract were found to relax again after administration of catechins, so green tea may aid cardiovascular activity. Catechins of green tea are selectively bactericidal. They do not affect lactic acid bacteria but will reduce the proliferation of other bacteria types particularly those that use alpha-amylase activity in their growth and cell division. Green tea also contains antioxidants and may even help lower cholesterol. Of greatest interest to the research community green tea apparently has a protective effect against a range of cancers. Green tea has been statistically shown to reduce the frequency of smoke-induced mutations. It has also been particularly useful in protection from stomach and colon cancer.
Of greatest interest to those with androgenetic alopecia is evidence that green tea can influence serum concentrations of hormones. Research in this area is primarily with reference to hormonal effects on the development of cancer and how green tea and other caffeine containing products might mediate changes in hormone levels. For example, high intake of green tea has been associated with higher levels of sex hormone binding globulin (SHBG) and lowered levels of serum estradiol (estrogen) concentration in women. Increased SHBG may be of help in reducing the effects of androgenetic alopecia. SHBG is a molecule that binds with high affinity to testosterone. Testosterone bound to SHBG is not bioactive and cannot bind to androgen receptors or be converted into dihydrotestosterone. An increase in SHBG concentration effectively reduces free testosterone.
Green tea may affect testosterone levels and may also have an affect on the type I 5 alpha reductase enzyme that converts testosterone to dihydrotestosterone. These distinct, but complementary, effects of green tea may influence androgenetic alopecia.
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