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It seems that the potential uses for green tea to promote health continue to expand as new studies demonstrate its ability to prevent disease. Recently several studies have shown that green tea may be effective in reversing hair loss or balding. If this is indeed true, this could be a safe, non-toxic way to treat a condition that affects millions of men and women nationwide. Is there an association between green tea and hair loss?

The idea that green tea might play a role in hair loss stems from the fact that it’s a rich source of polyphenols, particularly epigallocatechin-3-gallate or EGCG. It is EGCG that appears to have the potential to reverse hair loss. The way EGCG probably exerts its hair loss effect is by preventing action of an enzyme known as 5 alpha reductase. This enzyme is responsible for converting testosterone in the body to dihydroxytestosterone or DHT. When this occurs, it shortens the life of the hair follicle resulting in premature hair loss. When EGCG acts to inhibit this particular enzyme, conversion to DHT doesn’t occur which means there is less hair loss. According to this mechanism, green tea and hair loss may be intimately related.

Does this effect hold true in actual clinical trials? Two studies have been published recently relating to green tea and hair loss. One, published in the journal Phytomedicine in 2007 showed that the EGCG found in green tea promoted hair growth in cell culture. Another study published in the Journal of the National Medical Association in 2005 demonstrated that the polyphenols in green tea promoted hair regrowth in thirty-three percent of the mice who receive it in their drinking water. As of yet, no trials in humans have been published.

While conclusions regarding green tea and hair loss can’t be reached based on such limited study, it certainly suggests further research may be warranted. Green tea is certainly a safe drink with most of the potential side effects rising from the caffeine and tannins present in the leaves which can lead to nervousness, jitteriness, headache, and

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Written by: Dr. Kristie
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