Green Tea can also have the same effect, but you'd have to drink something like 30 cups of it per day, and even then we don't have proof that it will maintain or increase hair count...
This is why the details of clinical data are so important. Something can look like it may work, but what dosage? What are the side effects? How safe is it? How long must you use it at what dosage before you see results? Will there even be results at all? Has anyone recorded results?
These are all questions that are answered by clinical data. And left completely unanswered without it.
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