锯棕榈防脱发，国外的客观评论。

发之家

最近正在关注这个东西，厂家介绍的很好，但也有副作用。（厂家的语言，我们要仔细思考，里面说不定水分大）以下是一个中性的评论：
Much of saw palmetto's popularity as a remedy for hair loss and baldness, however, is based on how it's believed to work rather than on evidence that it actually does. Although there have been some lab studies showing that saw palmetto can inhibit 5-alpha-reductase, there are no well-designed clinical studies showing that saw palmetto can cause hair growth, or stop hair loss or baldness from progressing. One of the only published trials on saw palmetto for baldness is a small study involving 10 men with mild to moderate male pattern baldness. Although promising, the study was too small to provide meaningful evidence.

锯棕榈对脱发有一定作用，然而它是基于理论的基础上而没有足够的实践证据来支持这一点。有的实验室证明它能够抑制5-alpha-reductase，但是没有临床试验证明它能够使头发生长。唯一的临床试验，只是涉及到10人轻中度脱发者。

本人大体翻译

ankang

学习了，顶～

树叶飘黄

没上过几天学，看不懂英文