I bought one and used it. Very time consuming. Slowed thinning was all, so loaned to a friend - never to get back.
Bought a new one, but life happened and I didn't have the time to use. So still new in box.
My understanding is that it is for male pattern baldness, not alopecia. But, every case is so, so different that it might work a bit. Or, it might not.
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