Not surprisingly .... I had a close look at Nioxin ingredients.
Its basically revivogen and ... Niacin ... diluted.
They put some growth stimulants that will stimulate short term hair growth but can't stand the test of time (1 to 4 years) like rogaine.
Thats why some people report results. If you agitate hair enough, it will stimulate growth. It just wont last very long.
And secondly ... they have ... yep .... the Revivogen Fatty acids. Although im willing to bet they're not in the "free" form like they need to be ... and more importantly ... they've only got one of the 2 that Revivogen has.
Still... Revivogen beats others out in the bang for the buck category.
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