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Does Vinpocetine improve concentration?

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JNathanK
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Joined: 28 Oct 2010
Age:28
Posts: 1,120

04 Aug 2011, 12:08 pm

I've been reading up on it, its a derivative of the common perwinkle. and its supposed to be more effective at expanding blood vessels in the brain than Ginkgo Biloba . Has anyone tried it? Does it work good?