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iHerb Customer Reviews

$22.99

$40.99

Savings of: $18.00 (44% off)

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good

Posted by 5412676300250015323 on Dec 19, 2013

good supplement

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rest easy with Optimum ZMA

Posted by 4916062616576775572 on Nov 20, 2014

Although i couldn't see any discernible difference between this formulation and the one provided by GNC. Optimum wins on providing better value in terms of cost per serving. I get a real good night's rest without waking up mid sleep the way I used to. On the recommended dose, I wake up fully rested.

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zma

Posted by 5539318831667043996 on Dec 26, 2016

hey my shipment nor erav to me whay?

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