Posted by Reviewer1969637 on Dec 01, 2009 | Verified Purchase
I've been buying the Siberian Sport for 7 months now, and I've been very pleased with it. It gives any energy boost without feeling jittery.
Posted by Reviewer2450542 on Jun 25, 2012 | Verified Purchase
Good support levels of energy but only at high dosage (4 or more capsules)
Posted by 5053577076037285284 on Aug 05, 2013 | Verified Purchase
possibly the best....
Posted by Reviewer1315766 on Oct 13, 2010 | Verified Purchase
siberian at iherb
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