iHerb Customer Reviews
Less zing, which is good
Posted by Reviewer2805687 on Feb 23, 2011
I had been using a product with full caffeine which was great during the day, but made me a bit zingy in the evenings. This is great if the caffeine has a negative impact on your sleep.
Posted by Reviewer2412157 on Mar 18, 2011
I like concentrated extract as it gives me convenient one-a-day dosage.
Posted by Reviewer1878573 on May 11, 2011
Great product! Great price!!
Posted by Reviewer1017625 on May 22, 2011
iHerb sounds much better in delivery and price.
Posted by Reviewer2963268 on Jun 01, 2011
Higher potency means only one capsule a day for most.