iHerb Customer Reviews
Savings of: $12.00 (40% off)
Helps me sleep, its my nightly ritual
Posted by 4849979974360943525 on Aug 22, 2015
I've been taking z-core for a year now and its made a big difference to my sleeping pattern without relying on it to sleep. I much prefer it to a regular zma product
Not Working For Me
Posted by 5208295130316755586 on Jul 01, 2014
Been taking this for over 2 weeks now. I didn't feel any different and my sleep did not improve at all even with 6mg of melatonin. Testo booster doesn't work either. Instead, take Muscle Pharm Amino 1 for better recovery results.
Posted by 5116882076057352289 on Jan 03, 2017
Excellent product. I see the effect very quick
Posted by 5691313993819772904 on Feb 20, 2016
This is an amazing product! Guaranteed deep sleep. Brilliant when doing heavy training to help the body rest and recover.
Great way to end the day
Posted by 5688776491246638792 on May 11, 2014
Good product with multiple benefits
Does what it says :)
Posted by 5102815006791168256 on Jun 11, 2014
I was shopping around for a testosterone product suitable for female consumption and z-core did not disappoint! Sidenote: I do have hypothyroidism but so far no side effects, also i did notice faster muscle definitions and yes I do sleep a little better. Might not work for everyone but it sure does work for me.
Posted by 5439449104604794678 on Oct 17, 2016
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