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iHerb Customer Reviews



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Posted by Reviewer2352505 on May 07, 2008

cheap product, gluconate vs. citrate, doesn't absorb well. Waste of money.Their Vit E product contains soy. Twinlabs has a reputation for quality products but they seem to be bottom-lining their products with cheap ingredients.

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TOO MUCH ZINC! Do not take

Posted by 5536595171908109527 on Feb 21, 2015

I use these in my cosmetics for sunscreen protection. Otherwise 30mg is just too much zinc for one person. However, taking one tablet once in a while after heavy drinking probably is OK

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