Frequently Asked Questions
As of August 2018, iHerb is using 3rd Party Independent Labs ABC Testing, Eurofins and Alkemist to test product. Using a 3rd Party Independent Lab guarantees that the results are objective and unbiased.
iTested confirms that the information provided on a product Supplement Facts Panel and/or Nutrition Facts Panel is correct. Products are also tested to confirm Clean Label Standards such as a Microbial Analysis and a Heavy Metal Analysis.
The test methods are referenced on each iTested product document.
Products will be tested every 6 months.
Zinc is a trace mineral that plays a role in normal immune function and other everyday processes in the body.
Zinc supplements are available in several forms, including zinc picolinate, citrate, glycinate, oxide and sulfate. Product labels identify the specific form used.
Zinc picolinate is bound to picolinic acid, while zinc glycinate is bound to the amino acid glycine. Product labels identify the specific form used.
Chelated forms of zinc, such as picolinate, citrate and glycinate, are bound to an organic carrier, while non-chelated forms such as zinc oxide and zinc sulfate are not. Product labels identify the specific form used.
Zinc is often combined with vitamin C, vitamin D or magnesium in multi-ingredient formulas. Review the Supplement Facts panel to see what is included in a specific product.
