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.
No. B12 supplements may contain cyanocobalamin or methylcobalamin. Products also vary in dosage, serving size, format and additional ingredients; review the Supplement Facts panel.
Some contain B12 alone, while others combine it with additional B vitamins or other nutrients. Review the Supplement Facts panel to compare formulations.
Cyanocobalamin and methylcobalamin are two forms of vitamin B12 commonly used in supplements. Product formulations vary by brand; review the Supplement Facts panel.
B12 is available in tablets, capsules, sublingual drops, lozenges and sprays. Product availability varies by brand.
Review the product label for directions for use and precautions. If you have questions about whether B12 is appropriate for you, consult your healthcare provider.