NOW has released the results of its latest testing, focused on the Glutathione quality in lesser-known supplement brands purchased on Amazon. Overall, quality is improved, the company says, although the tests found three potency failures and two heavy metal issues among the 19 brands tested.
As with its prior analysis, the company performed one set of testing in its own quality labs as well as independently at Eurofins. Both labs tested all products by HPLC analysis. NOW includes its own brand in the group of products being examined.
Two brands failed heavy metal testing: Emily Bright and Northern Crown both tested above Prop 65 levels for lead. The other 17 brands were all below Prop 65 levels.
“The quality of these lesser-known brands purchased on Amazon is greatly improved, but we are still finding unacceptable lapses,” said Dan Richard, NOW’s VP of Global Sales and Marketing.
