high-performance liquid chromatography
NOW Testing of Oregano Oil Supplements Finds Two-Thirds Failed Potency
NOW (Bloomingdale, IL) recently tested 35 oregano oil supplements purchased from Amazon. Results showed that nearly two-thirds of the products failed potency testing and six had no detectable carvacrol, the active measurable component in oregano oil. In fact, many of the soft gel samples contained virtually no oregano smell or taste, according to NOW. NOW ...
NOW Testing of Methyl B12 Brands Highlights “Inherent Complexity”
NOW (Bloomingdale, IL) continued its award-winning quality testing program with a survey of 25 different brand samples of methylcobalamin (methyl B12) purchased on Amazon in January 2025. Methyl B12 was chosen because of its high cost and potential failure of its potency label claim. The results once again identified brands not meeting label claims, but ...
NOW Testing of SAMe Brands From Amazon Reveals Continued Labeling and Quality Problems
The most recent examination from NOW’s (Bloomingdale, IL) award-winning testing program, demonstrated “profound quality and labeling failings continue” for SAMe samples purchased on Amazon in October 2024. This is the 19th round of testing NOW has performed. NOW previously investigated “suspicious” SAMe (S-adenosylmethionine) supplements from Amazon in March 2020 with all 11 testing at low ...
NOW Testing Reveals Problems With Resveratrol Products
NOW Health Group’s (Bloomingdale, IL) latest round of testing investigated 30 resveratrol products purchased on Amazon. This was the 18th round of testing since 2017, all of which “raised serious concerns,” according to the company. Resveratrol is a popular antioxidant found naturally in grapes, red wine, peanuts and herbs. Japanese knotweed extract is the most ...
NOW Testing Identifies Creatine Gummy Failings
NOW Foods’ (Bloomingdale, IL) latest round of testing turned its attention to creatine gummies, identifying significant product failings, according to the company. Creatine is a compound produced in the body to give muscles short-term energy popularly used in dietary supplements. According to NOW, there was a disconnect between claimed dosages and technical capabilities. NOW has ...
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