NPA raises concerns about ConsumerLab analytical methods

By Shane Starling

- Last updated on GMT

Related tags Test method

Eye to eye: Industry and ConsumerLab rarely see things that way
Eye to eye: Industry and ConsumerLab rarely see things that way
The Natural Products Association (NPA) has entered the debate about the analytical methods employed by product tester, ConsumerLab, by calling on the product tester to make its standards and methods more transparent.

“As a paid-for testing program, ConsumerLab has a lot of influence over public perception of the supplements they test; however, transparency is a pillar of good science,”​ said NPA scientific and regulatory affairs manager, Cara Welch, PhD.

“Solid scientific results require labs to be operating under appropriate GMP procedures as well as utilizing scientifically valid testing; without providing this information, ConsumerLab makes it impossible to comment on the report’s validity or accuracy.”

The report in question being ConsumerLab’s recent survey of DHEA products.

Publication of standards

But ConsumerLab president Tod Cooperman, MD responded by saying his company published its standards with each product review – including the DHEA survey that prompted NPA’s comments.

“ConsumerLab always provides testing information free to the public for every review,”​ Cooperman said, noting such information for the DHEA survey could be found here.

“In fact, ours is the only testing group that provides that transparency. In addition, as clearly noted in our release, the majority of products in the report were selected by ConsumerLab.”

“Two products, clearly noted as having been certified through testing in our Voluntary Certification Program, are included in the report. Those products undergo the same testing as the products that we select.”

Cooperman invited the NPA or other parties to contact his company if they had further questions about its methods, adding the ConsumerLab website notes all products it surveyed are, tested at nationally and internationally recognized independent commercial and academic laboratories that are qualified and selected by CL based on their expertise for the type of specific testing needed for each product.”


ConsumerLab’s reference testing methods and measurements were questioned recently by American Herbal Products Association (AHPA) in regard to a survey ConsumerLab conducted of valerian products.

The issue there was the measurement of various valerenic acids, their sources (dried versus fresh for instance), and the manner in which European Pharmacopeia (EP) standards had been applied.

DHEA (dehydroepiandrosterone) survey

The DHEA product survey found 11 of 12 products in the $55m category met their label claims, but one provided only 14.7 percent of its on-label amount. ConsumerLab also raised questions about the steroid hormone's purported health benefits.

"Levels of DHEA decrease with age, which is why it has been promoted as a 'fountain of youth,'​ Cooperman said. ”Several studies have shown that it does not improve strength or general well-being in seniors. But DHEA may improve skin condition, sexual function and libido, and osteoporosis in older individuals."

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Not far enough

Posted by Adam Goodman,

While it is a good idea to question their testing methods, the NPA should also investigate their business practices, and how those practices impact their testing accuracy.

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Lab Reports

Posted by Harry Simpson,

Whatever product may be selected from a lab, report for info, the user will only use, if what is suggesed as being effective to achieve the required results under clinical applications or personal needs. No one person is alike therefore only the clinic and the individual can determine the highly variable and appropriate need at anyone time.
What is an health risk? who if anyone can determine what at the appropriate level that an individual may need for good health?

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Is this really transparent?

Posted by Marc Ullman,

Once again Mr. Cooperman has sought to depict his company as a protector of consumer interests despite his sworn testimony to the Senate Special Committee on the Aging earlier this year that companies that pay to have their products certified own their test results and can thus prevent "unsatisfactory" results from being published. Mr. Cooperman's testimony also seems to imply that this would be true even if those test results indicated a public health risk. I would appreciate an explanation Mr. Cooperman how this kind of withholding of information from the public by his company is consistent with his claims to transparency.

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