A study of supplements sold at well - known retailers including Walmart, Walgreens, Target, and GNC showed that one in four of the supplements tested, including many herbal supplements, didn't contain
the active ingredient listed on the label in any quantity.
Some products do not even contain
the active ingredients listed on the label, and others can contain the ingredient in inefficacious or harmful quantities.
Not exact matches
Because
labeling laws
on homeopathy are so different from regulations
on real medicine with proven
ingredients, the only actual drug in a bottle of homeopathic medicine — ethanol, the same
active ingredient in vodka — doesn't have to be
listed as a drug.
To address this problem a variety of companies have developed services that provide third - party analysis for supplement manufacturers to ensure their supplements are free of contaminants and contain
active versions of the
ingredients listed on the
label.
«It's up to the informed retail store to educate their clients about the difference between therapeutic levels of
active ingredients and just a pinch of an
active ingredient so it can be
listed on the
label.»