Supplement Quality

Price is not a reliable indicator of berberine potency or quality. Third-party testing is presented as a minimum standard for supplement quality. Thesis says it rejected multiple supplied ingredients after independent labs found they failed active ingredient requirements. Third-party testing is more important than price when selecting berberine products. The article criticizes supplements that lack effective doses or properly standardized ingredients. Berberine product quality varies significantly across supplements. Lion's mane products are used as an example of supplements that may be underdosed or poorly characterized.