Labdoor analyzed 15 of the best-selling creatine supplements in the United States. Our analysis quantified levels of total creatine and creatinine, along with heavy metals like arsenic, cadmium, and lead.
Creatine supplements represented the lowest average variance among all of the categories tested by labdoor. On average, products missed their label claim by just 0.7% and 43% of the category met their label claims.
All products in this report were screened by Inductively Coupled Plasma (ICP)-based techniques for the presence of heavy metals. Samples of each product passed all heavy metals assays including arsenic, cadmium, lead and mercury.