This matters for reading the evidence: a paper studying recombinant full-length T4 is not automatically evidence about a fragment sold as TB-500, and product labeling in the research-chemical channel is inconsistent enough that the exact contents of any given vial cannot be assumed
The clinical translation of those findings to an oral supplement context has not been established through published human pharmacokinetic data
USA 107 , 1822618231 (2010)
As a consumer representative, I worry what placing a bulk substance on the list conveys in terms of FDA approval, said committee member Todd Durham, senior vice president of clinical outcomes and research at the Foundation Fighting Blindness, who voted no on adding these peptides to the list
The level of active ingredients could be higher or lower than claimed and these ingredients could interact with other medications and foods
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