Methods 13 , 823827 (2016)
Vendor evaluation checklist Before purchasing from any online source, work through this checklist: Batch-specific COA available with HPLC and mass spec data Purity documented above 98% via HPLC Mass spectrometry confirming correct molecular weight (4,731.4 g/mol) Third-party testing results available or offered Clear labeling as research use only Verifiable business identity and contact information Consistent pricing with market averages Proper shipping conditions (temperature-controlled when necessary) Return or replacement policy for quality issues Responsive customer service that can answer technical questions Checking every item does not guarantee a perfect product, but it eliminates the most common sources of quality problems
Follow the date and storage instructions on your specific vial, and discard it if it is cloudy, discolored, or has been frozen
Nielsen, L.L., Young, A.A., Parkes, D.G
GLP-1 and GLP-1/GIP medications can be appropriate for many people with hypothyroidism, but they are not a one-size-fits-all solution