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Establish whether the product is the full-length peptide that was actually studied or a fragment that was not, and ask the seller for a certificate of analysis and independent third-party assay confirming what the vial contains and that it is sterile

It's long enough to reliably reach the subcutaneous layer without being intimidating or going too deep

Nature 507 , 238242 (2014)

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This is why the 2ml reconstitution works best for the earlier phases of a protocol when doses are lower
