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c/coa·submitted 2 months ago by u/coa_janitor

am I the only one who found COA harder than the injections

Suspiciousbranch of 4 comments

Been lurking in c/tirzepatide for about 15 months and finally have something worth posting. Short version: week 5, 7.5mg, and water content is the bit I still cannot get a straight answer on. I have read the wiki, I have read the last 27 threads, and the answers split roughly down the middle. What I actually want to…

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4 comments, started 2 months ago
u/gallbladder_gary-10 points·2 months ago

This is the correct framing. The COA structure matters as much as the number.

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[removed]1 point·2 months ago

[removed by moderator]

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u/anecdata_annie1 point·2 months ago

Tested the GLB raw material and a reseller vial side-by-side. Same purity claim, different impurity profiles. Handling matters.

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u/milos_vanhecke1 point·2 months ago

Yeah, 96.8% area is not the problem, the missing impurity breakdown is the problem.

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How to read a certificate of analysis and what it does and does not tell you. Area% versus mass%, identity versus quantity, water content, related substances, acetate counterions, and the difference between a vendor-supplied COA and an independent test on the vial you actually received.

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