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c/coa·posted 1 year ago by u/purity_pedant

stalled for 17 weeks at 12.5mg and I refuse to panic this time

Question Clean Column ×7 Long Haul ×3 Slow Clap ×3

Posting this because I searched for it and got nothing useful.

Setup: 10mg, week 21, injection-site soreness present but not ruining anything. I changed exactly one variable — related substances — and tracked it for 12 weeks.

Result: a difference, but a small one, and well inside what I would call noise if someone else posted it. So I am putting it here rather than presenting it as a finding. If two or three other people have done the same thing we might actually learn something.

Not medical advice, obviously. This is one person with a spreadsheet.

6,425 up / 375 down94% upvoted22 commentsid 1usc9a18 Jun 2025

22 comments

7 in this archive, depth 4

best — the order this archive was captured in

u/nikhil_lindqvist299 points·1 year ago
okay but what dose
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u/ghrp_history240 points·1 year ago

Strongly agree. Mass% and area% are answering different questions on the same document.

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u/sofia_ferreira66 points·1 year ago

Strongly agree.

Disagree on that part. 93.7% and 99.3% on the same vial is normal.

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u/isabela_nilsen129 points·1 year ago

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

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u/purity_pedantMOD71 points·1 year ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

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u/isabela_nilsen49 points·1 year ago

the batch number or it did not happen

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u/dario_vermeulen68 points·1 year ago

Strongly agree. Mass% and area% are answering different questions on the same document.

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About c/coa

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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Independent HPLC and mass spec. The number you get is the number they found.

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