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c/coa·submitted 1 year ago by u/yusuf_nakamura

what would you tell week-1 you about area percent

COAbranch of 8 comments

Confession thread, sort of. I went from 15mg to 7.5mg much faster than I should have because the scale had stalled and I got impatient. The stall broke about 7 weeks later, at which point I had no way of knowing whether the dose increase did anything or whether it would have broken anyway. So now I have muscle cramps…

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8 comments, started 1 year ago
u/chidi_demir379 points·1 year ago

Are you looking at area% or net peptide content? Different numbers.

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[removed]143 points·1 year ago

[removed by moderator]

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u/rania_okonkwo51 points·1 year ago

the related substances line is where the story is

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u/first_hundred115 points·1 year ago

[removed by moderator]

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/anders_kuusela235 points·1 year ago

axis labels included, always

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u/laila_yilmaz83 points·1 year ago

Cosigning. The batch number is load-bearing information.

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u/neha_erdogan312 points·1 year ago

Are you looking at area% or net peptide content? Different numbers.

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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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