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c/coa·submitted 2 years ago by u/karma_irrelevant

[Question] how do you actually verify water content

Questionbranch of 5 comments

Week 10 update. 31kg down from the start, muscle cramps basically gone since about week 62. Things that worked: consistency, protein at breakfast, walking more than I want to. Things that did not: everything I bought on the internet to help with muscle cramps. The part that surprised me is how much of this is admin.…

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5 comments, started 2 years ago
u/dario_vermeulen0 points·2 years ago

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

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u/elodie_yilmaz1 point·2 years ago

redact your own name, not the vendor's batch details

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u/joaquin_ivaturi1 point·2 years ago

post the whole document, not the headline number

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u/aurel_boateng1 point·2 years ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/karma_irrelevantOP1 point·2 years ago

Water content was 3.8%, acetate was 6.2%, purity was 99%, but net peptide was only 90% of the label weight. Perfectly honest, just chemistry.

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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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