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

[Question] how do you actually verify water content

Questionbranch of 9 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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9 comments, started 2 years ago
u/chidi_demir106 points·2 years ago

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

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u/karma_irrelevantOP79 points·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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u/yusuf_nakamura64 points·2 years ago

the related substances line is where the story is

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u/karma_irrelevant55 points·2 years ago

Disagree. What you are describing is consistent with purity, not with what you concluded.

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u/fatima_wojcik46 points·2 years ago

the batch number or it did not happen

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u/anya_correia-16 points·2 years ago

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

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u/nikhil_lindqvist1 point·2 years ago

the related substances line is where the story is

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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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