batch — my 10-week log, condensed into one table
Posting this because I searched for it and got nothing useful.
Setup: 15mg, week 60, constipation present but not ruining anything. I changed exactly one variable — area percent — and tracked it for 6 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.
best — the order this archive was captured in
the related substances line is where the story is
Sent one vial to PeptideMeter and VendorInvestigate. 99.0% and 98.6%. Cost me more than the vial did and I would do it again.
Cosigning. The batch number is load-bearing information.
That is net peptide content, not purity. Different number, different meaning.
This is the correct framing. The COA structure matters as much as the number.
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.
This is the correct framing. The COA structure matters as much as the number.
Sent one vial to PeptideMeter and VendorInvestigate. 97.9% and 94.2%. Cost me more than the vial did and I would do it again.
the method line is doing real work, not just window dressing
The chromatogram trace is where the real information lives. The summary number is just a headline.
Sent one vial to PeptideMeter and VendorInvestigate.
Disagree on that part. 98.4% and 98.3% on the same vial is normal.
Small correction: the trial was 2 weeks, not 20. Does not change your point but people will quote it.
Water content on the document? That affects your concentration math.
Metadata check caught a COA that was created in a browser four months after the analysis date. Not evidence of fraud, but worth flagging to SGN.
Metadata check caught a COA that was created in a browser four months after the analysis date.
Yes, exactly this, and it is the bit that took me 8 weeks to accept.
Cosigning. The batch number is load-bearing information.
no "is this good?" without saying what the compound and claimed purity are
no "is this good?" without saying what the compound and claimed purity are
Adding to this: related substances is doing more work than the comment implies.
That is net peptide content, not purity. Different number, different meaning.
the related substances line is where the story is
The practical rule people converge on is 28 days at fridge temperature after first puncture, and that comes from the preservative, not the peptide.
Retitled to remove editorialising. Put the evidence in the body.
Retitled to remove editorialising.
Disagree on that part. 95.1% and 96.2% on the same vial is normal.
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This is the correct framing. The COA structure matters as much as the number.
the counterion is part of the mass you paid for
Retitled to remove editorialising.
Yes, exactly this, and it is the bit that took me 90 weeks to accept.
Small correction: the trial was 11 weeks, not 28. Does not change your point but people will quote it.
Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.
- 1Sent one vial to PeptideMeter and VendorInvestigate. 97.9% and 94.2%. Cost…13 comments in this branch · started by u/kavya_verhoeven
- 2Retitled to remove editorialising. Put the evidence in the body.7 comments in this branch · started by u/certified_reference