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Evidence-based GLP-1 & peptide discussion since 2023
ForumsCOA & Analytical TestingUnderstanding peptide purity percentages — what worked for you? Page 6

Understanding peptide purity percentages — what worked for you?

LondonLisa Wed, Apr 16, 2025 at 10:14 AM 38 replies 2,088 viewsPage 6 of 8
FitDadDave
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May 9, 2025 at 3:54 PM#26
Dr.NateNeph said:
I tested my certificates of analysis batch through Janoshik — 98.4% purity.

That is right for the common case. Whether it is right for the case being asked about depends on a detail that has not been given.

18 16Dr.NephBHM_UK, kim_atl_prep, sarah_TO and 15 others
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PedsEndoPhilly
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May 12, 2025 at 4:49 AM#27
Dr.NateNeph said:
I tested my certificates of analysis batch through Janoshik — 98.4% purity.

That reframing is the part I needed. I will report back once I have actually tried it.

19 17wendy_avl, jason_paloalto, Dr.LeslieOBGYN and 16 others
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SleepDoc_PDX
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May 14, 2025 at 5:43 PM#28

Adding the clinical framing, because it changes how the question reads. The mechanism and the magnitude are separate questions. Agreeing that something happens says nothing about whether it happens enough to act on.

20 18carlos_SATX, sophie_paris, mel_PDX and 17 others
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Dr.RheumBOS
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May 17, 2025 at 6:35 AM#29
SleepDoc_PDX said:
The mechanism and the magnitude are separate questions.

Mine went the same way, slower. Posting only so the count is not one.

Last edited: May 17, 2025 at 12:35 PM
21 19lori_vegas, Dr.PulmRoch, maya_sedona and 18 others
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LondonLisa
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May 19, 2025 at 7:26 PM#30

Closing the loop on my own question.

For the archive: it took about six weeks rather than the two I expected, and the difference between those two numbers was the whole of my problem.

43 16SallyK_inj, CryptoCarl, MariaRD and 40 others
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