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Evidence-based GLP-1 & peptide discussion since 2023
ForumsCOA & Analytical TestingCOA red flag compilation — what worked for you? Page 6

COA red flag compilation — what worked for you?

PharmD_Rodriguez Mon, Jan 20, 2025 at 6:03 PM 28 replies 1,920 viewsPage 6 of 6
AttorneyGrant
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Apr 6, 2025 at 5:43 PM#26
DataDave said:
Give anything pharmacological four weeks before you judge it, and give anything measured weekly a four-point rolling average before you call it a…

Genuinely useful, thank you. I had the facts and not the framework.

2 0Dr.SleepRoch, laura_annarbor
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Dr.KarenChen
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Apr 16, 2025 at 8:48 AM#27

From the other side of the consultation, briefly. If two explanations both fit, the useful question is which one predicts something the other does not. That is answerable; arguing about which sounds more plausible is not.

If somebody has the primary source to hand I would rather cite it than paraphrase it.

3 1JessicaM_2024, TomFromTexas, mike.trainer_LA
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BariatricNurseD
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Apr 25, 2025 at 11:47 PM#28
Dr.KarenChen said:
If two explanations both fit, the useful question is which one predicts something the other does not.

Can confirm. Same sequence, different timescale.

Last edited: Apr 26, 2025 at 4:47 AM
4 2josh_phd_bmore, roxy_nash, tony_orlando and 1 other
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Sigma-Aldrich — Research-Grade Standards

Certified reference materials, analytical reagents, and research-grade standards for peptide verification. Trusted by laboratories worldwide.

Shop Reference Standards
pete_nash
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May 5, 2025 at 2:40 PM#29
Dr.KarenChen said:
If two explanations both fit, the useful question is which one predicts something the other does not.

Coming at Dr.KarenChen’s question from a different direction. The provenance questions are more useful than the numbers. Does the report name the batch on your vial. Is the date consistent with when that batch existed. Is it addressed to the vendor or to the person who paid for the test. Was the sample taken from general stock or supplied by the vendor. A perfect certificate for a different batch is worth nothing, and vendor-supplied samples are the most common way a genuine report ends up misleading.

5 3SarahChen_PharmD, sarah.morrison, NeuroNate and 2 others
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PharmD_Rodriguez
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May 15, 2025 at 5:28 AM#30

Reporting back.

Purity and content being different measurements was the piece I was missing. The vial was overfilled and pure, which is a very different problem from the one I thought I had.

27 0MeganSA_TX, LarryQC_SD, wanda_boise and 24 others
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