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c/vendorvetting·posted 2 months ago by u/adnan_karlsen

what would you tell week-1 you about testing

PSA Receipts ×3

Confession thread, sort of.

I went from 10mg to 2.5mg much faster than I should have because the scale had stalled and I got impatient. The stall broke about 4 weeks later, at which point I had no way of knowing whether the dose increase did anything or whether it would have broken anyway.

So now I have reflux I did not need and a data point I cannot interpret. Two lessons in one.

Posting it in the hope that somebody at week 76 reads it before doing the same thing.

977 up / 254 down79% upvoted29 commentsid 13b7nh24 May 2026

29 comments

11 in this archive, depth 3

best — the order this archive was captured in

u/camila_sandvik125 points·2 months ago
the VendorInvestigate number or it did not happen
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u/nz_unfunded92 points·2 months ago

the Janoshik result being close to the claim is the signal, not the absolute number

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u/gustav_vermeulen74 points·2 months ago

You have restated the marketing copy. What is the actual substance here.

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u/solene_eriksen24 points·2 months ago

How many orders from QSC is that a sample of? One reship is noise, five is a pattern.

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u/ireland_drugs_pay86 points·2 months ago

You have restated the marketing copy.

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/ledger_modMOD45 points·2 months ago

Tracking number removed. It identifies both ends of a shipment.

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u/kofi_ferreira16 points·2 months ago

How many orders from CPC is that a sample of? One reship is noise, five is a pattern.

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u/sofia_ferreira13 points·2 months ago

Did you test the vial you received or are we going off the vendor COA?

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u/coa_janitormod · c/coa28 points·2 months ago

Rodent data is rodent data. Dose scaling is not linear and the models tell you what to investigate, not what to expect.

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u/adnan_karlsenOP15 points·2 months ago

Tested 6 batches from Homopeptide over 22 weeks. The consistency is the signal. They claim 98, they deliver 98.

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About c/vendorvetting

The community due-diligence desk. Vendor experiences, independent third-party test results, shipping and reship records, and the boring paperwork that separates a supplier from a story. Every substantive claim is expected to carry a receipt: an order id, a dated screenshot, or a test report from Janoshik, Medutest, PeptideMeter or VendorInvestigate.

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Sponsored

Janoshik Analytical

Independent HPLC and mass spec. The number you get is the number they found.

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GL Biochem (Shanghai)

Custom peptides and amino acids direct from the manufacturer since 1998. ISO 9001 / cGMP. Batch COA every order.

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