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c/vendorvetting·posted 5 months ago by u/ipamorelin_i

[Discussion] we are measuring vendor at the wrong time and calling it noise

Discussion Receipts ×5 Long Haul ×3

Trying to settle this properly because the thread from last year went in circles.

The claim: PeptideMeter matters. The counter-claim: it is measurement error. Both sides have been asserting it confidently for about 8 months without either producing anything.

What would actually settle it is 29 people measuring the same thing the same way. I have started; my numbers are below. They lean one way but not strongly enough for me to declare victory.

If you have data, post the data. If you have an opinion, flair it as an opinion.

11,021 up / 9,497 down54% upvoted43 commentsid 11woif11 Feb 2026

43 comments

30 in this archive, depth 5

best — the order this archive was captured in

u/chidi_roos248 points·5 months ago
this deserves more than 17 upvotes
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u/tl_dr_tina0 points·5 months ago

referral links mean instant ban, no exceptions

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u/joaquin_petrov1 point·5 months ago

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

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u/naomi_ekstrom1 point·5 months ago·edited

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

Adding to this: Medutest is doing more work than the comment implies.

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u/cormac_pereira-34 points·5 months ago

This order history matches mine almost exactly. Same vendor, same timeframe, same result.

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u/janoshik_junkieindependent tester1 point·5 months ago

Slight fix: the number was 99.1, not 93.7. Decimal point, but a fairly consequential one.

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u/lane_map_larrylogistics1 point·5 months ago

independent test or vendor COA, which is it

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u/dario_petrescu1 point·5 months ago

The confident tone is doing a lot of work that the evidence is not.

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u/ipamorelin_iOP1 point·5 months ago

Ordered from WXT, got the vial, tested it myself via Janoshik, and it held the claim. Order fulfilled.

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u/pavel_kravchenko1 point·5 months ago

That is net peptide content, not purity. Different number, different meaning.

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u/batch_number_bertievetting138 points·5 months ago

This order history matches mine almost exactly. Same vendor, same timeframe, same result.

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u/rina_nascimento37 points·5 months ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/laila_almeida25 points·5 months ago

Yeah, GL Biochem took 8 days and the material was flawless. Both of those things are true.

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u/rohan_krastev11 points·5 months ago·edited

receipts or nothing, sorry but that is the rule

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u/batch_number_bertievetting45 points·5 months ago

the reship rate on QST is actually pretty consistent

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u/liv_dumitru91 points·5 months ago

JEEP order #5, Ireland, no drama, receipts inside

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u/swirl_dont_shakereconstitution50 points·5 months ago

JEEP order #5, Ireland, no drama, receipts inside

Adding to this: order records is doing more work than the comment implies.

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u/search_before_post25 points·5 months ago

This order history matches mine almost exactly. Same vendor, same timeframe, same result.

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u/mikkel_kimani17 points·5 months ago

independent test or vendor COA, which is it

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u/cormac_pereira19 points·5 months ago

order date, product, and what was tested. that is the template.

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u/ledger_modmod · vetting6 points·5 months ago

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

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u/camila_sandvik56 points·5 months ago

Yeah, ERP took 18 days and the material was flawless. Both of those things are true.

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u/ipamorelin_iOP34 points·5 months ago

Yeah, ERP took 18 days and the material was flawless.

Yes, exactly this, and it is the bit that took me 83 weeks to accept.

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u/thermal_mass_tom22 points·5 months ago

JEEP order #5, Ireland, no drama, receipts inside

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

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u/ipamorelin_iOP0 points·5 months ago

independent test or vendor COA, which is it

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u/sofia_nascimento53 points·5 months ago·edited
wrong community but useful, so, shrug
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u/honest_syringe1937 points·5 months ago

CPC took 2 days to answer an email and the material was flawless. Both of those things are true.

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u/kasper_cabrera26 points·5 months ago

CPC took 2 days to answer an email and the material was flawless.

Adding to this: testing is doing more work than the comment implies.

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u/camila_sandvik31 points·5 months ago

did they reship, credit, or ghost you?

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u/elise_grimaldi16 points·5 months ago

the reship rate on GL Biochem is actually pretty consistent

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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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c/vendorvetting rules
  1. One vendor per post. Multi-vendor comparisons go in the monthly comparison thread.
  2. No referral links, discount codes or affiliate URLs. Zero tolerance, permanent ban.
  3. Positive and negative reports both need the same evidence standard: order date, product, and what was tested.
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