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c/vendorvetting·posted 4 months ago by u/coa_janitor

stalled for 21 weeks at 5mg and I refuse to panic this time

Vendor Well Actually ×6 Slow Clap ×2

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

The claim: vendor matters. The counter-claim: it is measurement error. Both sides have been asserting it confidently for about 15 months without either producing anything.

What would actually settle it is 3 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.

1,997 up / 265 down88% upvoted49 commentsid 158jqq9 Mar 2026

49 comments

20 in this archive, depth 3

best — the order this archive was captured in

u/dagny_ogunleye233 points·4 months ago

did they reship, credit, or ghost you?

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u/matias_falk0 points·4 months ago

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

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u/greta_lokken102 points·4 months ago

the reship rate on QST is actually pretty consistent

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u/denied_again_d35 points·4 months ago

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

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u/throwaway_titration110 points·4 months ago

Correct. The batch number is load-bearing information, not optional.

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u/usp_appendixcompendial57 points·4 months ago

QST order #2, Denmark, no drama, receipts inside

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u/sena_ferreira-13 points·4 months ago

GGPeps order #14, Ireland, no drama, receipts inside

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u/lina_ndiaye35 points·4 months ago

independent test or vendor COA, which is it

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u/column_dead_volume83 points·4 months ago

the batch number or it did not happen

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u/teodor_lokken65 points·4 months ago

the batch number or it did not happen

Yes, exactly this, and it is the bit that took me 93 weeks to accept.

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u/matias_falk23 points·4 months ago

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

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u/gustav_vermeulen0 points·4 months ago

one vendor per post, multi-vendor goes in the monthly thread

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u/dilara_weiss1 point·4 months ago

one vendor per post, multi-vendor goes in the monthly thread

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

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u/nz_unfunded1 point·4 months ago

GGPeps order #22, Ireland, no drama, receipts inside

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u/ghrp_history51 points·4 months ago

I am going to push back on this slightly.

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u/lina_dziedzic26 points·4 months ago·edited

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

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u/patient_labslip_log15 points·4 months ago

Is that a PeptideMeter result or are you quoting the vendor COA?

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u/elin_ferrari10 points·4 months ago

receipts or nothing, sorry but that is the rule

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u/coa_janitorOPmod · c/coa6 points·4 months ago

receipts or nothing, sorry but that is the rule

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

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u/ruben_brandt12 points·4 months ago

GGPeps order #16, Canada, no drama, receipts inside

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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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Aug 2023created
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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.
  4. Vendor staff must self-identify. Undisclosed vendor accounts are banned on sight.
  5. Independent community. Nobody here sells anything, and anyone who tries is banned.
  6. Not medical advice. Describe what you did; never prescribe to a stranger.
  7. Claims need evidence. Batch numbers, dated screenshots, independent test reports, or a citation.
  8. No referral links, discount codes or affiliate URLs. Permanent ban, no appeal.
  9. No contact handles, wallet addresses or tracking numbers — they identify people.
  10. Be recognisably decent. Disagree hard, insult nobody.
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Before you read on

Several compounds discussed on GLP Research Hub are sold for research use only and are not approved for human use anywhere. Nothing here is medical advice and none of it is written by your clinician. If a post reads like an instruction, treat it as a description of what one stranger did.