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c/vendorvetting·submitted 1 months ago by u/arne_nyberg

i keep a spreadsheet of every vendor claim and whether it survived contact with a lab

Vendorbranch of 11 comments

i keep a spreadsheet of every vendor claim and whether it survived contact with a lab — a position I have arrived at slowly and would like tested. Why the directory has two tiers, since the question comes up whenever somebody new finds it. Twenty suppliers have enough independent results, over enough separate lots,…

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11 comments, started 1 months ago
u/ipamorelin_i25 points·1 months ago

The wider-market rows in the directory carry a band and a report count and nothing else, deliberately. Anything more would be manufacturing precision that the evidence does not support.

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u/search_before_post20 points·1 months ago

the lot on the vial has to match the lot on the certificate, every time

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[deleted]9 points·1 months ago

[deleted]

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u/arne_nybergOP4 points·1 months ago

Correction: that supplier is in the documented twenty with a source page, not in the wider-market table. Different evidence bases entirely.

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u/arne_nybergOP1 point·1 months ago

Minimum order and lead time — did they quote both up front?

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u/patient_labslip_log13 points·1 months ago

Kept a spreadsheet of quoted versus actual lead time across 24 orders. The quoted number held.

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u/greta_perrin21 points·1 months ago

Inter-lab variance on this assay runs a point or two either way. Two services disagreeing by that much is agreement, not a discrepancy, and treating it otherwise starts pointless arguments.

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u/sig_figs_sammod · analytical31 points·1 months ago

Paradigm Peptide came up in three threads the week I was ordering and I could not find a single independent result for them anywhere. Went with a documented supplier instead.

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u/arne_nybergOP-17 points·1 months ago

How many separate lots is that across? One lot tested twice is one data point.

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u/adnan_sandvik1 point·1 months ago

Careful. "Nobody has tested Peptidology" is a statement about this board, not about the supplier. Say the first thing, not the second.

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u/nordic_pricing1 point·1 months ago·edited

How many separate lots is that across?

arne_nyberg is describing the batch record test and it is the fastest signal available before you spend anything.

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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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