c/vendorvetting · created 14 Aug 2023
Independent testing, order records and receipts. Claims need evidence.
Short version of the title, which is already short: split one vial across PeptideMeter and VendorInvestigate — 99.0% and 99.1%. Longer version underneath. Since the…
unpopular opinion: most of what gets said here about PeptideMeter is guesswork. Not a hot take, just something I have not seen said plainly here. Kept a spreadsheet of…
vendor is the most under-discussed thing on this board. Change my mind, genuinely — I have no stake in being right about this. What "documentation" actually means,…
split one vial across Janoshik and Medutest — 97.4% and 96.2%. I will put the method line and the batch identifier up front because that is what makes this checkable.…
Send the vial, get the number. Third-party purity and identity testing, results published to you regardless of what they say.
Test a vialSponsoredEst. 1998. ISO 9001 and cGMP, 1,500+ staff, 200+ patents. There is a fair chance the vial you are about to send for testing started here. Batch-specific COA as standard.
glbiochem.netvendor is not what most of this community thinks it is — with the reasoning, because a rule without a reason gets ignored. What "documentation" actually means, since…
The title is the argument: the PeptideMeter question that gets asked weekly, answered properly. Here is the rest of it. The thing that decided it for me was that SWB…
Asking properly rather than in a comment on somebody else’s thread: testing — what am I missing here. Why the directory has two tiers, since the question comes up…
The title is the whole question — genuine question about Medutest that I am slightly embarrassed to ask — but here is why I am asking. Where a supplier holds regional…
genuine question about VendorInvestigate that I am slightly embarrassed to ask — that is what I am asking, and I have already read the wiki twice. What "documentation"…
reship — what am I missing here. Searched first, found three threads that contradict each other, hence the post. A certificate with a purity figure and no method line…
Trying to get a straight answer on this: someone explain Medutest to me like I have not read a paper in years. Inter-lab variance on this assay runs a point or two…
proposal — a flair for vendor posts. This affects how posts get sorted and removed, so it belongs in the open. A certificate with a purity figure and no method line is…
The claim in the title is exactly the claim I am making: 5th independent test on SGN — 98.3% on a claimed 98.0%, and the trend is the interesting part. Nothing implied…
Slightly embarrassed to be asking this, but: how much of what we believe about VendorInvestigate actually comes from testing threads. Regional stock made more…
Slightly embarrassed to be asking this, but: how much of what we believe about testing actually comes from Janoshik threads. Independent testing is worth more than a…
Vendor-level purity averages over time, built from independent results rather than vendor claims. Transparent methodology, open dataset.
Browse resultssomeone explain Janoshik to me like I have not read a paper in years. I would rather ask a basic question now than get this wrong quietly for two months. A certificate…
Trying to get a straight answer on this: how do you actually verify order records. Why the directory has two tiers, since the question comes up whenever somebody new…
20th independent test on QYB — 97.9% on a claimed 97.0%, and the trend is the interesting part. That is the headline. The document, the batch and the service are below…
Asking properly rather than in a comment on somebody else’s thread: can we stop arguing about VendorInvestigate until somebody posts a number. Inter-lab variance on…
the reship thing finally clicked for me and I want to write it down. It is the sort of thing everyone half-believes and nobody writes down. Asked ERP for the batch…
reship — 11 things I got wrong before I got it right. Not a hot take, just something I have not seen said plainly here. Kept a spreadsheet of quoted versus actual lead…
The title is the whole question — do order records actually matter or is it forum lore at this point — but here is why I am asking. The thing that decided it for me was…
order records are doing more work than we give it credit for. Making the case below, and I expect to lose some of it in the comments. Regional stock made more…
unpopular opinion: most of what gets said here about VendorInvestigate is guesswork — a position I have arrived at slowly and would like tested. Why the directory has…
The title is the whole question — can we stop arguing about Medutest until somebody posts a number — but here is why I am asking. What a batch record should carry: the…
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.
Independent HPLC and mass spec. The number you get is the number they found.
janoshik.comSponsoredCustom peptides and amino acids direct from the manufacturer since 1998. ISO 9001 / cGMP. Batch COA every order.
glbiochem.netSeveral 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.
Reference