GLPHubglpresearchhub.com
Read-only archive. GLP Research Hub is a static community record — nothing here is for sale, no account is needed, and no vote you cast is counted. Why?
3.9k
c/vendorvetting·posted 11 months ago by u/thermal_mass_tom

why does nobody talk about VendorInvestigate

PSA Cold Box ×5 The Quiet One ×3 Receipts ×1

Right, the testing question again, but with numbers this time.

I have 10 data points over 36 weeks. The pattern is consistent enough that I do not think it is chance, and boring enough that nobody is going to screenshot it, which is usually a good sign.

The thing I would flag for anyone new: the effect I am describing showed up at week 71, not week 25. People give up long before the interesting part.

Interested in whether this matches other people's logs or whether I am an outlier.

4,653 up / 722 down87% upvoted42 commentsid 1agmyh5 Aug 2025

42 comments

30 in this archive, depth 5

best — the order this archive was captured in

u/bpc_scepticresearch peptides373 points·11 months ago

Cosigning the evidence standard. Receipts make the community.

replysharereportpermalink
[deleted]135 points·11 months ago

[deleted]

replysharereportpermalink
u/greta_lokken171 points·11 months ago·edited

First order from ERP was great, second one had a different batch and tested lower. The vendor retested and credited me. Logged it here.

replysharereportpermalink
u/dario_petrescu226 points·11 months ago

Crossposting this to c/bpc157 because the people who need it are not reading this community.

replysharereportpermalink
u/thermal_mass_tomOP117 points·11 months ago

Crossposting this to c/bpc157 because the people who need it are not reading this community.

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

replysharereportpermalink
u/ledger_modMOD95 points·11 months ago

Removed a chain here. The rule is one line long and it is not negotiable.

replysharereportpermalink
u/sterile_field_steph75 points·11 months ago

No. This is the kind of confident post that gets copied into a screenshot and repeated for years. Where is the evidence.

replysharereportpermalink
u/denied_again_d60 points·11 months ago

Which service tested it and what did they come back with?

replysharereportpermalink
u/dagny_ogunleye158 points·11 months ago

independent test or vendor COA, which is it

replysharereportpermalink
u/zaid_eriksen187 points·11 months ago

Batch number? Date? Method? Give us the load-bearing fields.

replysharereportpermalink
u/gustav_lindholm64 points·11 months ago

independent test or vendor COA, which is it

replysharereportpermalink
u/zeynep_duarte128 points·11 months ago

vendor staff must self-identify, full stop

replysharereportpermalink
u/hassan_nilsen41 points·11 months ago

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

replysharereportpermalink
u/boots_or_bust152 points·11 months ago

Not to be pedantic but testing and reship are being used interchangeably and they are not interchangeable in real life.

replysharereportpermalink
u/sena_ferreira33 points·11 months ago

Batch number? Date? Method? Give us the load-bearing fields.

replysharereportpermalink
u/dario_petrescu89 points·11 months ago

Slight fix: the number was 95.1, not 94.2. Decimal point, but a fairly consequential one.

replysharereportpermalink
u/coa_janitormod · c/coa105 points·11 months ago

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

replysharereportpermalink
u/sofia_ferreira22 points·11 months ago

receipts or nothing, sorry but that is the rule

replysharereportpermalink
u/pavel_kravchenko61 points·11 months ago

the reship rate on BCH is actually pretty consistent

replysharereportpermalink
u/rina_nascimento29 points·11 months ago

the reship rate on BCH is actually pretty consistent

Disagree on that part. 98.1% and 98.3% on the same vial is normal.

replysharereportpermalink
u/adnan_karlsen36 points·11 months ago
i have this exact spreadsheet
replysharereportpermalink
u/alcohol_aversion30 points·11 months ago

Went through three vendors to find one that actually ships on-time and tests clean. The answer was WWB.

replysharereportpermalink
u/anders_osei10 points·11 months ago

independent test or vendor COA, which is it

replysharereportpermalink
u/bence_zielinski12 points·11 months ago

Not convinced. The evidence does not support that reading.

replysharereportpermalink
u/zeynep_zielinski10 points·11 months ago

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

replysharereportpermalink
u/arne_nyberg8 points·11 months ago

positive and negative reports both need the same evidence standard

replysharereportpermalink
u/camila_sandvik21 points·11 months ago

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

replysharereportpermalink
u/step_count_stan31 points·11 months ago

This is the "correlation is mechanism" thing again. You changed three variables at once.

replysharereportpermalink
u/tl_dr_tina18 points·11 months ago

referral links mean instant ban, no exceptions

replysharereportpermalink
u/coa_janitormod · c/coa12 points·11 months ago

did they reship, credit, or ghost you?

replysharereportpermalink
Permalinked branches
Deep branches get their own page so a single reply chain can be linked and read on its own.
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.

96kmembers
130submissions
Aug 2023created
submissions / month, last year
Sponsored

Janoshik Analytical

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

janoshik.com
Sponsored

GL Biochem (Shanghai)

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

glbiochem.net
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.
Moderators
Volunteers. Unpaid, unaffiliated, and reachable through modmail only.
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.