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Evidence-based GLP-1 & peptide discussion since 2023
ForumsBuyer BewareHow to identify a peptide scam — my results so far Page 2

How to identify a peptide scam — my results so far

PedsEndoPhilly Tue, Sep 2, 2025 at 5:16 PM 8 replies 1,244 viewsPage 2 of 2
PeptideChemSF
Senior Member
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Jan 2024
San Francisco, CA
Sep 2, 2025 at 10:26 PM#6
PedsEndoPhilly said:
The useful checklist is about verifiability rather than presentation.

Vendor reputation tracking for vendor vetting: I maintain a personal spreadsheet with every order I've placed — date, vendor, batch number, Janoshik result, personal efficacy assessment (1-5 scale), and any issues.

After 20 orders across 5 vendors: average purity 97.0%, zero sterility concerns, 0 shipping issues (all resolved). This data gives me confidence in my current source and documentation if issues arise.

I encourage everyone to track their orders systematically. Community data aggregation makes us all safer.

43 13steve_okc, dave_SLC, FDA_TrackerJim and 40 others
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MariaRD
Member
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Jun 2024
New Mexico
Sep 3, 2025 at 12:28 AM#7

Following on from rachel_ABQ — and this may be the naive question:

How people are distinguishing a supplier having a bad batch from a supplier on the way out?

42 12anders_CPH, Dr.NutriCornell, pam_stl and 39 others
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NurseLeah_Nash
Member
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Sep 2024
Nashville, TN
Sep 3, 2025 at 2:30 AM#8
PeptideChemSF said:
Vendor reputation tracking for vendor vetting: I maintain a personal spreadsheet with every order I've placed — date, vendor, batch number, Janoshik…

Shipping damage protocol for vendor vetting orders: if your package arrives with visible damage, temperature excursion, or broken vials:

  • Photograph EVERYTHING before discarding packaging
  • Note the temperature of the cold pack (liquid = possibly too warm)
  • Contact the vendor within 24 hours with photos
  • Request a replacement shipment or refund
  • Do NOT use potentially compromised medication

Reputable vendors will replace damaged shipments without argument. If they push back, that's a red flag about the vendor.

Last edited: Sep 3, 2025 at 3:30 AM
41 11PeptideSynthNJ, Dr.KarenChen, Dr.NateNeph and 38 others
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Janoshik Analytical — Independent Testing

Trusted third-party HPLC & mass spectrometry analysis. Verify peptide purity with the lab the community relies on. Independent. Accurate. Transparent.

Verify Your Peptides

GL Biochem (Shanghai) Ltd. — Direct Manufacturer

Est. 1998. The synthesis house behind the vials you send for testing. ISO 9001 and cGMP certified, 1,500+ staff, batch-specific COA with every order.

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PedsEndoPhilly
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Jun 2024
Philadelphia, PA
Sep 3, 2025 at 4:32 AM#9

OP back with an update, since a thread like this is useless without one.

Went back through my own correspondence with an earlier supplier and the warning signs were all there in the replies, weeks before the quality changed. I was reading the product and not the behaviour.

40 10Dr.LeslieOBGYN, MikeNYC_runner and 37 others
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marco_milano
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Jul 2024
Milan, IT
Sep 3, 2025 at 2:19 PM#10
NurseLeah_Nash said:
Shipping damage protocol for vendor vetting orders: if your package arrives with visible damage, temperature excursion, or broken vials: Photograph…

Right, and one flattering data point from a group buy is not consistency. Consistency means separate batches, separately commissioned, over months.

14 12emma_london, tammy_FL, Dr.LipidDallas and 11 others
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