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12 contributions to The Peptide Learning Hub
Third Party Testing
I ordered from the chemical plant and plan on third party testing my product. I haven’t received half of the COAs which is fine because no disrespect but I don’t trust COAs from any manufacturer. I’m honestly surprised that nobody is talking about grouping together and pitching in for testing. I will be sending in Tesa, GHKCU, IPA, and BPC157/TB500. If anyone bought the same and are interested in my results DM me and I will provide them for a small fee so I can at least recoup a little money from my testing fees.
0 likes • 1d
Is that going to be for premium members only? I’m not a premium member but I bought from the 1st chem plant group buy before it went premium so I’ve been a little in the dark.
Failed endotoxin tests - KPV
Just a heads up to the pin and pray folks, a batch of raw KPV API has been tied to failed endotoxin tests from multiple vendors for both KPV and KLOW. It’s a great time to learn about the importance of this test!
1 like • 6d
Was it from a group buy?
Good Morning TPLH - COA follow up
Yesterday I asked: When you look at a peptide COA, what’s the first thing you check? Now let’s break down some of the important things a Certificate of Analysis can tell you — and what it doesn’t tell you. 1. Identity First question: Is the compound actually what the label says it is? Depending on the testing method, identity may be evaluated using techniques such as mass spectrometry. A purity percentage alone does not necessarily establish identity. 2. Purity HPLC (High-Performance Liquid Chromatography) is commonly used to evaluate peptide purity. You may see results such as 98%, 99%, or 99%+ purity. Remember: purity describes the proportion of detected material represented by the target compound under that analytical method. It does not automatically tell you how many milligrams are in the vial. 3. Quantity / Peptide Content This is different from purity. A vial can test at very high purity and still contain more or less peptide than the amount stated on the label. Look for testing that actually evaluates peptide content or quantity, when available. 4. Sterility & Endotoxin Testing These are separate tests from purity and identity. A standard HPLC purity report does not prove that a sample is sterile or establish its endotoxin level. If those characteristics are being claimed, look for the appropriate separate testing. 5. Lot or Batch Number The COA should be traceable to the specific batch or lot it represents. A beautiful COA isn't very useful if you can't determine whether it corresponds to the actual batch being discussed. 6. Testing Date Check when the sample was analyzed. Testing dates help establish when the reported results were obtained. 7. Testing Laboratory Look at who performed the analysis. Ideally, the laboratory and report should be independently verifiable rather than relying solely on a screenshot supplied by a seller. THE BIG TAKEAWAY Purity ≠ quantity ≠ sterility ≠ identity. They answer different questions and may require different analytical methods.
0 likes • 7d
I ordered Tesa, IPA, Wolverine, and GHKCU from the chemical plant. I am willing to send my viles in for testing if anyone else ordered the same and are interested in pitching in some 💵. Shoot me a message if interested. I live and work in/near Los Angeles and have a lab close by that my friends company uses to test their peps.
📢 Chemical Plant COA Update
I’m currently sorting and organizing all the Certificates of Analysis (COAs) for previous Chemical Plant orders. Everything will be sent out today. Please keep an eye on your messages and email. Thank you for your patience! ❤️
0 likes • 12d
@Salem Rose yes
0 likes • 7d
Any update with the remaining COAs?
AOD -UPDATE
Update - I received the Acetic acid today and reconstituted another vial of AOD. No gel and clear!🎉🎉 Thanks everyone for all the comments. Just reconstituted my 5mg AOD from the chemical lab with 1 ml bac water and it’s not clear and has floaters. Help!
AOD -UPDATE
0 likes • 12d
I’ve used AOD the last couple months and never had any issues😬 I use hospira BAC and my AOD was from a different company. I’d be a little hesitant to pin that…
4 likes • 12d
I’ve used BAC water for 10 straight viles with zero issue.
1-10 of 12
Eric Samples
2
10 points to level up
@eric-samples-8915
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Active 6h ago
Joined Aug 13, 2026
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