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  • Batchmark for group testing?

    Peptide Discussion lab-test
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    S
    @pep_researcher it ended I posted the link. https://t.me/c/3957053913/1
  • More on Labs Reference Standards are the key

    Peptide Discussion lab-test
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    The whole lab thing is really interesting. I raised this before about reference standards and building a catalogue. Janoshik supposedly has a million dollars in reference standards. Vanguard spent $100,000 just this year on reference standards. How much do you think labs like ILS, Freedom or even Kovera have spent on the most important item to accurately measure a peptide? Do they even have a standard? Or are they just entering the peptide name into the equipment? Kyrsia recently covered this "Vanguard said it uses a reference standard for all of its methods and had accumulated more than $100,000 worth of standards during the previous year alone, stored across multiple freezers, refrigerators and at room temperature as appropriate. That gives some useful context to a line on a laboratory report that most customers probably never think about. A reference standard isn’t simply a generic database entry or a name typed into the instrument. It is physical reference material that has to be obtained, stored and maintained, and for less common compounds it may be expensive or difficult to source. So perhaps another question worth asking a testing laboratory isn’t simply: “Can you test this peptide?” But: “What reference standard are you using to identify and quantify it?” Because the quality of a test doesn’t begin when your vial enters the machine. It begins with what the laboratory has available to compare it against."
  • 1 Votes
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    rickdiculousR
    @SkepticJen I agree its super fascinating and this site is an absolute gem! I appreciate all the tips
  • Nexaph MOTS-C

    Peptide Discussion mots-c researching lab-test
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    @atlas01 anything above 96% is technically pharma grade, but I would stick above 98%
  • H Geee H Testing

    Peptide Discussion researching beginner-question lab-test
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    D
    Im not planning on running the upper limits of the reference range for longevity
  • Nexaph, EZ, and stateside lyophilization Q

    Peptide Discussion lab-test
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    F
    @pep_researcher the advantage of stateside freeze/drying (lypho) is it allows for better quality control assuming you start with good raw api, but its an art form as each peptide has its own characteristics of sublimation. 2ndly, endo's can be introduced at any stage of production upto sealing the vial and good practice requires having the raw tested just like a vial before starting the process. So the fill finisher should know what the quality is before production and the API may be used in multiple batches when it is bought in the KG sizes. Also, I believe Nexaph is a stateside fill finisher per K-Hole.
  • Mass Spec question

    Peptide Discussion glp2-t beginner-question lab-test
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    vpepsV
    @mitchelldemeter OK, maybe you can answer me this LC-MS question. For example, during synthesis of EDR they messed up and made it in reverse: RDE. Will it be detected or we will think it's EDR because the mass is the same? Or, in a longer peptide chain, if 2 amino acids are swapped because of operator error. Sometimes it is possible, as I understand. The total number of amino acids in the chain will be the same, just the order is different. Can it be detected?
  • 1 Votes
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    R
    I was looking at Selank from Mile High and same… 100% purity.
  • 1 Votes
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    468 Views
    pep_researcherP
    ordered it myself @damic That's what I did for my as vet was ultra conservative about ordering labs (they try to save insurance money, God knows why). But now that subclinical Hashimoto has got detected, will demand the vet to prescribe follow up blood work using pet insurance in another few months while putting on some pepper pickles. Hopefully vet agrees else will order independently. Yeah capitalism and free markets rock! And you are absolutely right about normal T3, T4 being misleading. That's how it was for my rat.
  • Thanks for the Batchguild Reference

    Peptide Discussion lab-test
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    Re: Discussion: Nexaph Thanks for the shoutout. I have been working on the Batchguild.com website over the last 6 months! I found a real gap between people just passing off COAs around vs what's really explained in them. For example: Most beginners do not know that Mass/Purity is not the only test you get, you can also get Endotoxins tested. I've also been trying to build a database of publicly available COAs across Janoshik and Freedom. I've now added a new feature which not only uses Certificate, but explains whats in the certificate, what it means for the Researcher amongst other things. Would love some feedback on how people see this will be used. [image: 1785697430240-whatsinit.png]
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    pep_researcherP
    @ResearchCat LLM tools as well as people on other pep forums (not compounded tirz Subrs) said there's definite molecule fracture that will cause loss of efficacy with freezing and thawing due to the way water behaves. Lyophilization isn't comparable. Worthwhile to run an experiment. Compounded T Redditters claim to do it, but all claims are anecdotal like 'they FELT the same ', no one has a proof with a COA.
  • 3 Votes
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    RandyR
    Just waiting on ILS to deliver some and we will have the same.
  • Nexaph 3rd Party Testing

    Peptide Discussion glp2-t beginner-question lab-test
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    @Randy I am about to buy some filters for the first time ever. Your filter videos are super helpful!
  • Endotoxins and heavy metals

    Peptide Discussion lab-test
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    K
    @Falc thanks for tip - just in on the lastest pre-order test - I like that idea for sure
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    C
    But, again vendors COAs don’t really mean anything. Third party tests are better. Testing yourself is the best...
  • GYC GGPeps SS-31

    Peptide Discussion ss-31 lab-test
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    J
    Dang, sorry i missed this one. Would love to hear how it goes once you get your results. Im still on the hunt for some SS-31 at a reasonable price.
  • Bloodwork Library

    Results & Lifestyle progress-log lab-test other-peptide
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    hunt_akH
    Sweet, it is Ulta...which is what I was going to go with. Thanks!
  • 0 Votes
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    hunt_akH
    @Stevepep said: Basically said sterility and quantity is all you need to test; Purity and quantity you mean? I watched it and then rewatched it and couldn't hear him reference sterility. Overall I feel that the interview threw a large wet blanket on a lot of the fear mongering surrounding gray...thoughts?
  • Anyone tried/tested AAVANT Research @aavant

    Peptide Discussion lab-test
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    @wd good to know. I was definitely about to use the website. Thank you
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    @volume-1 I buy from Glacier and Mile High, I do not test because of reputation to date. In fact, one of the best to probably buy from right now is Mile High because they recently got an FDA letter so they know someone is watching them. Testing is expensive and if you need to test go buy bulk at Aavant or GGPeps and join a group or conduct your own testing.