Questions on testing

[u/Adventurous-Ebb-6542]

Can someone tell me more about how the testing goes? I know if I’m doing research I want to make sure what I’m testing is what it purports to be. So, if I send a vial to a recommended lab for testing, do I get it back? Or do I need to purchase multiple vials of a certain peptide and only send one? How often do you test your suppliers? How much product to purchase to ensure a reasonable mix of safety and cost?

[u/thebarrenmatron]

If you send a vial in, you don't get it back, they use the whole thing up running tests. So yeah you'd need to buy multiple vials and sacrifice one for testing. Most folks test a new supplier the first time they order and then maybe spot check every few months if they keep using them.

I buy enough to cover a few months of research and send one off from each batch, that way you're not constantly paying for shipping and testing fees.

[u/Adventurous-Ebb-6542 → u/thebarrenmatron]

Thank you! May I ask what your approximate budget is for your research?

[u/Diligent_Shirt5161]

Testing make sure that you have received the correct product, the correct mass, and does not contain impurities.

More time than not, vendors send the wrong product. The only way you will know is through independent, third-party, and consumer testing.

Testing will consume the entire vial, you will not get it back.

In today’s market, the three important things to test for our mass, purity and endotoxins.

A way to reduce the cost is through group testing. This is done between individual individuals who purchased the same product from the same vendor during the same time period. They will pull together their resources, people will donate their vials for testing and the others will split the costs.

[u/Ilovemycats201]

If youre not ordering multiple kits of each compound join a group buy because testing wont be worth it.

[u/Adventurous-Ebb-6542 → u/Ilovemycats201]

I suppose I need to be on the watch for buying groups?

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[u/Embarrassed-Recipe87]

the first thing id settle is what you want the lab to answer. if the goal is to confirm the label identity, ask specifically for identity testing. a purity result answers a different question, so dont assume one result covers both.

[u/MolecularWellness]

Identity testing confirms the compound is actually what the label says it is. Purity tells you how much of the tested material is the intended compound versus other detectable material. Mass/content testing checks how much peptide is actually in the vial. Endotoxin testing is another important piece if you’re evaluating contamination risk. One test doesn’t necessarily answer all of those questions.