Question about COA

john_askins

GLP-1 Novice
Member Since
Dec 16, 2025
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Planing to buy from a vendor and they don’t have a COA for their current tirz batch. Is this a red flag? I see everyone uses jano- I assume I should send it all out to be tested before using any? First time ordering and I’m sure I’m making all the same mistakes many have. Thanks in advance
 
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Vendor "COAs" are pretty much useless unless they're promising to guarantee the results when independently third-party tested (and has a history of doing so). It takes time and watching and reading to figure out whose test results are most frequently backed up by independent testing.
 
Vendor "COAs" are pretty much useless unless they're promising to guarantee the results when independently third-party tested (and has a history of doing so). It takes time and watching and reading to figure out whose test results are most frequently backed up by independent testing.
They offer a full refund or replacement of my tests prove inconsistencies with their claims STOP MENTIONING SOURCES NEWBIE they have sent the product out for testing. Is it common for everyone to just get their batches tested again before using them? I’d say it seems expensive but I suppose it’s still cheap compared to pharma brands
 
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