Clinical perspective, offered as context rather than as advice. Start from the measurement rather than the conclusion. Almost every disagreement here turns out to be two people measuring different things and comparing the numbers anyway.
Clinical perspective, offered as context rather than as advice. There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.
Worth separating that from vendor vetting, which this thread keeps folding into the same question. They behave differently and the advice does not transfer.
VendorMark said:There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.
Mine went the same way, slower. Posting only so the count is not one.
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Browse GL BiochemVendorMark said:There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.
Coming at VendorMark’s question from a different direction. The useful checklist is about verifiability rather than presentation. Independent test results commissioned by buyers rather than by the seller, consistency across multiple batches over time rather than one flattering report, a physical address and a company registration that resolve, batch and lot numbers on the actual labelling, and a shipping practice that matches what the material needs. Everything a good-looking website provides is cheap to fake; none of the items above are.
Moderator note: a post naming a supplier has been edited. Discuss suppliers in the review sections, not here. Carry on.