Why does every Testagen vendor claim exactly 99% purity?

Started by PeptideExplorer · · 23 replies · 1,811 views

Searched first, found bits of this scattered across old threads, so figured I’d start a proper one.

Every vendor page for Testagen says basically the same thing in the same order, which makes me think none of them wrote it.

What bugs me about Testagen is how confident everyone is. Nobody hedges. Everyone has a protocol.

For what it’s worth the Institute has 1 published test on Testagen, which is where I started.

Interested in actual experiences, and please say when you’re guessing.

23 comments 1,811 views Jump to comments

23 comments showing 2

8

If your solution went cloudy after reconstitution that is usually either the diluent or the temperature it was stored at. Worth posting what you used.

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2

Quantitative amino acid analysis is what actually verifies content. Weighing the lyophilised powder does not, because you are also weighing residual salts and moisture.

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