This magazine I had was talking about the purity of diff. brands of CEE (without naming those brands, of course). The results were 70% of them were either not pure or had no trace what so ever. It did say that there was a simple way to test this. CEE is suposed to be water soluble and should disolve easily in a glass of water. Dump a half a teaspoon into a settled glass of water. If it floats or settles at the bottom, it's not pure.
I ordered mine (Higher Power) from bulk nutition. That one floated. I recieved a letter from them stating that it was definatly not pure and they sent me the real deal. This new one settled at the bottom.
Try this at home and see what happens. If yours doesn't float or settle at the bottom, please let me know what brand your using. Also I'm interested in how most of ya'll ingest yours. I mix mine in Crystal Light lemonade. Thanks guys.