[tubebender]

My only experience with chemistry came in the spiffy little kit I got one Christmas many many years ago but this statement jumped out at me... the atomic weight of carbon in natural human testosterone is higher than that in pharmaceutical testosterone.

[SouthTexas]

I know just enough about chemistry to be dangerous. Probably moreso to myself than others. :)

It’s like somebody got a new scale for Christmas and is now out to correct the world.

[coloradan]

Well, for starters human testosterone has carbon-14 in it, while that made from petroleum has had millions of years during which it has all decayed. (This is how “carbon dating” works.) Furthermore, there is a natural isotopic abundance of C-13, about 1% of naturally-occurring carbon is this. But the ratios aren’t exactly the same everywhere, and it’s entirely possible that C-13 is more abundant in human bodies than it is in oil. It wouldn’t have to be much more to be detectably more.

[Erasmus]

My only experience with chemistry came in the spiffy little kit I got one Christmas many many years ago but this statement jumped out at me... the atomic weight of carbon in natural human testosterone is higher than that in pharmaceutical testosterone.

One wonders what chemical processes can bring that about (although I for one don't wonder too awfully hard).