05-11-2014, 05:38 AM
It's counterintuitive, but DHEA concentration increases more if you swallow it than if you absorb it sublingually. (I have blood tests that verify this.) It turns out that DHEA needs sulfation by the intestine in order to better survive liver processing. See page 966 under the heading "Optimizing the bioavailability of exogenous DHEA".