Check out the info on Epi 2.0.
http://www.strongsupplementshop.com/epi-2-0-by-vital-labs
Why Is Epi 2.0 So Much More Effective Than the Competition?
Vital Labs carefully analyzed Epicatechin, and the unfortunate truth was that when people were taking it, their body was deactivating and barely absorbing majority of it, limiting its’ effectiveness.
The compound that helps you push past your own genetic potential, wasn’t even coming close to meeting its own potential.
The problem was the way your body metabolized the compound. Once in your system, the enzyme that metabolizes Epi would attach a sulfur atom to it - this is what causes the deactivation of the compound. Those same enzymes are also highly present in your skin, so Vital Labs had to immediately rule out a version of the product that you would rub on your skin (transdermal), as that would make the ingredient even less effective.
Vital Labs then discovered the answer to this problem.
The answer lied with an ingredient called Quercetin, an ingredient that inhibits this process, preventing the compound from being deactivated.
In fact, it prevents the deactivation so well, that it is almost doubles the amount of time the compound remains active (half-life) in your system.
Vital Labs went and upped the ante by adding in a massively strong, selective absorption promoter to the formula called Sodium Caprate. An ingredient that temporarily loosens the barriers between your intestines and blood stream selectively allowing compounds like Epi in, and allowing you to get the maximum amount of Epi absorbed!