Perhaps we need to discuss whether or not you are looking for something sustained or temporary. This is contingent on whether or not you subscribe to the theories related to gyno reduction and the influence of local xenobiotics.
I personally believe that all observed reductions are in fact a byproduct of local diuresis -- something Lipoderm Ultra is already VERY effective at -- rather than reduction of breast tissue driven by apoptotic mechanisms.
Secondly, Lipoderm Ultra is designed for hydrophilic compounds. Going off the top of my head, I'm doubtful that many of the OTC anti-E's are readily soluble in such a medium given their aromaticity.
When discussing alternatives to gyno reduction, I've gone the way of the knife, sadly.