Im researching into hydroxy nadrolone at this moment. I should have some answers for you in a few days. The only problem I see is the undecanoate ester may be too big to use in a transdermal so we may have to get some of the raw material. I have 10grams of 4-OHN that I got from a friend in the industry, in a homebrew right now that my bro is trying out for me. Orally, Im still trying to find out how the oil soluablity of this compund is. If it has a undecanoate ester and isnt very oil soluable then the ester isnt going to do anything for lymphatic absorb. Ill go look up some more info and Ill report back.