can someone help me clear this up. i never know when some one is talking about deca whether they're referring to nandrolone decanoate or nandrolone undecanoate. i've read the profile and i know that undeca is the ester and therfore has a slower release time, but what are the other differences between deca and undeca. i originally got confused coz someone told me a good non-oral cycle was enth and deca then he wrote (nan undeca). i thought it was called dynabolan? so, when people are talking deca are they meaning durabolin or dynabolan? help me out guys!!