Nandrolone phenylpropionate (NPP steroid) is one of the esters of the steroid nandrolone, active up to 4-8 days (half-life – 2-4 days) after application: in comparison with nandrolone decanoate, the ether chain of phenylpropionate is about half as long, which provides it with the fastest entry into the bloodstream but limits the duration actions. As […]