Nandrolone phenylpropionate (NPP)

Nandrolone phenylpropionate, also known as NPP, is an anabolic androgenic steroid (AAS) that belongs to the family of nandrolone compounds. It is a modified form of testosterone with an attached phenylpropionate ester, which alters its pharmacokinetics and provides a shorter half-life compared to other nandrolone esters.