Nandrolone Phenylpropionate contains the short-acting nandrolone ester. Serum nandrolone levels rapidly increase after IM administration with peak serum levels being reached within 24 to 36 hours. Nandrolone Phenylpropionate clears rapidly compared to traditional Nandrolone Decanoate. It accelerates muscle growth, stimulates appetite, increases red blood cell production, and improves bone density.