Nandrolone Phenylpropionate (NPP) is a popular anabolic steroid used by athletes and bodybuilders to enhance muscle growth and performance. While it offers desirable fitness-related benefits, one of its potential side effects is acne breakout.
Acne formation can be triggered by the increase in androgenic hormones present in NPP, leading to excessive sebum production. When excess sebum combines with dead skin cells, it can clog pores, resulting in the formation of acne.