HCG, is not an anabolic/an-drogenic steroid but a natural protein hormone which develops in the placenta of a pregnant woman. The commercially available HCG is sold as a dry substance and can be used both in men and women. in women injectable HCG allows for ovulation since it influences the last stages of the development of the ovum, thus stimulating ovulation. In a man HCG stimulates pro-duction of androgenic hormones (testosterone). For this reason athletes use injectable HCG to increase the testosterone produc-tion. HCG is often used in combination with anabolic/androgenic steroids during or after treatment.