Fuente: WIPO "essential oil or extracts" A composition useful for maintaining healthy levels of testosterone in men and women. The composition includes essential oils from a tree of the genus Picea or a product of this oil. The essential oil product can specifically come from essential oil from the plant Picea pungens, commonly referred to as Blue Spruce. Also disclosed is a method for maintaining healthy levels of testosterone in men and women utilizing the composition. In some implementations, the composition is a pharmaceutical composition that further includes a penetration enhancer. A method for utilizing the pharmaceutical composition for treating hypogonadism is also disclosed.