Testosterone is the principle male hormone. After the age of 25, the testosterone levels in men begin declining at an average of 1.25% per year resulting in fat deposits, a decline in libido, sexual organ shrinkage, loss of lean muscle mass and fatigue. This decline in known as andropause. Androgens are the male hormones, specifically testosterone and DHEA, that help provide energy, stamina and sex drive. They are also what increases strength of all the structural tissues - skin, bones, muscles and heart. Maintaining proper balance of these hormones prevents depression and mental fatigue. Active Ingredients: Homeopathic Testosterone, GABA acid (gama aminobutyric acid), Diindolymethane, herbal extracts of Horny Goat Weed, Mucuna Pruriens, Tribulus Terrestris, Ginko Biloba Other Ingredients: Purified water, Saower oil, Aloe Vera, Organic Grain alcohol, Sepigel 305, Evening Primrose oil, Hemp seed oil, Lecithin, Vitamin E oil, Mandarin Red oil, Potassium Sorbate, Sorbic Acid.