Testogen helps to increase testosterone levels, resulting in an increase in sexual libido, muscle mass, and energy. The TestoGen is manufactured by Ronnie Coleman and acts directly on the man’s brain through a complex signal chain called the hypothalamic-pituitary-gonadal axis. TestoGen has been scientifically proven and is safe and effective. TestoGen consists of eight main ingredients: D-aspartic acid (D-AA), vitamin B6, fenugreek, zinc, ginseng extract, Tribulus Terrestris, selenium, and cholecalciferol. Each pack of Testogen consists of 120 capsules. The recommended dose is 1 capsule daily and should be taken 20 minutes before sexual activity. The effective time is 6 hours.