Glycine, NAC, Taurine, Alpha Lopoic , D3+K2, Creatine, Glutamine, Zinc, Selenium, Ashwaganda, Magnesium glycinate >all for keeping vibrant and ready, and keeping muscle on me at my age of 68 yrs. Been taking 2.5 mg of Tadalafil, helps with my urine flow and BPH and also pre workout.