People go above and beyond for simple things. Arginine can be found in fruit and lean meat. Watermelon has the highest amount. Want more arginine get more citrus in your body because it helps produce more arginine. Why take supplements when you can make your body produce more of what you’re looking for? Who’s to say that’s even arginine in there? Get you some berries, lemon juice and watermelon, blend that shit up and drink a cup of that everyday I bullshit you not, your veins will open up like the girl you lost your virginity to. I ate watermelon everyday for a week straight and my penis wouldn’t stay soft to save my life. Its because my veins were opening up and able to get an excellent blood flow. I’m against supplements, especially when you can produce these things with a better effort