Dxn Code Strike workout it's going to have l-arginine and or l-citrulline in it that's pretty much everyone does everything does and so you can use that your body can use those things to make nitric oxide and that's about half of the production that you make but what ends up happening as you get older and my older I mean after about age 40 your body is not able to make as much nitric oxide because you get atherosclerosis which messes up the cells in the blood vessels ability to be able to make that your oxide from those compounds so after about age 40 adding things like l-arginine l-citrulline in in high doses is not actually effective for increasing nitric oxide which is interesting and that if you look online if you google right now you know nitric oxide booster have hundreds of them and pretty much all of them will have l-