TweetCombining those will have no side effects, if that is what you are asking. Creatine i usually take 5 grams before workout in the morning and another 5 grams in the afternoon. You can start out with 5 grams and buildup. As for Diet Fuel, it is made by Twinlabs and should have directions on the bottle, NITRIX, i have no idea, but im thinking it is an antioxidant with most likely L-Arganine in it. You can buy L arganine for much less then these so called muscle volumizer products, which all have the main active ingrediant l-arganine. I used to work for a healthfood and supplement distributor many years ago and represented these companines like Twinlabs, Schiff, Now, etc. There is alot of hype out there, and im sure your aware the supplement industry is a billion $ business.