Personally I just bought plain L-Arginine and Nature's best creatine monohydrate. Then I found out that it's hard for free form arginine over 2 grams in pill form to convert to NO.
What I don't understand is putting creatine into NO products. In the only test that's been conducted, pre-workout creatine didn't appear to do anything. It seems that creatine needs time to go through your system. It's post-workout creatine that helps because it helps to conserve a certain anabolic hormone (I forget which) and thus helps with protein synthesis. I've also read that you can sort of overload yourself with creatine, and of course too much caffeine blunts the effect of creatine.
Basically, you should only take 3-5 grams of creatine a day (a teaspoon full or less) and it has the greatest effect post-workout. The NO products are primarily pre-workout supplements. It's kind of counterproductive to put creatine and NO boosters together, IMO
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