DMAA is a stimulant that cannot be derived from something found in nature so it was banned. High Tech Pharmaceuticals claimed it could be and engaged in legal proceedings with the U.S. Supreme Court...
If you're eating enough, hydrating well and working out in a hospitable environment it's hard to say either would be better in terms of noticeable benefits but I guess EAAs would be the better choice...
Adequate protein intake will minimize muscle loss when eating at a deficit, this is free form aminos with bioperine to help with absorption to theoretically help you recover faster than by actually...