Red Rex EAA is a supplement that typically contains Essential Amino Acids (EAAs) which are amino acids that the body cannot produce on its own and must be obtained through food or supplementation. Amino acids are the building blocks of protein, and EAAs play a critical role in muscle recovery, growth, and overall body function. "Red Rex" might be the brand name or a specific product line designed to support athletic performance, muscle building, and recovery.
