Amino Acids are the building blocks of muscle protein. Getting adequate amounts of Amino Acids is difficult for those who exercise. Exercise burns Amino Acids rapidly. Failure to replenish the body with proper Amino Acids can cause people who work out vigorously to make little or no progress.
Amino Acids are best used as Free Form and Branched Chain. These Amino Acids do not require digestion and go straight into the blood stream for immediate use by muscle cells. BCAA also provides 70% of the body's Nitrogen requirement.
I'll find strength in pain.