D-Aspartic Acid: is one of two forms of the amino acid, aspartic acid. It is described as a neurotransmitter and a stimulant that acts as a regulator of testosterone synthesis.

We rely on many different natural functions to ensure we achieve our fitness goals. As we get older, some of those functions begin to become less effective. To ensure that our bodies have the ability to utilize their resources as effectively as possible, we need to make sure that we have adequate hormones racing to our rescue for everything from energy to recovery.