D-Aspartic Acid

amino-acid · endocrine · reproductive · Oral

D-Aspartic Acid, an amino acid. D-enantiomer of aspartate — accumulates in pituitary + testes where it stimulates GnRH / LH / testosterone release… Oral half-life 4 h.

D-enantiomer of aspartate — accumulates in pituitary + testes where it stimulates GnRH / LH / testosterone release acutely. Modest short-term testosterone bump (~30%) in untrained men attenuates / reverses by week 3+. Weak ergogenic / libido effect.