update 28/02/2015
The benefits of D-AA are specific to it, and do not extend to aspartic acid or L-aspartate.
PCT use
D-AA can be used as a testosterone booster for infertile men, and by athletes as a temporary booster. Elevated testosterone levels.
Shown in human scientific studies to raise testosterone levels in healthy males an average of 42% in 12 days. D-Aspartic Acid thus may be suitable for males seeking an increase in endogenous testosterone levels. It particully may be beneficial for trainers or bodybuilders seeking increases in strength, libido, performance, recovery, muscle hypertrophy
D-AA works in the central brain region to cause a release of hormones, such as luteinizing hormone, follicle-stimulating hormone, and growth hormone. It may also build up in the testicles, where it alleviates a rate-limiting step of Testosterone synthesis, which leads to a testosterone increase.