Prototype Nutrition Pr Spray Promote brain health Increase energy Support hormone balance Predator Nutrition Review Pr Spray by Prototype Nutrition is an advanced topical product that will improve hormone & brain function. Pr Spray is an excellent option to support hormonal balance while increasing muscle mass. It is also great for improving your mood & energy. Prototype Nutrition Review Pr Spray provides pregnenolone in a sustained release form, aiding in a host of natural processes enhancing hormone & brain function. Pregnenolone is a hormone naturally produced in the body. It is synthesized in the adrenals & gonads where it serves as a precursor to all the steroid hormones – DHEA, testosterone, progesterone, estrogen, cortisol, aldosterone & others. Pregnenolone is also synthesized in the brain & central nervous system, where it acts (directly & as the sulfate) as a neurosteroid. As a neurosteroid it serves a variety of functions – most notably as an enhancer of NMDA activity & suppressor of GABA activity. This may in part be responsible for its purported memory enhancement, mood elevating, & energizing activities. Pr Spray provides pregnenolone in a sustained release form for maximum round the clock bioactivity.