PRG Pro - Pregnenolone is a hormone precursor naturally produced within various cells of the body including the brain, retina, myelin sheaths (part of nerve cells in the brain and central nervous system), adrenal glands, liver, skin, thymus gland (which plays a role in immune function), and testes or ovaries. It can then be converted into other hormones such as progesterone, estrogen, testosterone, cortisol and aldosterone. Owing to the numerous different organs and glands throughout the body that respond to pregnenolone or the hormones that are made from it, maintaining healthy levels of this important and versatile compound may influence a range of issues in physical and mental health, as well as cognitive function. The hormones made from pregnenolone help support healthy sexual function, physical energy, balanced moods, a positive mental outlook, a healthy stress response, fluid and electrolyte balance in the body, healthy cognition and more.