is pregnenolone a hormone
Presentation of Pregnenolone. Pregnenolone is a natural steroid hormone that is a precursor to testosterone and other hormones. Pregnenolone is found in the nervous system, adrenal glands, skin, eyes, brain, testicles in men, and ovaries in women.regnenolone is a natural steroid hormone that is a precursor to testosterone and other hormones. Pregnenolone is found in the nervous system, adrenal glands, skin, eyes, brain, testicles in men, and ovaries in women.