Pregnenolone Plus consists of 40mg of natural pregnenolone and 75 mg of niacinamide per vegetable capsule. Created by Neuro-Immune Specialist, Dr. Kendal Stewart, Pregnenolone Plus is a custom formula that provides pregnenolone and the active precursor niacinamide for ultimate delivery of pregnenolone and aid in the protection of the mitochondrial. Pregnenolone is the key precursor pro-hormone involved in maintaining sufficient steroid hormone levels in the body. It is the precursor (building block) for other hormones in the body including cortisol, DHEA, estrogen, progesterone, testosterone and aldosterone. Without pregnenolone there can be no human steroid hormone production.