Pure Encapsulations, Pregnenolone, 30 mg, 180 CapsulesHormone Precursor to Support Memory Non GMO & Hypoallergenic Dietary Supplement Certified Gluten Free by the Gluten Free Certification Organization Pregnenolone has been described as the Grandmother of all Steroid Hormones, since all steroid hormones, over 150 of them, are derived from pregnenolone. This pregnenolone supplement supports memory, positive mood and emotional well being, as well as promoting a healthy immune system response.