Buy 99.3% Purity Laboratory Tested Prohormone Raw 4-androstenedione (4-AD) Powder With Discreet Shipping Fast Delivery   About 4-Androstenedione 4-Androstenedione is a hormone produced naturally in the body by the adrenal glands, the ovaries (in women), and the testicles (in men). The body first manufactures DHEA , then turns DHEA into 4-Androstenedione, and finally transforms androstenedione into testosterone, the principal male sex hormone. 4-Androstenedione is …