4-androstene-3b-ol, 17-one (4-DHEA) - promotes nitrogen retention, stiffness and blood volume in muscles. Also, the prohormone restores the natural production of Dehydroepiandrosterone, which is necessary for the production of androgens. Lack of this hormone also leads to decreased libido and osteoporosis. 4-DHEA also increases strength and delays muscle fatigue, and increases the calorie intake of muscle cells.
3b-ethanoxyandrost-4-ene-17-one (19-NorDHEA) is the better known name for this prohormone - Decasterone. It acts like Nandrolone, does not retain water, does not aromatize into estrogen and gives rise to predominantly dry muscles.
3β-hydroxypregn-5-en-20-one (Pregnenolon) is naturally produced in the body and serves as the first step for the formation of all steroid hormones. Pregnenolone is used to improve skin quality, increase energy and reduce fatigue, support prostate and heart function, etc.