This is because the 5-alpha reductase enzyme acts to reduce the potency of nandrolone, while in contrast many other anabolic steroids are unaffected by this enzyme, potency is actually increased by it.
ນີ້ແມ່ນຍ້ອນວ່າ enzyme 5-alpha reductase ເຮັດເພື່ອຫຼຸດຜ່ອນຄວາມສາມາດຂອງ nandrolone, ໃນຂະນະທີ່ໃນທາງກົງກັນຂ້າມຫຼາຍ steroids anabolic ອື່ນໆແມ່ນບໍ່ໄດ້ຮັບຜົນກະທົບໂດຍ enzyme ນີ້, ແລະການສັກຢາຂອງ testosterone ແມ່ນຕົວຈິງແລ້ວເພີ່ມຂຶ້ນໂດຍມັນ.