your blood How magnum trt  of how the BetaSitosterols in the nettle interact with the Sex Hormone Binding Globulin in your blood Sex Hormone Binding Globulin SHBG is a protein in your blood that binds to the testosterone in your system It strips the testosterone of its anabolic potency which is what makes it work BetaSitosterols help by binding with the the SHBG instead freeing your testosterone This allows more of your T to travel around your blood stream unaffected Its a great addition to this supplement Boron This is a good ingredient in Magnum trt too Boron is a mineral which has been linked to helping your testosterone while also reducing your estrogen levels This gives you testosterone a lot of support to rise and creates the conditions to keep it that way Its a good choice in Magnum.