I have bro, i have used it alone with no gear and along with gear, its obviously much better synergisticly with gear, however I was amazed at how much size i kept and how full i looked on just IGF, My Avatar pic is me on just IGf with no gear and i wasnt on any gear at alkl for a good while and the igf kept me nice and full which surprised me, my strentgh went down some but all in all IGf by itself or just post cycle worked realy well for me