couple things though , i never heard of gh being reconstituted in bw- serostim uses reg water , humatrope and genotropin use water with a preservative added, m-cresol for huma- forgot what genotropin uses--this could be risky (using bw)but maybe im wrong , bw does destroy igf-1. and then i seen somewhere that because gh protein chain is so long, 191, it mite be destroyed passing thru a 28 or 29 guage insulin pin. just ordered some 27 insulin pins to be on the safe side.