BPC 157 and TB 500 question on how to store

Just recieved BPC 157 10mg vial and a TB 500 10 mg vial as well from protide health and it came with bacteriostatic water 0.9 benzyl alcohol. I wont be using it for a few days. Can i leave it on the counter for a few days or should i store it in fridge or freezer til ready to use? I know once i mix it i have to put it in fridge right? And the water stays out? Sorry still little new to all of it.