If I have a 2mg vial of TB500, how much bacteriostatic water do I need to add for a proper ratio? Also, if I am planning on dosing at 2mg a week for 4 weeks do I need to inject the whole 2mg vial each week? Or does the water dilute it. With that being said, I plan on going with 29 gauge needles, not sure how many cc's in the syringe are needed for each week. The most I can find is 1cc with the 29 gauge.