I think it is multi-use. I mean, it's a laser, and you lose no blood. Don't see how it can't be use multiple times. Maybe it can even hold 2 or more different vaccines at a time, it would be a LOT better than carrying a set of syringes for every injection.baggyn said:Its cool and all but syringes are far cheaper, unless its multi-use i can't see it replacing the syringe any time soon