Worked well for a sick youngster I used it on (beardy). Was easy to mix and dispense. You might want to supplement with perhaps some veggi babyfood or calci powder, but otherwise it works well when you need to force feed and pack on the grams. Sadly the beardie I used it for didn't make it, but that was due to an unkown respiratory infection...and not Repta-Aid.
That said, the product worked as desired, and the little guy didn't seem to mind it. I would disgard 6 months after opening, as those little baggies never seal all the way. The syringe that comes with the product works well, however a larger syringe may be desired for a larger animal. 10cc seems to work for adult beardies very well.