Yes the dosage will be on the vial. It will say xmg/xml. A lot of prop is painful, but not all of it, totally depends on the gear you have. Mine is not bad at all, but virgin muscle will likely have some pain involved. There are things you can do to potentially minimize that, good luck. I personnaly love pinning, you will lose your needle phobia pretty quick if your gear is worth a shit. Good luck bro...nitro