syringe size

[xnikox]

I just did a search and couldnt find hardly any good info on which size syringes i should be using. Im going to be injecting B12 ed and 250 test 2x weekly so what size is the most popular and will be easiest to use and cause the least injection site pain???

[Janus]

I draw Test with 20 gauge, shoot with a 25. Can use a 23.
B12 is not oil, so you can prolly use a 27, maybe a 29 but I'm not sure.