help with insulin pins

[G-PIG]

just got some insulin pins, 28 guage 1/2 inch pin is this long enough for fina injects, dont say you cant do it, you can, minimize scar tissue, is 1/2 long enough for tris and shoulders? im about 10-12% bf

also i got some injectable b12, it looks water based, how mch its 1000ug/ml

help

[PERSIANBOLIC]

I thought b-12 was oil base.

[King Samson]

I am using slin needles right now to shoot fina into the bis. I don't know if it will work in your delts and tris but I would think that it would considering you are 10-12% bf, but I don't know for sure. And yes, b-12 is water based