@loriesco, hi. i use the same pen needle for ALL of my insulin injections. being for subcutaneous. just under the skin. i'm happy you like it. if it keeps working then don't change it. but if you find it difficult to do. you can get a 4mm ultra fine but with a 28 or 26 gauge needle. which will work with a thicker medication. if need be. i read you inject into your leg. but are you able to inject into the buttocks or stomach? i do the back of the arms, buttocks, thighs and stomach. you just keep rotating the spots. one other thing i hope you have a steady hand for this. if you have tremors in both hands it can be difficult. i do. and it takes both hands to do the injections. either way, good luck. Daniel 💙💙