23 is way too massive for TRT. I've used 30g with TRT before. Honestly shouldn't be using anything bigger than a 25g. 25g-28g has been fine for me for UGL.What size needle do y’all use for injecting? I’m used to 23 gauge with my trt but this is my first time going UGL and I tried up to 25g, can’t seem to get liquid to come out of syringe. I did also get some new bigger syringes, maybe the syringes are just bunk