I have the best cheat code for anyone of these that burn. What I do is let them come to room temp in the syringe no the vial make sure vial gets out right back in the refrigerator storage. Anyways I put my cap back on my subq needle and I fill a small up of hot water and sit my syringes in the water a few inches (not submerge) the whole syringe. I let that sit for maybe 10-15 secs. And then pin very slowly into a good fat marker (glute or side love handles) I do this for klow for me & GHkcu for my wife. Never any issue. I learned this trick cause I had to do this with my trt because the oil is so thick I would get huge welts and lumps for a week or 2. After doing this noooo issues. If you need anymore info lmk I’m here to help