Hello, sir!
We use high quality ingredients and best sesame oil base we could found and I know, our clients use insulin syringes for injections in delts for sure.
I ,myself, have used insulin syringes for testosterone propionate and enanthate, and everything worked out well, however, I returned to regular syringes - I do not have the patience to fill the insulin syringe and inject for so long - it driving me crazy
If you want to try:
1) find an insulin syringe that is suitable for this (there is producers, who also write the thickness of the needles).
2) Shift the skin and injection site to escape "oil leak"
3) Be sure to warm up the oil before injecting. It improves fluidity and improves absorption at the injection site
Yes, i cannot give a brief answer, hahah
Thank you , It was a useful question.
Have a nice weekend, sir!