I haven't injected much, except for the glutes. Where do Iinject with the Syntheselen? In the muscle? IF so which ones? I'm not much on injections, and not very experienced at it.
Any intramusclular injections with Synth will work just fine. I found I could push it thru a 27g needle with no problem so there is no need for a big(thick) needle. Check out spotinjections.com for some tips
you can inject it anywhere and there is no need for anything more than an insulin needle as this is a water based product I believe. You learn through trile by era. Sometimes you just have to suck it up and do it, I know I had to.