Yes, you can inject Test E subcutaneously. However, with subcutaneous injections, tolerability largely depends on the injection volume and how your tissue reacts individually.
So it’s better to start with around 0.2 ml and see how the injection site reacts over the next few days.
Pay attention to any pain, redness, swelling, itching, or significant lumps. A small temporary lump after a subcutaneous injection of an oil-based solution can happen because the oil is absorbed gradually.
If 0.2 ml is well tolerated without any significant local reaction, you can increase the next injection to around 0.3 ml. Then follow the same principle — 0.4 ml and then 0.5 ml, checking how well you tolerate it each time.
So 0.5 ml subcutaneously may be an acceptable volume, and then 3 injections per week would be enough for you, but it’s better to work up to it gradually rather than starting with that volume straight away. If you get a significant local reaction when increasing the volume, it makes more sense to go back to a smaller volume and, if necessary, split the required dose into several injections.
By the way, I use a slightly different method — I draw 0.5 ml into an insulin syringe and inject it intramuscularly into the glute. I don’t have much fat on my ass, and I assume some of it goes into the muscle and some into the subcutaneous fat. At the same time, the thin needle doesn’t cause the kind of tissue damage that needles used for intramuscular injections do. I have absolutely no problems the next day. But I specifically choose the glutes because if I inject even 0.2 ml into my shoulder, my shoulder hurts for 3 days.