injecting into the shoulder???

im planning on doing a deca/winny cycle, and want to inject the winny into my shoulder. the problem is that i do a lot of work in the sun (landscaping). will the shots leave a mark (if done properly). this is my first cycle, so im not sure if my tissue scars easily with needles.
thanks for the help.

No marks. Don't sweat it.

It won't be noticable if the shot is done right. There is a slight chance that you may bruise depending on what type of skin you have and how much you move the needle around, but most likely you'll be fine...