Benefits to Site of Injection?

[Bonaparte]

Any effect is from inflammation and the buildup of scar tissue at the site.

[kelkel]

This is so stupid, if it worked everyone would inject into the penis

Bingo.

Any effect is from inflammation and the buildup of scar tissue at the site.

This.

[Wizwell]

Could it be that the person wanting delt growth, injects in the delt and then target trains the muscle with some extra attention? This might convince the person localized growth was successful. Personally, I am also on the myth bandwagon.