Hi everybody, I am wondering if anyone has any experience of the needleless injection systems such as the dermo-jet one? I stopped injecting my scalp when the bald areas became way too extensive, but I try to maintain my eyebrows by injecting cortisone about every 4-6 weeks. It's horrendously painful though, and I was wondering if these needle-less systems were less traumatic to use. They are mainly used by diabetics, but they can be used for steroid also. Any experience or thoughts?