No they don't last long and are costly. I'm a healthy dude and don't like getting to keep getting shots in the face. I've been doing research and going to an auto immune diet, which is crazy.
It's a genetic disease. Using primo might speed up how fast you would get it if you are genetically pre-disposed to it but using primo by itself will not make you get the disease.
Since you know that you are genetically pre-disposed to getting the disease, you will want to stay away from primo.