I'm a heathy young person and I had SMP to cover my FUE scars year ago, I had 3 sessions which all completely faded back to zero each time. I was told by the practitioner that some people's skin and scars cannot accept SMP pigment. Going forward, I'd like to know if I could have these done successfully . I'd like to find a suitable clinic to do this. Is it possible that SMP will work for me or are some people actually immune to it?