Paraliminals with holosync allow you to go into a more relaxed state and producing certain brain wave patterns. They are beneficial for deepening your experience of paraliminals and at times, making them work better. This is just what I have come to learn.
And yes they do have a self-sabotage paraliminal it's called Automatic Pilot used to eliminate negative self talk and negative thought in general.
http://www.learningstrategies.com/Paraliminal/AutoPilot.aspHope that helped.
Cheers,
Dorian