Hi again... have a read through the ``Red Tones`` thread where I left a link to a UK-based company which sells `Enhance` leave-in conditioner which I use all the time. I`d be very wary of using shampoos not formulated for system hair.... you`ll shorten the life of the system.... have a read of the thread `So you think your shampoo is doing a good job do ya` down the page there as it outlines the issues with `normal`shampoos etc. Regards for now... Paul.