I seem to lean my hair into wet paint on any surface I paint. Well when I did have hair! For water-based, use fingernails while shampooing. For oil-based, any oil (baby, olive, nivea), again with the fingernails. Something else that works is one of those sponges with a scrubber on the back. Hold one hand underneath, and then rub the scrubber downward along the hair...one direction only. Use blue or white scrubbers only...not the rough green ones.