Regular rinse out conditioner is formulated to help restore the strength of hair and protect against breakage. Conditioners work by lubricating hair cuticles and neutralizing the negative charge in hair fibers by adding a positive charge. Rinse out conditioners act as a protective coating for your hair, sealing cuticles to prevent breakage. They are best used when they are left to sit for 2-5 minutes depending on the brand you are using.