How do non-rinse conditioners work? These conditioners usually contain light polymers that smooth the hair, but do not unnecessarily burden the hair. Thanks to the spray, you spray a thin film on the hair, which fills the cracks on the hair structure with nourishing proteins, thus supporting the shine of the hair and reducing hair spillage. You will appreciate these products when you have little time to wash your hair. They are also a popular remedy for young children if their hair sticks frequently.