You just spray some in your hair and then massage through with your fingers. The difference will be noticeable - first time I sprayed it in my hair it was really looking dull after not being washed for a few days and it instantly looked better. Imagine what hair looks like the day after you washed it. My hair simply felt lighter.
I really like the smell of this as well, the coconut smell is so good. My sister has the cherry scented one and that one doesn't smell bad either. If you're tired of constantly needing to wash your hair to keep it from looking dull or just want to freshen up the look of your hair - this is a lovely product.