Does not weigh you hair down. This leave in conditioner is sooo nourishing. I love how it makes my hair feel sooo soft and shiny after. Ive been using this 3x a week for two weeks leaving it in over night each time. My hair is very very damage and dry to start with and this leave in conditioner has helped my hair so much. My hair now feels soft and hydrated. My ends feel much better than it was and this spray does not weigh your haird down. I have super straight thin strands of hair and my biggest concern with hair conditioner and this leave in conditioner was it weighing your hair down so much. This one does not do that and i am going to keep using it for optimal results. A little goes a long way so this will last you awhile. Overall great buy and I highly recommend.