Today I got out a brush that I hadn't used in a while and realized it was really dirty and gross. So I grabbed some old shampoo I don't use and gave it a wash. I think we focus so much on washing out hair and ect. that sometimes we neglect to wash our combs and brushing. No use washing if ur just gonna use a dirty comb and brush afterwards. So grab that bottle of old shampoo that didn't work for your hair or a cheapie bottle of suave clarifying poo and use it to wash ur brushes and combs. I've also read that hair imbedded in your brush can cut the hair on your head. So it's a good idea to keep hair out of brushes and rinse them once a week with shampoo! U can use ur dryer to dry brushes in a quicky but be careful not to melt nylon bristles with a super hot dryer. Just a tip! Chayil!