The frizzier your hair is the more conditioner you need – to leave in that is. The next time you’re in the shower rinsing conditioner from your hair, remember this trick: Don’t rinse all of it out. Leave some conditioner in. If you find you’ve rinsed your hair completely, add some conditioner once out of the shower. Frizzy hair is a sign your hair needs moisture and as long as your conditioner isn’t laden with mineral oil, petrolatum and heavy silicones, it will provide your hair with the moisture it needs.