When you buy through links on this page, HuffPost may earn a commission that helps support our journalism. Every product is handpicked by the HuffPost Shopping team, and prices and availability are subject to change. If you’ve ever dutifully shampooed your hair only to be met with greasy roots and flaky strands post-shower, you feel my pain. I hate the feeling of oily hair and itchy dandruff, so whenever shampoo day fails to actually clean my hair, I’m equal parts frustrated and uncomfortable.