If you frequently deal with an itchy, irritated scalp that has tons of dandruff, you'll find a saving grace (and serious relief) from all-natural products that are free from artificial fragrances and other irritants like parabens, sulfates and formaldehyde, like Cleure Volumizing Hypoallergenic Shampoo, $12. "It's safe for all skin types and all hair types, as well as color-treated hair, and is cruelty-free," says Bova.

If you're looking for something more powerful to help treat and improve your scalp and keep hair healthy, try Vitabrid C12 Scalp Shampoo, $32, which is packed with safe and effective ingredients such as antioxidant vitamins including zinc oxide, dexpanthenol, menthol and salicylic acid, to strengthen the hair while hydrating and soothing the scalp.