Whether you want your wavy hair to maintain its effortless texture or are looking for a sleeker style that's less voluminous, you can't go wrong with a shampoo that's m.o. is to control frizz. "For girls that rock their naturally wavy hair and want a controlled look, use Kerastase Discipline Bain Fluidealiste Sulfate Free, $29.99," says Ambroise. "It tames frizz, protects against humidity and disciplines the hair while providing a smooth, soft finish."

If you're hoping for even more definition and for that beachy, saltwater look, Bova suggests Bumble and Bumble Surf Foam Wash Shampoo, $26. "The mixture of sea minerals in this formula gives volume and wave definition and the botanical blend gives hydration and softness."

Even if you're committed to regular trims, long locks typically require a lot of work to keep them healthy and prevent breakage. That's why it's smart to stick with a moisturizing shampoo that contains hydrating ingredients to strengthen and restore, like Shea Moisture Jamaican Black Castor Oil Strengthen, Grow & Restore Shampoo, $12.99. "Castor oil is synonymous with hair growth and strength, as is vitamin-rich shea butter," says Bova. "The botanical blends keep the hair strong."

If your long locks tend to be on the oily side, especially around your scalp, but dry on the ends, Ambroise recommends a cleansing oil shampoo like Shu Uemura Cleansing Oil Gentle Radiance Cleanser, $42.50. "It draws out oil where oil is excessive and penetrates where oil is needed," she says.

If your hair is super fine, you're probably looking for a shampoo that can deliver some serious, runway-worthy volume. That's why Bova always reaches for Jason Thin-To-Thick Extra Volume Shampoo, $9.25, when styling his fine-haired clients. "Hair-strengthening biotin and panthenol wrap around the entire hair shaft to boost volume and increase hair cortex elasticity for less breakage," he says. "Natural plant proteins add luster and bounce so that your hair looks and feels naturally thicker with a healthy dose of shine."

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.