Of 65 formulas put to work, here are the ones testers showered with praise.
Best for Shine: Rusk Deepshine Oil Moisturizing Shampoo
Loaded with nourishing argan oil, the fast-rinsing formula removes any dulling residue while imparting a glossy, luminous sheen throughout. “My hair felt squeaky clean but still surprisingly soft,” said a tester.
To buy: $10, drugstore.com.
Best All-Natural: Acure Triple Action Repairing Shampoo
No matter your level of eco-consciousness, this blend of organic argan and pumpkin-seed oils will turn skeptics into believers—and strawlike strands into spun silk. Testers liked the sweet, almondy scent, too.
To buy: $10, target.com.
Best for Brassiness: Oribe Bright Blonde Shampoo
Whether you're a baby blond or a seasoned salt-and-pepper, this violet-tinged rinse brightens your base by nixing any unflattering tones that have crept in. “I use this weekly to keep my highlights fresh,” said a tester.
To buy: $44, birchbox.com.
Best for Volume: Suave Professionals Sea Mineral Infusion Shampoo
“I finally have those effortless, beachy waves without any crunch,” said a tester. Moisturizing sea minerals and salt deliver all-day lift at the crown, even to fine-haired users.
To buy: $4.50, drugstore.com.
Best for Colored Hair: Shu Uemura Color Lustre Shampoo
Yes, it's sulfate-free (though the fluffy lather could have fooled us), but this protective pick also has antioxidants that prevent color from fading in the sun.
To buy: $48, birchbox.com.
Best for Dry Hair: L'Oréal Paris Advanced Haircare Power Moisture Shampoo
Brimming with hydrating ingredients, like sodium hyaluronate, this pearly white cream smooths flyaways and softens brittle ends so hair is “less tangled” and “easier to manage,” said testers.
To buy: $5, drugstores.com.
Best for Curls: Dove Quench Absolute Shampoo
Frizz, snarls, buildup. This velvety cleanser tackles the trifecta of curl offenders with the new “it” oil, buriti. “I had better control over my typically unruly hair,” said a tester.
To buy: $7.50, drugstore.com.
Best for Oily Scalps: Aveda Invati Exfoliating Shampoo
Salicylic acid cuts through buildup and oil (which clog follicles and hinder new growth), and the herbal scent cuts through the senses in a refreshing way.
To buy: $29, nordstrom.com.
Best for Frizz: John Frieda Frizz Ease Beyond Smooth Shampoo
This fuzz-busting formula eschews traditional smoothers, like silicone, in favor of pure coconut oil. The results are sleek—not slick—strands that stand up to humidity.
To buy: $10, ulta.com.