8 Best Keratin Shampoos & Conditioner, According to Hairstylists

This lightweight keratin shampoo earns our top spot because it strengthens and smooths hair without flattening volume—a rare balance, especially for fine hair. Cavalcante recommends it for its weightless feel, noting that it reinforces strands without overly coating them. The formula combines keratin and biotin to support structure and resilience while chia seed oil and hemp extract add softness, movement, and moisture. After consistent use our testers say hair looks silkier, shinier, and is more resistant to breakage. “My hair actually feels fuller after using it. Not just thicker, but lighter too,” says Glamour contributor Neha Tandon.“It’s as if I finally found a shampoo that knows I want volume and shine. I’ve been using it regularly for years.”

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Key ingredients: Keratin, biotin, chia seed oil | Safe for color-treated hair: Yes | Size: 10 fl. oz.

Best Drugstore: OGX Keratin Oil Shampoo

• What we love: Great frizz control at a affordable price; subtly sweet scent
• What’s worth considering: Can build up with frequent use if your hair leans oily

This $11 drugstore staple is infused with luxury ingredients including keratin and argan oil—two heavy hitters for smoothing and strengthening—which makes it surprisingly good at taming flyaways. While it won’t reverse severe damage, it works well for generally healthy hair that needs extra polish and softness. Testers liked its subtle sweetness and noticeable frizz control that holds up even in damp weather. “Frizzy hair is something I struggle with because I tend to use a lot of heat on my hair, and this shampoo helped so much with my texture post-styling. It lathers nicely, feels like a luxe shampoo, and leaves my hair feeling extremely clean and smooth, and I didn’t feel the need to use additional smoothing products like usual,” says Glamour contributor Sarah Cassuto.

Key ingredients: Keratin, argan oil | Safe for color-treated hair: Yes | Size: 13 fl. oz.

Best for Frizzy Hair: Kérastase Discipline Bain Fluidealiste Shampoo

• What we love: Makes hair soft and shiny; smells nice
• What’s worth considering: Pricey

This anti-frizz shampoo is highly recommended by Miguel Luis, a hairstylist at Rita Hazan Salon, for all hair types (particularly thick and coarse) that are prone to flyaways. “It has keratin to restore hair fibers and surface perfectors to soften uneven texture,” he says. Combine all that with the velvety silk texture of the liquid that lathers into a soapy cleanse and you’re left with strong, smooth strands that are noticeably flyaway-free and frizz-free. This pick is also sulfate-free and safe for color-treated hair types that have damage from bleaching or dye. “I noticed less frizz overall and my hair was shiny and tangle-free post-wash. I was also impressed by the smell; it lingered on and went well with the typical conditioner I use.” says Glamour contributor Paton Hardy.

Key ingredients: Keratin | Safe for color-treated hair: Yes | Size: 8.5 fl. oz.

Best for Curly Hair: It’s a 10 Miracle Shampoo Plus Keratin

• What we love: Leaves hair soft and silky without heaviness; noticeable frizz control after just one wash; a little goes a long way
• What’s worth considering: Relatively steep price

This rich, creamy formula is ideal for curls that need both strength and slip. This heavy-duty keratin formula forms a thick, creamy lather that coats hair during your wash. You can instantly feel a difference in the texture of your curls once you wash it out—hair is a lot bouncier and smooth. Castor seed oil and wheat proteins give hair a velvety finish, making it easy to style post-wash without breakage or clumps. Despite its richness, it doesn’t collapse curls or weigh down roots, making it a strong choice for heat-styled or chemically processed curls. We also like that this shampoo comes in a whopping 33.8 fl. oz. bottle, which makes it last super long in your shower caddy. It’s also color-safe, sulfate and paraben-free, and especially useful for someone who heat-styles regularly and wants to reverse damage. “I’ve been reaching for this shampoo any time my curly hair feels totally fried, especially in the summertime or after a vacation on which I’ve been blow-drying and heat-styling my hair more than usual,” says Tandon. “Paired with the accompanying serum, it leaves my ends smooth without making the roots on my fine hair limp, which feels like witchcraft,” says Tandon.