Keratin shampoo benefits

As more and more brands tout the benefits of keratin in hair care, it’s important to understand how it works in order to choose the right product. This protein naturally produced by the human body is weakened in the hair by the various attacks to which we subject it. Hair dryer, hair straightener, coloring and pollution damage keratin.

Can a keratin shampoo restore their vigor and suppleness to damaged hair? Check out our guide to understanding how keratin shampoo works, and choose the ideal product to revive your hair.

 Our selection of the best keratin shampoos, it’s here

Top 4 rated keratin shampoos

Keratin Complex Color Care Shampoo and Conditioner Set

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L’oreal Liss Unlimited Keratin oil Complex Shampoo


Schwarzkopf – Keratin Shampoo – BC Fiber Force

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Phyto Phytokératine Repairing Shampoo

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What is keratin?

Keratin is a protein present both in the surface layer of the epidermis, but also in nails, body hair and hair. It determines both the shape of the hair, their smooth or curly structure, but also constitutes the component that gives them their strength. While hair is made up of 95% keratin, it does not renew itself and disappears over time, which will gradually weaken it. It is also attacked by smoothing, straightening, and by the successive discolorations it undergoes. Hair lacking in keratin will be easily brittle, coarse and dry.

Keratin has a real protective role thanks to its structure in scales which makes the hair resistant, and it is also this which gives them their elasticity and their suppleness.

The different types of keratin

There are different types of keratin which can come from both animals and plants.

Keratin of animal origin is that contained in the horns and hooves of animals, but also in sheep’s wool, poultry feathers or eggshells. Often present in cosmetics, it is the same as that which is naturally present in humans, and generally in mammals.

Keratin of plant origin, also called phytokeratin, is a protein having a structure very similar to that of animal keratin. These are generally corn, soy or wheat proteins, and not keratin per se, which is only present in animals. Phytokeratin has very good affinities with the hair, but also the skin and the nails because of its proximity to animal keratin.

Beta keratin is a special form of keratin found in birds and reptiles. It is stronger than animal keratin, which is also called alpha keratin.

Why use keratin shampoo?

Our hair is often subjected to treatments which weaken it. If you regularly use a hair straightener or hair dryer, or regularly bleach, a keratin shampoo might work for you. It can help you protect your hair against the attacks it will undergo, and also restore shine and softness to damaged hair. A keratin shampoo can also help if you are looking to straighten your hair or tame your frizz. However, it does not actually repair the hair, but rather temporarily fills in the places where the keratin is damaged. The effects of keratin shampoo therefore disappear if the treatment is not regularly reproduced.

What types of hair is keratin shampoo made for?

The keratin shampoo is particularly suitable for people with frizzy hair and who have straightened, to people whose hair is damaged by chemical treatments, and also to counter porous hair. Dry hair can regain shine and softness thanks to this contribution. Keratin, however, can weigh hair down, making it stiffer. It is therefore not ideal for people wishing to maintain plump and flexible curls.

Keratin shampoo, ideal for maintaining Brazilian smoothing

Keratin shampoo can be useful for maintaining and making Brazilian straightening last . This smoothing fixes the keratin around the hair to give it softness and shine. Using a keratin shampoo to maintain it helps prolong the effects. As long as you opt for a mild shampoo, it will thus preserve the keratin envelope created during smoothing and make it last for several months.

Which composition to favor for a keratin shampoo?

It is important to choose a mild shampoo to maintain your Brazilian smoothing. First of all, avoid keratin shampoos that contain sulfates. They are aggressive with the hair fiber, and will tend to both remove the keratin deposited around the hair fiber if you have performed a Brazilian straightening. Sulfates make the keratin supply in your shampoo less effective. So opt for a keratin sulfate-free shampoo containing as many natural ingredients as possible.

The best keratin shampoos according to user reviews

We have selected for you various keratin shampoos, adapted to the different needs that your sensitized hair may have.

Keratin Complex Color Care Shampoo and Conditioner Set

Keratin Complex Color Care Shampoo and Conditioner Set

 Keratin Complex Color Care shampoo is designed for hair prone to dryness, which has lost its shine and suppleness. Enriched with keratin, it promises to instantly hydrate and strengthen the hair while smoothing the hair fiber for a silky touch result. Available in the very practical 8oz format, its soft and pearly texture makes it pleasant to use, and the Keratin Perfection shampoo visibly strengthens the hair from the first wash. However, it contains sulfates, and is not ideal for maintaining Brazilian straightening.

L’oreal Liss Unlimited

L’oreal Liss Unlimited Keratin oil Complex Shampoo 

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Created to meet the needs of hair that has recently undergone Brazilian straightening or coloring, L’oreal Liss extreme is a shampoo without sulfates. It is enriched with keratin, but also with silk proteins which help to facilitate styling. Its composition targeted to not attack the hair improves discipline and restores vitality to the hair. Available in 50.7 oz, it allows you to do many washes with a bottle, to maintain a Brazilian smoothing over the months.

Schwarzkopf BC Fiber Force

Schwarzkopf – Keratin Shampoo – BC Fiber Force

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Schwarzkopf’s BC Fiber Force Keratin Shampoo targets severely damaged hair that has suffered bleaching, repeated straightening, or suffering from the heat of the hairdryer on a daily basis. Its formula is designed to repair damaged hair by strengthening the hair bonds damaged by the various treatments undergone. This range promises to make hair more resistant to breakage thanks to a supply of keratin penetrating inside the hair, for in-depth repair.

Phyto Phytokeratin

Phyto Phytokératine Extreme Shampoo

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Phytokératine Extreme shampoo from the Phyto brand is intended for the most damaged, dry and brittle hair. Gentle on chemically treated hair, it contains no sulfates. It contains 44% peony extract for a calmed scalp and softened hair. Enriched with vegetable keratin, baobab oil and sapwood butter, this very gentle and nutritious keratin shampoo will revive hair damaged and dried out by heat and chemical treatments.

Natessance Repairing Fortifying Castor

Natessance Capillaire Shampoo With Castor Oil and Vegetable Keratin

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Designed with 96% natural ingredients, Natessance keratin shampoo promises a gentle wash. It does not contain parabens or sulfates so as not to attack already damaged hair. Containing castor oil known for its repairing properties and vegetable keratin which strengthens the hair fiber, it provides care to your damaged hair. This sulfate-free keratin shampoo effectively cleanses the hair while restoring shine and vitality.

L’Oreal Professionnel Pro-Keratin

L’Oréal Professionnel – Restoring Keratin Shampoo for Fragile Hair


Opt for L’Oreal Professionnel Pro-Keratin shampoo if your hair is damaged and sensitized by external aggressions. Its formula including vegetable keratin is designed to rebuild the structure of your hair, while protecting it. The hair regains softness and suppleness from the first uses of this keratin shampoo. It includes sulfates, and is therefore preferred for hair that has suffered discolorations or aggression from the straightener, rather than to preserve and maintain Brazilian smoothing.

Revlon Equave Hydro

Revlon Equave Hydro Detangling Shampoo


This keratin shampoo from Revlon is suitable for all hair types. Its gel texture is pleasant to use and provides a feeling of freshness when used. Its formula enriched with keratin promises to make your hair more shiny and silky. Revlon Equave Hydro will provide hair weakened by discolorations or perms with gentle care that will quickly improve their appearance. It will make disentangling and styling easier thanks to the keratin which smoothes the hair.

Reviews of keratin shampoo in general

More and more present in various hair care products, keratin is an interesting product for people whose hair is weakened or damaged. This temporarily fills any gaps in keratin that your hair may have, making it softer, smoother and shinier. A real second life for hair that has undergone aggressive chemical or thermal treatments.

Using a shampoo enriched with keratin is also a good way to maintain and prolong the effects of a Brazilian straightening, as long as you choose it without sulfates so as not to attack the keratin layer deposited around the hair fiber.

However, be careful not to abuse shampoos containing keratin. If these can be very effective in cure, too frequent or too close washing could overload the hair in keratin. To let them breathe between the different treatments, it is best to adopt this type of shampoo occasionally during a treatment or to alternate with another mild shampoo that will wash your hair without damaging it.