In this article, I’ve reviewed the top sulfate free shampoos for coloured and chemically straightened hair that has undergone keratin or smoothening treatments.

It is not just sun and pollution that damage hair quality and texture, it is also chemicals like parabens and sulfates.

Sulfate in particular attacks the scalp and inflames it. It makes hair weak at the roots.

It causes premature hair graying too. It damages hair by making them dry, dirty and fragile.

Such hair are coarse, dull and weak. The biggest suppliers of sulfate to hair are chemically loaded shampoos.

However, there are also safer options that are devoid of sulfate.

I have handpicked 14 best sulfate free shampoos that can pamper natural, coloured as well as chemically treated hair.

How I tested the top sulfate free shampoos for coloured and chemically straightened hair?

I have naturally curly hair that I often straighten and smoothen using keratin treatments. I also colored my tresses often. So I needed a shampoo that wouldn’t be too rough on my hair that is already damaged due to all the chemicals.

I used these shampoos on my own hair and then rated them based on certain factors that I’ve listed below. I then gave them a score out of 1-5. These factors include:

  • Gentleness – Despite being sulfate-free some shampoos might have ammonium lauryl sulfate and other surfactants.
  • Color Protect – I also looked for UV protection formula in the shampoo that prevents hair color loss.
  • Damage Repair – These shampoos should help with repairing damaged strands as chemical treatments and coloring always removes proteins from hair.

Sulfate Free Shampoos For Coloured And Chemically Straightened Hair

1. Naturoli Extreme Soap Nut Sulfate Free Shampoo For Normal To Oily Hair

sulfate free shampoo for chemically straightened hair

What I liked about this shampoo is that it’s very lightweight. Most shampoos for chemically-treated hair often are very rich and nourishing so they can weigh hair down.

But not this one.

This organic sulfate free shampoo reduces frizz and moisturizes the scalp. It controls oil formation and thus, oil and sebum accumulation is reduced.

So if you’ve got an oily scalp and color-treated hair it’s perfect for you.

However, this doesn’t mean it causes scalp dryness because it does not remove the hair growth essential oils. It makes my hair bouncy by adding volume to them right from the first wash.

It is also devoid of parabens, artificial fragrance, alcohol and glycol so you can use it without fear if you’ve got sensitive skin.

I also liked that it is non sticky and easily washable, making it great for fine, low porosity hair.

The only issue I had with this shampoo is that it may be too drying sometimes.

Pros:

  • Good for oily scalp as it controls sebum production
  • No artificial fragrances or alcohol that makes it great for sensitive scalp
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Cons:

  • Can be too drying on scalp already suffering from dryness

My Ratings:

  • Gentleness – 4.5/5
  • Color Protect – 3.5/5
  • Damage Repair – 4.5/5

2. Amazon Secret Sulfate Free MuruMuru Anti-Frizz Keratin Shampoo for Normal to Dry Hair

best shampoo for chemically straightened hair

If you want a sulfate-free shampoo that is still clarifying you should check out this one.

Yes, this shampoo is free of laureth sulfate but it still contains milder surfactants that help cleanse your hair.

I also like the natural ingredients in the formula like Vitamin A, Berry Extracts and Vitamin E. I’ve found that these help the shampoo hydrate my scalp, soothe my itchy scalp and cools it down.

What I liked a lot about this shampoo is that it hydrated my hair but it didn’t leave my hair greasy at all.

Chemically straightened hair can be prone to oiliness as the texture makes it easier to distribute your hair’s natural oil through the strands.

I also loved that it restores the normal pH level of the scalp and doesn’t disturbs it any further. The chemicals from straightening can really mess up your scalp’s pH so this is a very good thing.

I’ve also found that it reduced my dandruff by controlling dry, flaky scalp skin.

Pros:

  • Murumuru butter moisturizes scalp reduces dandruff and dry flakes
  • Helps control pH levels of the scalp disturbed by chemical treatments

Cons:

  • Can be too clarifying for very dry hair type

My Ratings:

  • Gentleness – 4.5/5
  • Color Protect – 4.5/5
  • Damage Repair – 4.5/5

3. L’Oreal Paris New Eversleek No Sulphates Shampoo, Smoothing and Moisture, Respects Hair Fiber, Controls Frizz

best shampoo for chemically treated hair

This sulfate free shampoo from the house of L’Oreal caters to the needs of women with frizzy hair like mine. Even with chemically straightened hair, frizz can be a huge problem due to damage.

So I was glad to see the Marula-oil enriched formula of this shampoo helped smoothen my locks in just one wash.

And despite being sulfate-free, it cleanses the scalp by removing toxins, sebum, free radicals and dirt.

It deeply moisturized my dry hair and reduced the scalp from itching as well. The resulting hair are super smooth and bouncy.

I also loved the fact that it doesn’t contain harsh metallic salts that are a common component of most shampoos.

Pros:

  • Marula oil helps control frizz and moisturizes hair
  • Salt-free formula makes it suitable for keratin-treated hair
  • Contains UV filters that helps it protect hair color from fading

Cons:

  • None

My Ratings:

  • Gentleness – 4.5/5
  • Color Protect – 4.5/5
  • Damage Repair – 4.5/5

4. Khadi Natural Herbal Shampoo, Amla And Bhringraj, For All Hair Types

sulphate free shampoo for smoothened hair

This unique herbal shampoo is devoid of not just sulfates, but also parabens. It manages and regulates oil formation. Thus, it neither dry the hair nor does it make the scalp sticky. It gently removes dandruff, sebum and dirt from hair and makes them frizz free. It can easily detangle hair knots without breaking the hair.

5. OGX Moroccan Argan Oil Shampoo

can i use normal shampoo after straightening

This amazing sulfate free shampoo is an ideal pick for women with dry hair. It contains Argan Oil that not just moisturizes dry hair strands, but also protects hair from sun damage. Thus, this shampoo removes frizz and makes hair smooth and moist. It also reduces split ends and dandruff caused due to scalp dryness.

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6. Schwarzkopf BC Color Freeze Sulfate Free Shampoo

schwarzkopf shampoo for smoothened hair

This sulfate free shampoo from the house of Schwarzkopf handles damage prone coloured hair easily. Its unique colour seal formula increases the colour durability, alongside keeping the hair radiant and glossy. It also cools down the inflamed scalp and reduces the acidic conditions. It hydrates and deeply moisturizes every single hair strand. All in all, it keeps the colour intact without letting chemicals, sun and pollution deteriorate the hair texture.

7. L’Oréal Paris EverCreme Sulfate Free Deep Nourish Shampoo

keratin shampoo for straightened hair

This advanced colour seal shampoo increases the shine of coloured hair. It repairs the split ends and improve the hair texture. It makes coloured hair bouncy and lustrous. It contains natural extracts of rosemary and juniper oil. These ingredients soften hair and detangle knots.

8. Matrix Biolage Color Care Shampoo

Sulfate Free Shampoos For Coloured And Chemically Straightened Hair

This sulfate free shampoo from the house of matrix is also devoid of artificial dyes and parabens. Thus, it seals color without damaging or drying the scalp and hair. It protects the shine and colour without letting it fade for almost 3 weeks. It makes hair bouncy and lustrous too. It restores the scalp’s pH level. Thus, it reduces itching and dandruff too.

9. Royal Locks Clean Curl Shampoo For Color Treated Hair

best sulfate free shampoo for chemically treated hair

Since this Sulfate Free Shampoo moisturizes curly hair, it is an amazing pick for chemically coloured permed hair too. It is loaded with the goodness of minerals, proteins and essential oils. Proteins strengthen keratin that makes damaged hair stronger. Minerals and essential oils hydrate the dry locks and increase the shine of the colour without letting it fade for a month.

10. De Fabulous Reviver Hair Repair Shampoo For Chemically Treated Hair

best sulphate free shampoo for straightened hair

Perming, hair smoothening and hair straightening work on the concept of breaking the hair’s normal natural protein.

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In the absence of keratin, hair become brittle and are more prone to tangling, breakage and sun and pollution damage. The De Fabulous Reviver Hair Repair Shampoo moisturizes the strained hair strands and scalp.

It is loaded with high amounts of soy and wheat protein. The external boost of protein makes the brittle chemically treated hair stronger.

11. Kerastase Discipline Bain Fluidealiste Sulfate-Free Shampoo

is ion keratin shampoo sulfate free

This sulfate free shampoo for chemically treated hair does the job of a conditioner too. It slowly relaxes chemically treated hair and restores the normal essential oils. It reduces scalp irritation too.

This reduces the chances of hairfall, hair breakage and dandruff. It increases the life of straightened hair and maintains their gloss. And it deeply nourishes the locks of Permed hair and keeps them silky, bouncy and smooth.

12. Richfeel Sulphate Free Shampoo

what does sulfate free do to your hair

This is an ideal shampoo for straightened hair that are thin and weak. It reduces hair fall and hydrates the scalp.

This promotes hair growth and reduces hair fall. It is also an exceptional choice for hair that become dry post straightening. It increases moisture quotient. Thus, dryness and frizz get reduced.

13. EO Botanical Hair Care Sulfate Free Shampoo

How do I wash my hair after permanent straightening

This shampoo is loaded with the goodness of hibiscus and coconut. These ingredients nourish chemically treated hair by giving it a boost of external keratin. It removes oil, dandruff and dirt not just from the strands, but also the scalp.

14. OGX Ever Straight Brazilian Keratin Therapy Shampoo

What shampoo is best for Rebonded hair

This sulfate free shampoo is loaded with the goodness of antioxidants, coconut oil, avocado oil and cocoa butter. It makes straightened hair sun proof because it contains antioxidants that protects hair from UV damage. It restores the moisture of chemically straightened hair by deeply moisturizing the scalp.

The above listed 14 sulfate free shampoos are some of the best shampoos that reduce the chances of hair damage. They gently take care of your locks, waves and colour without causing any side-effects.

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