The 9 Best Sulfate-Free Shampoos For Keratin Treated Hair

Sulfate-Free shampoos are getting more and more well known in the beauty community. It’s great for keratin-treated hair. It doesn’t strip out the natural oils from your hair. I have used many different brands throughout the years, and after all those shampoos, I have made the best list.

These shampoos work for all hair types, which is really great; just make sure to find the shampoo that works the best for you. When I started looking for a sulfate-free shampoo in the past, it was pretty hard to find one that actually worked for my keratin-treated hair.

I really wish someone had made this list years ago for me, so I didn’t have to test all these shampoos. Let’s get to the list and find the best shampoo for your keratin-treated hair.

Table of Contents

Why You Should use A Sulfate-Free Shampoo For Keratin Treated Hair

When you’re going for a Keratin treatment, I always advise you to use a sulfate-free shampoo for the best and longest results from your treatment. I have had many treatments like that in the past, and the best way to keep your hair healthy is to use a sulfate-free shampoo.

What you have to keep in mind is to find a shampoo that suits your hair type. If you have very dry hair, look for a shampoo that works for dry hair and not oily. It sounds pretty normal, but a lot of people make this mistake and especially beginners that are just starting out with keratin treatments.

1. L’Oréal Paris Hair Care EverSleek Keratin Caring Sulfate-Free Shampoo


Pricing: $$
Rating: ⭐⭐⭐⭐⭐

The shampoo from L’Oréal is known worldwide if you haven’t heard about this. You’re really living in a cave. I have been using this shampoo for almost 3 years now, and every time I go for a keratin treatment, this is the shampoo I always use after.

What I like about this shampoo is that it’s extremely pleasant when applying to my hair and doesn’t strip out the natural oils. It makes my hair incredibly soft and smooth; I can pretty much go 4 days without washing my hair, it won’t get greasy at all.

If you haven’t used this shampoo, you’re really missing out. Finding good hair products is difficult, and especially when you went for a keratin treatment. This sulfate-free shampoo will do the job, and even more, at first, you’ll notice that your hair will get smoother.

After a couple of uses, your hair will almost be silky smooth, which one of the benefits when using this shampoo.

2. Bellisso Keratin Shampoo and Conditioner Set


Pricing: $$$
Rating: ⭐⭐⭐⭐⭐

The shampoo from BELLISSO comes in a set with the conditioner. That’s great if you’re looking for a set that can treat your hair. What I like about this shampoo is that it contains natural proteins that restore shine while also giving your hair some extra shine.

Another plus is that the conditioner goes very well with the shampoo. The conditioner works excellent for keratin-treated hair. Another plus is that the shampoo is paraben and cruelty-free, which means there aren’t any harsh chemicals inside that could damage the hair.

This shampoo also has Morrocan oil inside, which is one of the best ingredients for treating the hair. What I do recommend is to only use this shampoo once every 2 days because you don’t want to overuse it.

Overusing shampoos can be really bad for the hair; it will strip out the natural oils from your hair. That will overproduce oils, which makes your hair very greasy.

3. Keratin Complex Color Care Shampoo


Pricing: $$$
Rating: ⭐⭐⭐⭐⭐

The shampoo from Keratin Complex is the best sulfate-free shampoo for color-treated hair. It’s one of the better brands out there for keratin and color-treated hair. When you start using this shampoo, it’s required to not wash your hair 3 days after using this.

That’s sounds bad, but it actually isn’t. After the 3 days, you’ll notice a huge difference, that’s what it did for me, and my hair got a lot smoother. It was pretty frustrating not to wash my hair every other day, but over time, you’ll get used to it.

It’s better than most of the other sulfate-free shampoos for keratin treatments out there. This has always been in my top 5 and will continue to be there.

The only downside when using this shampoo is that there’s no lather, which can be a little annoying. However, it does the job, so you don’t have to worry about that.

If you’re considering buying this, I highly recommend it. It has done wonders for me, and you won’t regret buying it.

4. Natural Organic Moroccan Argan Oil Shampoo


Pricing: $$
Rating: ⭐⭐⭐⭐⭐

This sulfate-free shampoo is one of the most popular ones for keratin-treated hair. The shampoo is highly praised by the beauty community, which must be a good sign, so I decided to try it myself. I must say that it didn’t disappoint me and I have no regrets buying this.

It works great for all hair types, which is great, and it does the job very well. It makes your hair stay smooth for a long time while also giving it some volume.

What I like about this shampoo is that it’s not overpowering, and it leaves the hair very clean. You only need a tiny amount of this for it to work. Even if you have very long hair, you don’t need much, and that’s the best thing about this.

The shampoo will last you between 4 to 6 months when used 3x a week. That’s a very long time, and it will save you money in the long run.

If you’re thinking about buying this, just give it a try, and you’ll see how good it actually is. One of my friends just recently started using this, and she loves it. Her hair improved significantly while also keeping it healthy, and that’s the most important key when looking for a good shampoo.

5. Damila Sulfate & Salt-Free Shampoo


Pricing: $$$
Rating: ⭐⭐⭐⭐⭐

The shampoo from Damila is one of the better sulfate-free shampoos for keratin-treated hair. The reason is that this works for all hair types while also providing the hair with natural ingredients. It literally brings your hair back to life, which is what it did for me.

I have been using this for about 3 months now, and it works great for a smooth and silky look. The hair will stay like that throughout the day. Another plus is that the shampoo has mild surfactants that won’t strip away the keratin treatment.

Even if you get a Brazilian blowout, this sulfate-free shampoo works great. A lot of my friends use this shampoo because it actually does the job and won’t damage the hair at all.

If you haven’t tried this yet, I highly recommend you trying this out. If you won’t, you’ll never know what kind of results you’ll get.

6. Fiora Naturals Moroccan Argan Oil Shampoo


Pricing: $$
Rating: ⭐⭐⭐⭐

The shampoo from Fiora Naturals also comes with a conditioner, which is great. This shampoo is sulfate and paraben-free, and it works for men and women. Another plus is that it works great for color-treated hair, so it literally works for all hair types.

What I like about this shampoo is that it’s very moisturizing and gives your hair a lot of volumes. It’s one of the better shampoos in the market right now when you’re looking for a keratin-treated and sulfate-free shampoo.

This shampoo makes your hair very smooth and soft; that’s one of the main reasons why this shampoo is on this list. The shampoo has argan oil, shea butter, and biotin inside, which are the best ingredients you can possibly get for keratin-treated hair.

The scent of this shampoo is also amazing, and that’s something you don’t notice very often with other shampoos.

7. Alfaparf Milano Keratin Therapy Lisse Design Maintenance Shampoo


Pricing: $$
Rating: ⭐⭐⭐⭐

This shampoo from Alfaparf Milano is a great shampoo for keratin-treated hair. It works best for normal hair, and the shampoo is sulfate-free. What I like about this shampoo is the sleek and modern design. The bottle is also pretty big and will last you between 3 to 4 months when used 4x a week.

Another plus is that this shampoo lathers very well, which is what a lot of people are looking for. After my treatment that lasted about 4 months, I started using this shampoo, and it turned out great.

This is the shampoo that my hairdresser recommended to me; at first, she told me that it was okay to use a non-sulfate-free shampoo. Still, over time, she recommended me to use a sulfate-free shampoo.

That’s what I started doing, and it totally changed my hair. My hair improved significantly; it got smoother and softer.

8. Argan Oil Sulfate Free Shampoo and Conditioner Set


Pricing: $
Rating: ⭐⭐⭐⭐⭐

This shampoo comes with a conditioner and is both sulfate-free; they work great for keratin-treated hair. The shampoo is made with argan oil and rich in natural ingredients. What I like about this shampoo is that it works very well with curly hair.

When I had curly hair a long time ago, I always used this, and it worked extremely well. So, if you have curly hair and went for treatment, this is the one you should go for.

It deep cleanses the dirt buildup from the scalp while also keeping it healthy. If you haven’t tried this out yet, I highly recommend it.

Just give it a try, and you’ll see the quality of this shampoo and conditioner. The price is also very affordable for everyone.

9. BOTANIC HEARTH Biotin Shampoo


Pricing: $$
Rating: ⭐⭐⭐⭐⭐

The shampoo from Botanic Hearth is a biotin shampoo with ginger oil and keratin inside, which is great for people with thin hair. What I like about this shampoo is that it’s a shampoo and conditioner set, which is great if you’re looking for that.

These products go very well together so, you can expect some great results when trying this out. You only need a small amount of this for it to work.

The shampoo is safe to use for color-treated hair and even daily use. However, I do not recommend washing your hair daily since it can strip out the natural oils from your hair.

The conditioner makes your keratin-treated hair very moisturized while also giving it some more texture. If you’re considering this product, I recommend you to try it out at least once before skipping to another brand.


Which Shampoo Is Best For Keratin Treated Hair?

The shampoo that’s worked the best for me is the one from L’Oréal Paris Hair. This shampoo has done wonders for me, and I still use it to this day. When I first started using a sulfate-free shampoo, I was a bit hesitant, but I just decided to go to it.

It was one of the best choices of my life because it literally made my hair smoother and shinier. I didn’t need to shampoo my hair every couple of days, which is great. This is definitely one of the better shampoos on the market right now, and it’s worth giving it a try.

Is Loreal Sulfate Free Shampoo Good For Keratin Treated Hair?

Yes, it’s great for keratin-treated hair. In fact, it’s one of the better ones out there. So, it’s definitely worth giving it a try and see for yourself. I have been using this shampoo for a long time now and still highly recommend it to everyone that’s going for hair treatment.

It makes your hair very soft and smooth, and you don’t need to use any other products to keep it like that. That’s what I really like about this shampoo.

What Does Sulfate Do To Keratin Treated Hair?

Sulfate-free shampoos are good for the hair because it doesn’t contain any harsh chemicals like most of the other brands out there. It has been getting more and more popular these days, and I know for sure that it’s going to continue to grow even further.

How To Maintain Keratin Treated Hair

There are many ways to maintain your hair; one of the most important tips is to use a good shampoo and conditioner. Other than that, you can use a hair mask, heat protectants, and sea salt sprays. That really depends on your hair routine and what you personally like.

I only use a shampoo, conditioner, and sea salt spray because that works great for me. I do not overuse any of them and always keep my routine strict. I only shampoo 3x a week at max and never use any other products that my hair isn’t used to.

before and after keratin treatment

Final Thoughts

At the end of the day, it’s really up to you which shampoo you’re going to buy. From my experience, it’s important to try as many brands as you can in the beginning. Eventually, you’ll find one that suits your hair type, and you can stick to that brand for a long time.

That’s what I did, and I still stick to my routine; it has been like this for over 3 years now. I really love it because I don’t have to find new hair care products every year. I hope this article has helped you find the shampoo that works for your keratin-treated hair.

Written by Christina Bowler

We're a team of hair care enthusiast that have been in this industry for a very long time. Since 2019 we've been writing helpful articles to help you find the right tips, tricks, and products that you might want. Feel free to ask us questions on the contact page.

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