The Best Permanent Hair Straightening Products

best permanent hair straightening products

Last Updated on 17th August 2023 by Chauncey Morgan

What if I told you that you could achieve perfectly straight hair for up to six months in just a few easy steps? No longer will you spend hours in the hair salon every few weeks. Say goodbye to standing in front of the mirror at home every day to style your hair. This is all possible, and you can achieve it if you get the best permanent hair straightening products that I review in this article!

I personally love all hairstyles, but the straight look is my favorite. After years and years of straightening my hair on a daily basis, I decided to look into permanent straightening methods and products. That is how I learned more about the awesome Brazilian keratin straightening treatments that can last up to six months or the Japanese straightening treatments that can last up to seven months!

Permanent hair straightening can change your life and save you a lot of time and money. Once you are positive that you want to put your hair through the treatment, you will need to find the product that will best suit your hair. Luckily, I have done the legwork to find some of the best products to choose from.

Today, you and I will go over the top 5 best products for permanent hair straightening. I am so eager to tell you more about them, so let’s get right into the review!


Keratin Research has such an amazing straightening product that gives you amazing results that last for up to 6 months, which is pretty darn amazing.

The Best Permanent Hair Straightening Products

There are so many companies that create amazing hair products, but not all of them work well on all types of hair. When looking for a permanent hair straightener, you have to do thorough research and find which product suits you best. It is also important to see how long the treatment will last!

To save you a lot of research and help you choose the right product for your hair, I have selected the top 5 permanent straightener products and briefly mentioned some of their features in this comparison chart. Let’s look at the basics about these five products:

#1 Keratin Research Brazilian Keratin Straightening Hair Treatment

  • Suitable for all hair types
  • Fast-drying formula
  • Lasts from three to six months
#2 G.HAIR Moroccan Keratin Smoothing Treatment

  • White clay and cocoa oil formula
  • Deep cleansing shampoo included
  • Lasts up to five months
#3 Shiseido Crystallizing Straight Professional Hair Straightening Treatment

  • Recommended for curly, coarse hair
  • Straightens and neutralizes
  • Lasts up to six months
#4 Moroccan Keratin Brazilian Hair Straightening Treatment

  • Recommended for dry, thick hair
  • Eliminates frizz from hair
  • Lasts from three to seven months
#5 Amazonliss Keratin Hair Straightening Treatment

  • Works best on frizzy hair
  • Made with acai and cocoa extracts
  • Lasts up to three months

Let’s look at all five straightening products in a bit more detail:

1. Keratin Research Brazilian Keratin Straightening Hair Treatment — Best Overall

Keratin Research really outdid themselves with this straightening treatment. Not only will it make your hair smooth and straight, but it will also strengthen it thanks to the keratin formula.

Key Features

  • Contains argan oil, coconut oil, protein, and amino acid complexes.
  • Express formula for fast results
  • Suitable for all hair types on men and women

From the fairest to the curliest hair, this keratin straightening treatment works well on all types of hair. What is even better is that you can use it on hair that has artificial color in it. It will make your hair shiny and healthy!


  • Repairs your hair
  • Long-lasting results


  • Self-application can be a bit difficult

This is the best overall permanent hair straightening treatment on this list, so I advise you to give it a chance if you really want to treat your hair well!


2. G.HAIR Moroccan Keratin Smoothing Treatment

G.HAIR exceeded my expectations with the amazing design on this treatment kit — it looks expensive and exotic, which really draws me to it. The kit comes with two bottles — a deep cleansing shampoo and a keratin treatment to help your hair look gorgeous.

Key Features

  • Great for eliminating frizz
  • Radiant finish
  • White clay and cocoa oil formula

In only three easy steps, you can achieve an amazing hairstyle that will last for up to five months. You will not be disappointed!


  • Suitable for all hair types
  • Does not affect hair color


  • The smell might be too strong for some people

If you want to give your hair the best elegant transformation, look no further than this Moroccan smoothing treatment from G.HAIR!


3. Shiseido Crystallizing Straight Professional Hair Straightening Treatment — Best Budget

I was tempted to recommend more than one product from Shiseido in this review because the company has so many great products that they offer, but I decided to go with this crystallizing permanent straightening treatment in the end. It comes in cute packaged pouches — one is the straightener, and the other is the neutralizing cream.

Key Features

  • Recommended for coarse and resistant curly hair
  • Innovative hair preserving technology
  • Visible results for up to six months

The application process can be a bit too difficult to do by yourself, so you should ask for help from a professional in order to get the best results.


  • Very effective
  • Suitable for both men and women


  • Not suitable for colored hair

This product is amazing, and you will really get your money’s worth with it. Do not worry if you are on a tighter budget. This permanent straightener is better than some of the most expensive straighteners!


4. Moroccan Keratin Brazilian Hair Straightening Treatment

This permanent straightening kit from Moroccan keratin includes four items — the keratin hair treatment, a clarifying shampoo, a non-sulfate moisturizing shampoo, and a non-sulfate moisturizing conditioner. You have everything that you need to make your hair look amazing in just one of these kits!

Key Features

  • Rejuvenates the hair thanks to coconut oil and amino acids
  • Package contains enough product for multiple treatments
  • Fast application process

The product comes with detailed instructions on how to use each item of the kit, so you can try to do it yourself at home or have someone help you out with it.


  • Will not damage hair
  • Lasts up to seven months


  • Not suitable for pregnant or nursing women

This is one of the best permanent straightening kits that you can purchase for quite an affordable price. It will not only make your hair straight, but it will also make it healthier!


5. Amazonliss Keratin Hair Straightening Treatment

Last but not least, I will talk about this permanent straightening kit from Amazonliss that comes with three items — an anti-residue shampoo, the Brazilian smoothing treatment, and an intensive repair mask. It will give you manageable, shiny hair that you will love!

Key Features

  • Hydrates and heals the hair
  • Reduces blow-drying time
  • Keratin smoothing treatment protects the hair from damage

The products come with detailed instructions that make the whole application process extra easy. Just follow the steps for straight hair that will last up to four months!


  • Suitable for all hair types
  • Perfect for DIY home use


  • Not suitable for recently colored hair

This product will leave your hair with the most shine it has ever had! Feel free to use it by yourself; just make sure that you check the instructions, warnings, and precautions before you start straightening!


best permanent hair straightening products

Buying the Best Permanent Hair Straightening Products and Treatments

After learning more about some of these permanent straightening products, I bet you are tempted to try one out. I can honestly say that I am right there with you, but there are some things to take into consideration before committing to the process.

There are several permanent straightening methods that you can choose from. Here are the four best methods and what you should know about them!

Brazilian Straightening

Brazilian straightening is very popular. It also goes by the name keratin treatment straightening, which you might have heard before.

This treatment is so popular because keratin is a natural protein found in hair. When you add a keratin treatment to the already existing keratin in the hair, it strengthens the strands and makes them healthier.

Hairstylists recommend having keratin treatments done in a salon by a professional because the application process can take a while. You should consult your budget before you make the appointment, but then again, it is totally worth the price because the treatment makes the hair straight for up to six months!

Japanese Straightening

Japanese straightening treatments are also called thermal reconditioning. The treatment involves the reshaping of protein bonds to make the hair strong and straight. Be ready for the process and wear comfy clothes — you will have to endure eight hours of hairstyling.

The results of the treatment are amazing and will be visible for up to seven months. However, it is not advised to do this treatment often because it has shown to be somewhat damaging to the hair, so bear that in mind when making your decision!

Chemical Straightening

Chemical straightening, or hair relaxing, is yet another great permanent straightening solution. It involves breaking protein bonds and reshaping them to make the hair straight.

This is a process that should be done by a professional because not doing it properly can lead to too much breakage in the hair and damage to the texture. Don’t worry. The results are worth it, so you will not regret going to the salon and spending some money on this treatment. After it, remember to treat your hair to a soothing and strengthening keratin- or botox-based treatment, or maybe use some coconut oil to make it healthier!

Hair Rebonding

The final chemical straightening treatment I’ll mention is hair rebonding. For this treatment, you will need to use a relaxant or cream that will soften the hair, break the strands’ structure, and build new bonds to make the hair straight.

The treatment will leave your hair looking flawlessly flat, but it will sure cause a bit of damage. Because of that, you should not do the treatment too often. If you do decide to do the treatment, I would advise you to treat your hair to a nice hair mask, coconut oil treatment, or keratin treatment after it.

Do check out our post on straightening products for African-American hair.


I have walked you through the journey of choosing the best permanent hair straightening treatments and products, but before I end this review, I would also like to tell you more about the questions that have been often brought up on this topic. Let’s look at some of them:

Can I permanently straighten my hair naturally?

There are some natural straightening treatments that you can use, but they are not really permanent — they will last anywhere from a couple of days to a week, which is quite shorter compared to the above-mentioned treatments.

If you want to use a natural straightening treatment, you should look into these DIY hair straighteners that you can make at home. They involve ingredients that you might even have at home that do not cost a lot of money.

How much does permanent hair straightening cost?

In the U.S., permanent hair straightening treatments done by a professional will cost anywhere from $250 to $800. The price varies depending on the length of your hair and its state, the longevity of the process, and the salon where you are doing the treatment. If you live in a larger metropolitan area, the chances are that the prices will be a bit higher than in smaller towns.

Final Thoughts on Permanent Hair Straightening Products

By now, you have an idea about whether you are ready to get your hair permanently straightened or not. If you want to get the most for your hair, go for the Keratin Research Brazilian Keratin Straightening Hair Treatment because it is the best product on the market right now. However, if you are on a tight budget, the Shiseido Crystallizing Straight Professional Hair Straightening Treatment might be a better choice.

Let me know what you think about these products and what your experience with permanent hair straightening has been. I look forward to your comments!

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