How Long Do Keratin Treatments Last? (+ Hair Care Tips)

My hair is really important to me, and I’m sure yours is as well. I want to keep it in the best possible condition, so I started looking into keratin treatment. But how long do keratin treatments last?

Keratin hair treatments tend to last between three and five months, which can depend on a number of factors, including your hair type, the way the treatment was carried out, and if you have damaged hair.

I will take you through everything you need to know about keratin treatments so that you are fully prepared for when you get yours.

Key Takeaways:

  • Keratin treatments can last anywhere from three to five months
  • The type of treatment used and the condition of your hair will affect how long the treatment lasts
  • If you have very damaged hair, you may need to reapply the treatment every few weeks to maintain results.

How Long Do Keratin Treatments Last?

In recent years, Keratin treatments have become increasingly POPULAR to achieve smooth, frizz-free hair. But how long do they last?

Keratin treatments are a type of hair treatment that smooths and straightens the hair by INFUSING keratin, a protein naturally found in the hair, into the strands [1].

The keratin treatment fills the GAPS in cuticles of your hair strands, making it appear smooth, shiny, and frizz-free.

Keratin treatments can last anywhere from THREE to FIVE months, depending on the type of treatment used and the condition of your hair.

Pro Tip: If you have very damaged hair, you may need to reapply the treatment every few weeks to maintain results.

So if you’re considering getting a keratin treatment, know that you can expect it to last for several months – though you may need to touch up your hair more frequently if it’s damaged.

What Lasts Longer: Professional Keratin Treatments Or Home Ones?

If you’re looking for keratin treatments that will last LONGER, you may want to consider getting a professional treatment rather than relying on home keratin treatments.

Professional keratin treatments last longer because they’re usually MORE concentrated and are applied by a TRAINED stylist who can ensure that the product is evenly distributed throughout your hair.

A professional keratin treatment also considers things like hair TEXTURE and knows how to handle all forms of hair.

On the other hand, home keratin treatments are often NOT as concentrated and can be challenging to apply evenly, leading to UNEVEN results that don’t last as long.

How Your Hair Type Impacts How Long Keratin Treatment Lasts

You have to remember that different hair types have DIFFERENT needs, which can influence how long your keratin treatment lasts.

1. Straight Hair

If you have straight hair, keratin treatments can last up to SIX MONTHS. The treatment can penetrate the hair more deeply, making it last longer.

lady with 16-inch hair

2. Wavy Or Curly Hair

If you have wavy or naturally curly hair (or frizzy hair), keratin treatments can last up to FOUR MONTHS.

lady with beautiful curls

This is because the keratin treatment for curly hair may not penetrate the hair as deeply, making it not last as long.

3. Coarse Hair

If you have coarse hair, keratin treatments can last up to THREE MONTHS.

woman curling her blonde hair

This is because the keratin treatment can help to fill in the gaps in your hair’s cuticle, making it appear smoother and shinier.

How You Hair Health Effects How Long Keratin Treatment Lasts?

Your hair health is also a FACTOR that can influence how long your keratin treatment lasts.

If you have DAMAGED hair, you may need to reapply the treatment every few weeks to maintain results.

But if you have HEALTHY hair, you can expect your keratin treatment to last three to five months.

When I refer to damaged hair, it includes:

  • Hair damaged from bleaching
  • Hair damaged from coloring too often
  • Hair damaged from blow drying
  • Hair damaged from straighteners (flat iron) and styling tools

For anyone curious about the aftercare of keratin treatments, I recommend you browse my article, “Why Do You Have to Wait 72 Hours After Keratin Treatment“.

How To Maintain Keratin Treatments To Make Them Last Longer?

Now that you know how long keratin treatments last, let’s talk about how to make them last even LONGER.

Thankfully, keratin hair treatment is a form of manageable hair conditioning, and it provides SILKY smooth hair that doesn’t require much care.

lady checking the hair strands

There are a few things you can do to make sure your keratin treatment lasts as long as possible:

  • Use a shampoo and conditioner for keratin-treated hair.
  • Avoid washing your hair too often (wet hair is not suitable for it).
  • Use a low heat setting when blow drying your hair.
  • Wait at least three days before washing your hair after a keratin treatment.
  • Avoid using salt water or chlorinated water on your hair.
  • Apply a keratin treatment at home every few weeks.

By following these tips, you can enjoy smooth, frizz-free hair for MONTHS. Keratin requires very little maintenance compared to many other forms of hair treatment.


Can Keratin Damage Your Hair?

Keratin treatments are usually safe for most people, but it’s important to note that keratin treatments can potentially damage your hair if they’re not done correctly.

Does Hair Go Back To Normal After Keratin Treatment?

Hair typically returns to its normal state after a keratin treatment wears off.

Can You Use Regular Shampoo After Keratin Treatment?

It’s best to use a shampoo and conditioner that’s specifically made for keratin-treated hair. This will help to extend the life of your keratin treatment.

Is Keratin Treatment Permanent?

No, a keratin treatment is not permanent. It typically lasts three to five months, although this can vary depending on the type of treatment used and the condition of your hair.


Keratin treatments can last between three and five months, depending on the TYPE of treatment used and the condition of your hair.

For those with DAMAGED hair, reapplying the treatment every few weeks will likely be necessary.

It can be tempting to carry out the treatment yourself at home, but the truth is that you’re better off with a PROFESSIONAL so that you get even coverage and the best results.

I hope this guide has been able to help give you a little more insight into how effective keratin treatments are and how long you can expect yours to last.

lady having a hair treatment at the salon

So, how long does your keratin treatment last? Let us know in the comments section!


  • 1. Basit A, asghar F, Sadaf S, Akhtar MW. Health improvement of human hair and their reshaping using recombinant keratin K31. Biotechnology Reports [Internet]. 2018;20:e00288. Available from:
About Martina Todorovska

Martina is a graduated Doctor of Dental Medicine with a huge obsession for anything beauty-related. Her freelance writing started out as a creative outlet and turned out to be a full-time job. If you have any beauty questions, the chances are Martina has the answers. READ HER LATEST ARTICLES . Follow her on LINKEDIN , INSTAGRAM. Learn more about her HERE.

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