How long does keratin treatment last on curly hair? Between 3 and 4 months

Woman with curly hair looks up with a gesture of doubt

  • Ideally, a keratin treatment should last between 3 and 4 months on curly hair.

 

However, how long the treatment will last depends on these 4 factors (which we’ll look at more closely in this article):

  • The type of curls you have affects how long the keratin treatment lasts. Are your curls weak or strong?
  • Home vs professional keratin treatments: find out which lasts longer.
  • Keratin with or without formaldehyde: which one should you choose to make the treatment last longer?
  • Post-treatment care: does it really make the keratin treatment last longer?

 

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Do you have curly hair? And are you thinking about getting a keratin treatment to reduce frizz?

 

Maybe you’ve already had it done and want to know how long the magic will last. Well, as I was saying,  ideally the treatment should last between 3 and 4 months. 

 

However, it’s not such a simple answer. There are factors that make your keratin treatment last for longer or less time. In this article, we’ll look at each factor.

But first, let me tell you how keratin works on curly hair.

 

 

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How keratin works on curly hair

Girl with super long, healthy and curly hair

Hair keratin adds strength, shine, and elasticity. It also  creates a barrier against damage from pollution, UV rays,   and aggressive coloring and styling methods.

Keratin treatments bring a wealth of nutrients to the hair, making it look healthier and more controlled. That’s the idea. But does it really?

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Yes, it does. Plus, the big reason why it has become the most popular choice for curly hair is that  keratin can transform your curls into a completely straight head of hair. 

And even if it doesn’t straighten them, it can leave you with more relaxed and defined curls. Shiny, easy to shape, soft, and frizz-free.

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Undoubtedly, there is a before and after keratin treatment on curly hair. Let’s now look at the 4 factors that will prolong or shorten the duration of keratin treatment on curly hair.

The type of curls you have affects how long a keratin treatment lasts. Are your curls weak or strong?

girl with curls smiles

Did you know that there are different types of curls?

 

Of course! There are curls that have much stronger structures than others.  Just wet a strand of hair and see if the curl appears right away or if your hair takes longer to curl. 

  • After you wet it, if your hair curls right away, its structure is much stronger.  The keratin treatment will last you 2 months  at least.

 

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  • After you wet it, if your hair doesn’t curl as easily, then your hair is more docile.  The keratin treatment will last between 3 and 4 months .

 

YOU MAY ALSO LIKE: My keratin treatment only lasted a month. What do I do?

 

Home versus professional keratin treatments: which one lasts longer

woman irons her curly hair

As you might imagine,  if you do the keratin treatment at home, it definitely won’t last as long  as if you have it done in a hair salon. Why?

 

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Because it’s very difficult to apply keratin yourself using the professional technique.

Do you know what that is?

 

 In the hair salon, we use straighteners at a temperature of 230 degrees Celsius  so that the treatment penetrates well into the hair fiber. In addition, we divide your hair into small sections and  run the straightener through up to 15 times. 

Now, doing this at home is very difficult. Even if you have a professional straightener, your arms will get tired very quickly.

  • A home keratin treatment can last around 1 month, or at most 45 days.
  • A professional treatment can last between 3 and 4 months.

Have you decided which one is better?

Read on to learn more.

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Keratin with or without formaldehyde: which one to choose to make it last longer

bottle of formaldehyde

There are hundreds of keratin options on the market.  Keratin will straighten your hair either more or less depending on the amount of formaldehyde  (or derivatives) it contains.

So,  the more formaldehyde the keratin contains, the straighter your hair will be and the longer the treatment will last .

 

But be careful. Formaldehyde is not good for our health or for our hair. Why? It dehydrates, weakens, and makes the hair brittle. So you’ll have to decide between keratins with formaldehyde or without formaldehyde, and see which one suits you.

Here’s an interesting point: straightening with more formaldehyde can last up to 6 months.

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YOU MAY ALSO LIKE TO READ: Formaldehyde-Free Keratin Treatment: Straighten your hair without the risk

 

Post-treatment care: does it really make the keratin treatment last longer?

Believe it or not,  the care you put in after your keratin treatment will determine how long it lasts. 

 

To make your keratin treatment last as long as possible, follow these 5 tips:

  • DO NOT wet or wash your hair for 3 days after having a keratin treatment.

This is the time it takes for the keratin to be absorbed into your hair.

 

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  • Use shampoo free of salt and sulfates, as these will remove the treatment. Forget about your regular shampoo.

 

  • Choose a moisturizing conditioner for daily use and a mask to use once a week (even better if it contains keratin).

 

  • Wash your hair every 3 days. If you can go for more days without washing it, so much the better!

 

  • Keratin treatments are activated by heat. Therefore, it’s important you activate it after washing your hair with a hair dryer or straightener.

And don’t forget to apply a heat protectant.  If you don’t activate it with heat, your keratin treatment will gradually disappear. 

 

Conclusion: on curly hair, keratin ideally lasts 3 to 4 months

As we’ve seen,  the ideal duration of a keratin treatment on curly hair is between 3 and 4 months.  But we also saw that this depends on the type of curls you have and the products you use on your hair. And it also depends on whether you do the treatment at home or in a salon.

If you haven’t had a keratin treatment yet, ask your hairdresser which type is best for you depending on what you want to achieve (control frizz, straighten your curls, etc).

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And now it’s time to show off your hair!

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