How long does Brazilian Blowout last? How to take care of your hair so that it lasts longer?

  • The Brazilian Blowout lasts between 10 and 12 weeks. It means that it lasts more or less the same as the classic keratin treatment.
  • The exact duration will depend on aftercare, such as the use of sulfate-free products and a hairdryer at medium temperature.
  • It has a great advantage over other similar treatments. It is its low maintenance care, which I will detail below.


repeat application every 3 months


Every so often, a new hair treatment comes along, and it becomes the rage.

Of course, when it comes to mastering hair frizz, an infinite number of treatments have appeared in the last few years, from Japanese straightening to hair botox.


Nowadays, the fashionable treatment to keep frizz away from hair is Brazilian Blowout.

Do you know why?


 Because it lasts the same as any keratin treatment, that is, about four months, but with much less maintenance. 

You only need to use a sulfate-free shampoo and the dryer at a medium temperature.


However, even though it needs little care, you have to follow the rules. If you don’t, the Brazilian Blowout will only last two weeks. And it won’t be the stylist’s or the treatment’s fault.

Let me tell you a story to help you understand what I’m saying.


A few weeks ago, I made the Brazilian Blowout treatment for two friends who couldn’t stand their hair frizz anymore.

If you’d seen their faces when I finished, you’d have run to your salon right away to ask for it! They were happy and couldn’t believe their hair didn’t have the slightest trace of frizz!


As I know that that enthusiasm could automatically make their ears close, I asked them to sit down and listen to my recommendations carefully. My words were clear and precise:


 Use sulfate-free shampoo, blow dry your hair at a medium temperature, and don’t flat iron it during the first fortnight. 


Of course, they nodded to everything I told them as if I were a policeman wanting to give them a ticket. I thought they understood, so I waved them happily goodbye.

Imagine my surprise when one of them came back after four weeks, with uncontrollable frizz! Where had all my recommendations gone?


To the “Land of the Forgotten.”

There were tears and disappointment. Keratin-based treatments do magic, but even the best wizards need spells and wands to work the magic.

In this case, for the magic of Brazilian Blowout to work, you have to move the wand accordingly. How?


Stay right there because I’ll tell you how to keep the Brazilian Blowout going for a long time.

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How to make your Brazilian Blowout last longer

aftercare so it last longer

The Brazilian Blowout treatment straightens your hair and fills in the empty spaces in the hair fiber. That way, the frizz disappears, and the hair is softer to the touch.


The big advantage is that it doesn’t need much maintenance. However,  if you want to make the most of it and make it last four months, you must respect some basic issues. 

We will start with the basics: the products you should use after the treatment.


For the Brazilian Blowout treatment to last longer, you must use sulfate-free products

For a long time, I have been saying that sulfate-free products are the most recommended ones for dyed hair or treated hair. As they do not contain detergents, they do not damage the hair fiber.

If you decide to use Brazilian Blowout to control frizz, sulfate-free shampoos and conditioners should be in your orbit. And you will have two options.


  • Option 1: Brazilian Blowout post-treatment kit

anti frizz

This treatment is patented, so they market their own line of hair products for aftercare maintenance.

Of course, they are more expensive. How much?


A whopping $120, but if you can afford it, trust me, it won’t be wasted money.

The shampoo, conditioner, and ionizer will help extend the effects of the treatment on your hair. The longer it lasts, the further away the frizz will be.


Want a cheaper option?

You can choose other products that have the same characteristics, which are, basically, sulfate-free shampoos and conditioners.


  • Option 2: Sulfate-free shampoos to extend the effect of Brazilian Blowout

sulfate free

I will be clear here. To my clients, I specifically recommend three brands:

  • Pantene Kit Free
  • L’Oreal Paris EverPure
  • and Herbal Essence kit

Any of these options work perfectly to maintain your Brazilian Blowout treatment because they do not contain sulfates.


To make the Brazilian Blowout treatment last longer, you must use the blow dryer at medium temperature

Most keratin treatments are reactivated with heat after application and subsequent washings. In many cases, it is even necessary to flat iron to achieve a perfectly straight effect.


  •  After the Brazilian Blowout treatment, you only have to dry your hair with a blow hair dryer at medium temperature and 15 centimeters away from your hair. 
  • As if that wasn’t enough, you shouldn’t use the flat iron for the first 15 days.


That’s why it’s one of the most requested treatments in the salon. It’s the treatment to eliminate hair frizz with the lowest and easiest maintenance, and it lasts as long as any of them.



If you want to get rid of the frizz and have softer hair, Brazilian Blowout is an excellent option.

It requires very little aftercare and lasts as long as any other keratin treatment.

All you have to do is use sulfate-free products and blow-dry at a medium temperature.

Will you finally decide on Brazilian Blowout to end hair frizz?

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