Olaplex vs. Kerastase: all their differences and the best for your hair

apply in beauty salon

  • Olaplex and Kerastase Fusio dose are two different treatments for professional use.
  • If you’re going to bleach or dye your hair in the salon, the best choice for your hair is Olaplex. It rebuilds the damaged bonds in the hair fiber and prevents the chemicals from causing further damage.
  • If you need to strengthen weakened or brittle hair, extend color and shine, or add extra moisture, Kerastase Fusio Dose is for you.
  • While Olaplex is a three-step treatment for everyone, Kerastase Fusio Dose is customizable according to each hair’s needs.


YOU MAY ALSO BE INTERESTED IN: Does Olaplex really cause hair loss? The short answer is NO! Here’s why


Are you thinking of investing your dollars in a salon because you feel your hair needs urgent attention?


You need to make a SMART decision and not be carried away with the latest hair treatment.

There’re so many “plex,” “bond” (not Agent 007), molecular regeneration, and nano nutrients treatments that you must feel dizzy as if you were riding a merry-go-round.


  Today I’ll focus on two of the most requested treatments in salons: Olaplex and Kerastase Fusio Dose. .

Just because they’re the most requested ones, it doesn’t mean they’re the ones your hair needs.


It doesn’t matter if your favorite influencer publishes that it’s the solution to all hair problems.

It doesn’t matter that your best friend went from gummy to soft and docile hair after using one of them.

It doesn’t matter because every hair is unique with a unique story behind it.


Also, you’ll be paying serious money for the treatment. I’m sure you cannot waste even an extra dollar, am I right?

So, to avoid you feeling dizzy and wasting your money, we’ll analyze the differences between Olaplex and Kerastase. .

You’ll see how, in the end, you’ll be able to decide which treatment is best for you.

Tabla de Contenidos


Olaplex vs. Kerastase Fusio Dose: what is each treatment for?

apply during bleaching

Olaplex rebuilds the disulfide bonds in the hair fiber. It sounds like basic Chinese, but it’s not.

What Olaplex does is rebuild the original structure of the hair while preventing damage caused by chemicals.


In turn, Kerastase Fusio Dose conditions the hair with highly concentrated products. Although it’s a repairing treatment, it doesn’t work at the molecular level like Olaplex. Instead, it works at the cuticle level.

hair treatment


  •   If you’re going to bleach your hair, your best choice without any doubt is Olaplex. It’ll also be your best choice if you want to dye your hair. 
  •  If you want to improve the appearance and texture of your hair, Kerastase Fusio Dose is a good option for you. 


When Olaplex is added to the chemical process in the salon, it starts repairing bonds before chemicals wear them out. So, it saves the integrity of your hair.

In contrast, Kerastase Fusio Dose treatments are applied exclusively in the salon because they’re highly concentrated conditioning serums. They address the problems of weakened, brittle hair, providing shine and nourishment.


Can Olaplex be applied at home? And Kerastase Fusio Dose?

washing hair

Well, the answer here isn’t so simple.


Olaplex is a complete seven-step treatment. You don't need to use all of them. You   should complete at least the first three steps.  by doing steps 1 and 2 in the salon.

Step 3 can be applied at home to finish the first stage of the treatment. Steps 4 onwards are optional. They’re all about the shampoo and conditioner lines.

blonde highlights

Unlike Olaplex, Kerastase must be applied by a professional.

The treatment consists of five “boosters” that can be mixed with four intensive concentrates. It means that   up to 20 different combinations can be achieved. .


In other words, only a stylist can determine which combination is right for your hair after evaluating it.

Depending on your hair's primary and secondary needs, your stylist will choose a booster and a concentrate to create a custom blend.


So, which treatment is easier to apply? Which one is faster?

Well, they’re almost the same for a stylist. Olaplex is a little harder to apply than Kerastase because it has to be mixed with chemicals like peroxide. It’s necessary to get the proportions right.

Where there is a real difference is in the application times for each.


  •  It’ll take you at least an hour and a half to two hours to get the Olaplex treatment in the salon.  

Don't forget that it’s done during bleaching or coloring the hair. So, you have to wait for the chemicals to work.


  •  The Kerastase treatment will take twenty to thirty minutes. It includes the time it’ll take your stylist to evaluate your hair. 

Yes, it’s much faster. In fact, it’ll take longer for your hairdresser to get to know your hair care routine, evaluate it, and decide what Kerastase combination it needs.


The treatment application only takes five minutes. Yes, just like you read! Don't forget that we're talking about concentrated hair repair and nourishment treatments.

It brings us to the next question.


How long does each treatment last?

There isn’t a universal law because it all depends on your beauty routine.

The effects of Olaplex are permanent. Once it rebuilds the sulfide links, they remain intact.

Of course, they’ll stay that way until you bleach or color your hair again. What's more, if you flat iron your hair too often, the Olaplex will last less. Excessive heat also breaks the disulfide chains in the hair.

Don't forget that Olaplex has a product line for home use. It extends the effects of the process at the salon.


Unlike Olaplex, Kerastase Fusio Dose has a temporary effect. Don't forget that it works at the cuticle level. It’ll last for a maximum of five washes.

That brings us to the last difference: the price.


How much does the Olaplex treatment cost at the salon? And the Kerastase Fusio Dose?

The difference is quite stark.

While the Olaplex treatment costs between $40 and $50, the Kerastase treatment costs less than $15.


Of course, in the case of Olaplex, the price of the bleaching and coloring service is not included. It depends on the type of work you do and the salon.

It isn’t the same to bleach black hair to blonde than to refresh highlights.

Also, don't forget that the effects of Olaplex are permanent as long as you don't bleach or color your hair. Kerastase, on the other hand, will fade with washing.


 These prices are obviously for reference and will vary depending on the location of the salon and many other variables .

The prices in well-known salons with many branches are usually higher than smaller or "neighborhood" salons.



Both Olaplex and Kerastase treatments are excellent for restoring lost health to your hair.

However, while Olaplex is recommended during bleaching or coloring, Kerastase can be applied at any time. It’s an absolutely customizable treatment.

Now, tell me, which of the two treatments do you think is right for your hair?

Deja Tu Comentario