Kerastase vs Olaplex: Which is More Effective for Hair?

Welcome to my article on Kerastase vs Olaplex, the next in the comparison series.

Why do I write this series? They help you compare and choose the best of two competing hair care products. For that, they’re important for anyone who wants to keep their hair in tip-top condition.

It’s a fact that:

Maintaining healthy and vibrant hair is never easy. Several factors influence the condition of the hair including our diet and daily routine.

To keep the hair in the best possible condition, we must constantly learn and adapt healthy haircare routines which will include using the right products.

Now look at this:

Talking about the right products, it is becoming more difficult for many people to choose the right product from the plethora of options available on the market.

The decision can become even tougher when they have identified top brands like these two but have to choose one. If you find yourself in this situation, then read this article to the end.

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Kerastase vs Olaplex: Comparison

The main difference between them is that Olaplex needs professional administration while Kerastase can be used at home without the help of a professional.

In addition, Olaplex repairs bonds in the hair as well as seals the damaged ones. Kerastase, on the other hand, can help with dandruff, scaly scalp, and hair frizz.

Olaplex is used during the coloring process to minimize damages to the hair while Kerastase is for nourishing the hair and keeping strong.

Kerastase vs Olaplex: Which is Better?


Kerastase vs Olaplex
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Olaplex is used by a lot of hair colorists across the globe. And it’s recommended by many salons because it’s effective. In a study conducted with Olaplex and other products, Cureplex and Snaplex, Olaplex comes out better.

After 4 to 6 weeks of monitoring, the hair that Olaplex is applied to maintain a good, healthy state while others are shedding or degrading. Besides, Olaplex doesn’t contain the following ingredients:

  • Sulfates
  • Phthalates
  • Hemp
  • Aldehydes
  • Parabens
  • Formaldehyde

And it’s not tested on animals. This is good if you’re looking for a cruelty-free or vegan product.

In addition to all that, it doesn’t contain copolymers and oils which are present in Cureplex. These two ingredients can’t interlink disulfide bonds in the hair so might be a little shortcoming of Cureplex.

What’s the difference between Olaplex 2 and 3?

The difference between Olaplex 2 and 3 is that Olaplex No.2 is the continuation of the original Olaplex. Olaplex No.3 contains the same ingredients as No.2 but in a more diluted form. This is the subtle difference between the two versions of the product.

Is Olaplex good for fine, thin hair?

Yes, Olaplex is good for thin hair. One of the main functions of Olaplex is bonding broken bonds in the hair which often lead to thin hair. It’s meant to increase the thickness of the hair while also making it stronger.

So, if you have thinning hair, and you want thicker, healthier, and stronger hair, you can try out Olaplex.


Olaplex comes in a very expensive kit that only a few salons or individuals can afford. The salon kit with a 24 take-home treatment package is extremely expensive…it’s available at almost a thousand dollars at some point.


  • While other brands have keratin and silicone in the ingredient department, both are absent in Olaplex.
  • It can also be a good treatment for supporting hair buildup as well as adding shine to hair. And according to some users, it doesn’t break out the hair.
  • While the original kit may be expensive, there seem to be travel-sized packages that are much cheaper.
  • Olaplex is one of the first few unique hair treatments with patents on the market. It’s able to interlink disulfide bonds, which a lot of other treatments are not able to do.
  • Olaplex may be more expensive than Fibreplex and other plexes, but it’s a very powerful product. Not only can it help glue back old, broken bonds but can also protect the hair during the coloring process.


Kerastase is a French brand that’s been on the market for quite a while. Most of their products are based on treating hair problems such as thinning or damaged hair. If for some reason you’re experiencing any of these, you may want to try out one of their treatment products or shampoo.

Kérastase Resistance Serum Therapiste

Kerastase vs Olaplex
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For treating harmed hair, Kerastase Resistance Therapist is a genuine distinct advantage. This treatment is energetically prescribed for individuals with exceptional hair harm.

The treatment framework consists of a conditioner and a cleanser. The conditioner is intended to be utilized before shampooing with the goal that it can start to mend the hair and ensure the hair before the purifying procedure.

Kerastase Resistance Therapist is intended to restore Keratin Associated Proteins (KAPs). These proteins normally encompass the hair fiber to keep the keratin building squares flawless.

Be that as it may, harmed hair may have lost these proteins, bringing about frail and weak hair. By utilizing this Kerastase treatment, you can restore the KAPs on your hair and recuperate your hair to the full quality.

If you want to protect your hair from the damages of heat-styling tools, you may want to go with Kerastase. But might be at a cost.

Kerastase Densifique Bain Densite

Kerastase or Olaplex
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Another shampoo worth looking at is the Bain Densite from Kerastase. This hair-building shampoo can help add more density to thin hair, thus making it more visible and attractive.

you’re experiencing thinning hair and want a good shampoo that can assist in adding more density to your hair, you should try this. As with any product though, some people find it helps their fine and thin hair while some other people report they didn’t get the same effect.

Fortunately, the majority of users are on the positive side which makes it a good option to look at.

Kerastase vs Olaplex – Final Thoughts

To ensure you choose the right product, make sure you consider your hair type and your unique condition/situation. While it’s okay to look at only the price or how effective the product is, knowing what you need and which product can serve you better is going to yield the best result for you.

The truth is that both brands are great and they have quality products. The shampoos compared in this article are have similar purposes but have some differences between them. By considering these disparities, you should be able to see the one that might offer you the best results.

In some cases, choosing Kerastase or Olaplex might yield similar results. But because results sometimes depend on an individual’s hair, you may need to choose carefully so you don’t waste money or go through the stress of sending the product back.

Related: Joico vs Kerastase: Which One Provides the Best Hair Treatment?

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3 thoughts on “Kerastase vs Olaplex: Which is More Effective for Hair?”

  1. Hello ,
    Can anyone recommend me that can I use Olaplex shampoo or conditioner while expecting .
    Because I have heard that pregnant mothers cant use olaplex .And my hair fall so much please recommend me which shampoo or conditioner should I use for so much hair fall which is safe for expecting mothers .I want to get best product from Sephora .Please answer to my question as soon as possible .Thank you.


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