Olaplex vs Kerastase: Which Is Better?

I was caught in a hair dilemma post-highlights, I was torn: Olaplex or Kérastase? After wading through a sea of reviews (we’re talking thousands!), I still couldn’t pick. So, guess what? I tried both Olaplex and Kerastase.

Kerastase vs Olaplex: Which is Better for Damaged Hair?

Overall Winner: Olaplex 

Score: 9.5 /10

Olaplex No. 4 Bond Maintenance Shampoo


Olaplex offers a wide range of hair care products designed to repair, protect, and strengthen hair across all types. The product lineup includes treatments, shampoos, conditioners, styling products, and even a new lash bond building serum, catering to various hair concerns such as oiliness, dryness, frizz control, damage, breakage, split ends, curl support, adding shine, and blonde maintenance

  • Repair and Strengthen: Olaplex products are designed to repair broken hair bonds and strengthen hair from within, addressing issues like damage, breakage, and split ends​​.
  • Suitable for All Hair Types: Whether your hair is curly, straight, fine, or coarse, Olaplex is beneficial for every hair type, helping to improve overall hair health​​.
  • Moisture and Shine: Products like the Nº.8 Bond Intense Moisture Mask provide significant moisture and shine, with users reporting 2x more shine and 4x more moisture​​.
  • Heat and UV Protection: The Nº.7 Bonding Oil offers heat protection up to 450° Fahrenheit and also protects hair from UV rays, making it a versatile product for styling and care​​.
  • Frizz Control: Olaplex products, particularly the Nº.6 Leave-in Styling Treatment, are effective in reducing frizz and flyaways, promoting smoother hair for up to 72 hours
  • Price: Olaplex products can be more expensive than standard hair care items, which might not fit everyone's budget.
  • Results May Vary: While many users experience significant benefits, results can vary based on hair type, condition, and usage. Some may not see the dramatic improvements promised.
  • Potential for Overuse: Overusing protein-based treatments like Olaplex can potentially lead to protein overload, making hair feel stiff and brittle. It's important to balance with moisturizing products.
  • Availability: Depending on your location, Olaplex products might not be as readily available in local stores and may require online purchase.

 Before Olaplex entered my life, my hair was a highlight-induced wreck. We’re talking dry, brittle strands that felt more like a bird’s nest than hair. Running a comb through it was like navigating a minefield, fraught with snaps and breaks. It was dull, lifeless, and in dire need of a miracle.

After integrating Olaplex hair care products into my routine, the change was like night and day. Before, my hair had the texture of straw, a testament to the harsh chemicals it had endured. But after, it was as if my hair had been reborn. The once brittle strands felt stronger, more elastic, and resilient. Where there used to be breakage, now hair smooth, manageable and responds to styling without threatening to snap off.

The real proof wasn’t just in the feel but in the appearance too. Pre-Olaplex, my hair had a matte, lacklustre quality, but post-Olaplex, it had a natural sheen that no amount of shine spray could replicate. The ends, which previously looked like they had been chewed on, now blended seamlessly into the length of my hair, soft and split-end-free.

It was as if Olaplex had gone on a mission beneath the surface, repairing the broken bonds and healing my hair from the inside out. The transformation was not just visible but tangible. Olaplex didn’t just save my hair; it gave it a second chance at health. 


Score: 9.5 /10

KERASTASE Chroma Absolu Chroma Shampoo & Conditioner Set | For Sensitized or Damaged Color-Treated Hair | Protects and Hydrates | Fine To Medium Hair | With Glycerin and Hyaluronic Acid


Kerastase hair products are like a luxury treat for your hair, designed to make it look and feel its best

  • Healthier Hair: Regular use of these products can lead to stronger, healthier hair. They're designed to target specific concerns like breakage, dullness, or dryness, giving your hair exactly what it needs.
  • Styling Made Easy: If you love styling your hair, Kerastase's styling products and treatments can help make your hair more manageable and protect it from heat damage, making styling a breeze.
  • Luxurious Experience: Beyond just the benefits to your hair, using Kerastase products feels like a bit of pampering. From the sophisticated scents to the creamy textures, it's a luxurious experience from start to finish.

  • They Work Well: Lots of people love how these products make their hair look and feel. Whether you need more volume, moisture, or help with hair damage, there's likely a Kerastase product for you.
  • Lots of Choices: They've got a huge range of products, so no matter your hair issue, Kerastase probably has something that could help.
  • Fancy Ingredients: They use some cool ingredients in their products that are supposed to make your hair healthier, like oils and vitamins that keep your hair looking shiny and feeling soft.
  • Feels Like a Salon: Using their stuff can make you feel like you just walked out of a hair salon, with that professional care vibe right at home.
  • Pricey: These products aren't cheap. If you're on a budget, they might be more than you want to spend on hair care.
  • Mixed Experiences: While lots of people swear by them, some folks find that certain products can make their hair feel dry or tangled until they use another product, like a hair mask or conditioner.
  • Changes and Caps: Some people have noticed that their favorite shampoo's formula changed over time. And a few have mentioned that the packaging can be annoying, like shampoo bottles where you have to remove the whole cap to use it, which isn't super convenient

How Olaplex Products Work:

Olaplex products have revolutionized hair care with their unique ability to repair, protect, and strengthen hair from within, especially beneficial for chemically treated or damaged hair. Here’s a breakdown of how Olaplex works its magic:

The Science Behind Olaplex

At the heart of Olaplex’s effectiveness is its patented active ingredient, Bis-Aminopropyl Diglycol Dimaleate. This groundbreaking molecule works by finding single sulfur hydrogen bonds broken during thermal, mechanical, and chemical hair processes and repairing them by converting them back into healthy disulfide bonds. Essentially, it rebuilds the hair structure,strength and integrity at a molecular level.

The Olaplex System: A Step-by-Step Approach

1. Olaplex No. 0 Intensive Bond Building Hair Treatment: acts as a powerful primer, enhancing the hair’s ability to absorb and maximize the reparative properties of subsequent Olaplex treatments, like the olaplex No. 3 Hair Perfector. It’s designed to rebuild hair bonds and strengthen hair from within, targeting damage at the molecular level. By applying it to dry hair before using olaplex No.3, it provides an intensive repair process, making it a crucial step for achieving the best results in hair restoration and strength.

2. Olaplex No. 1: Bond Multiplier This is a concentrated treatment that begins the process of repairing and preventing damage by rebuilding broken disulfide bonds in the hair. It’s typically used during chemical processes like coloring to minimize damage.

3. Olaplex No.2 : Bond Perfector Applied after chemical treatments or as a standalone treatment, it continues to rebuild and restore any remaining broken bonds ensuring the strongest, shiniest, and healthiest hair possible.

4. Olaplex No. 3: Hair Perfector no 3 Repairing Treatment A take-home treatment that further reduces breakage and visibly strengthens hair, improving its look and feel. It’s used once a week to maintain strong, healthy hair and repair any new damage.

5. Olaplex No. 4 and No. 5: Shampoo and Conditioner These products help to repair broken bonds while cleansing and conditioning the hair, leaving your hair easy to manage, shiny, and healthier with each use.

6. Olaplex No. 6 and No. 7: Olaplex no.7 Bonding Oil leave-in hair styling treatments that eliminate frizzy hair for up to 72 hours and provide heat protection up to 450°F (232°C), respectively. They also add a healthy dose of shine and repair hair.

The Results

The cumulative effect of using the Olaplex system is significantly healthier hair. Users often report:

Reduced Hair Breakage : Hair becomes stronger and less prone to breakage over time.
Restored Appearance : Hair looks and feels softer, shinier, and more vibrant.
Revived Texture : Curls and natural hair textures become more defined and manageable.
Enhanced Color : Color-treated hair retains pigment better and for longer periods, looking more vibrant and less faded.

In essence, Olaplex’s ability to repair damaged hair at the bond level has made it a go-to for hair professionals and enthusiasts alike, offering a real solution to hair weakened by chemical, thermal, and mechanical stresses. Whether used as a part of your at-home hair care routine or as a professional treatment, Olaplex products work synergistically to keep hair in its optimal state of health.

How Kerastase Products Work

The science behind Kérastase products blends sophisticated technology with luxury to provide targeted hair care solutions. Here’s a breakdown:

1. Advanced Formulations: Kérastase utilizes a mix of high-performance active ingredients, such as ceramides to reinforce hair fiber, lipids to improve natural oil production, and proteins to strengthen hair. These ingredients are selected based on their ability to penetrate deeply into the hair and scalp, offering repair and nourishing hair from within.

2. Customized Hair Care Regimens: Recognizing that hair concerns vary greatly among individuals, Kérastase’s approach is to offer customized regimens. By understanding the specific needs of different hair types, from fine and limp to thick and unruly, Kérastase products target the hair’s cuticle and cortex, addressing issues at the molecular level to restore hair health.

3. Innovative Technologies: Kérastase incorporates advanced technologies like the Système Capture Advanced for color-treated hair, which traps color pigments within the hair fiber to prolong color vibrancy, and the Nutritive Irisome Complex for dry hair, which provides long-lasting nourishment.

Through this blend of high-quality ingredients and personalized treatment plans, Kérastase not only aims to visibly improve hair’s appearance but also to treat underlying issues, ensuring healthier, stronger, and more resilient hair. This holistic approach to hair care, grounded in scientific research and innovation, is what sets Kérastase apart in the luxury hair care market.

Kérastase vs. Olaplex for Curly Hair

  • For Repair: If your primary concern is repairing damage and restoring the health of your curls, Olaplex might be the better choice due to its bond-building capabilities.
  • For Moisture and Luxe Care: If you’re looking for intensive moisture, nourishment, and a touch of luxury in your hair care routine, Kérastase could be more suitable.

Kérastase vs. Olaplex For Thinning Hair

  • For Strengthening Existing Hair: Olaplex is the better option if your main concern is to repair and strengthen existing hair, thereby reducing breakage and the appearance of hair loss caused by damaged hair.
  • For Promoting New Growth and Volume: Kérastase is likely more suitable for those specifically looking to address hair thinning from the scalp level, with formulations aimed at encouraging new hair growth and improving hair density.

Kérastase vs. Olaplex For Damadged Hair

  • For Repairing Bond Damage: Olaplex is generally considered the better option for directly addressing the internal damage caused by chemical treatments. Its ability to rebuild broken bonds can significantly restore the strength and structure of chemically compromised hair.
  • For Nourishment and Overall Hair Health: If your concern extends to the overall condition and appearance of your hair, including dryness, brittleness, and lack of shine, Kérastase’s targeted treatments offer luxurious nourishment and restoration, making it a strong contender.

Final Thoughts: Olaplex vs Kerastase

  • If your primary concern is repairing chemically damaged, brittle, or over-processed hair, Olaplex stands out as the better option due to its bond-repair capabilities.
  • If you’re seeking luxurious nourishment, a cosmetic upgrade, and a tailored regimen for different types of hair damage and concerns, Kérastase offers a broad spectrum of products that can cater to your needs.

Ultimately, your choice might also come down to personal preference and specific hair goals. Some individuals find using Olaplex for deep repair, followed by Kérastase for daily care and styling, provides a comprehensive approach to achieving both healthy and beautifully styled hair.


What is better Kerastase or Olaplex?

For repairing and strengthening chemically damaged or broken hair, Olaplex is typically considered better due to its bond-building technology. For overall hair nourishment, luxury treatment, and addressing a wider range of hair concerns, Kérastase might be preferred. Your choice should depend on your specific hair needs and concerns: Olaplex for damage repair, and Kérastase for luxurious care and nourishment.

Can you combine Olaplex with Kerastase?

Yes, combining Olaplex and Kérastase in your hair care routine is effective. Start with Olaplex to repair and strengthen your hair at the molecular level, then use Kérastase products for added moisture and specialized care. This approach maximizes the benefits of both brands: Olaplex for deep repair and Kérastase for luxurious nourishment.

Which oil is better Olaplex or Kerastase?

Choosing between Olaplex and Kérastase oils depends on your hair needs:

  • Olaplex No. 7 Bonding Oil is designed to repair, strengthen, and hydrate all hair types while providing heat protection up to 450°F. It’s particularly beneficial for damaged or compromised hair, thanks to its bond-building technology.
  • Kérastase oils, such as the Elixir Ultime L’Huile Original Hair Oil, cater to a broader range of hair concerns, offering nourishment, shine, and softness. These oils are great for adding luxury and a cosmetic finish to your hair, making it feel silky and glossy.

If your primary concern is repairing and protecting damaged hair, Olaplex might be the better choice. If you’re looking for versatile nourishment and a luxurious feel, Kérastase could be more suitable.

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