Olaplex vs K18, What is their Purpose?

by Brianna Thompson

When it comes to caring for damaged hair, finding the right products can be a game-changer. Two popular names that have taken the haircare world by storm are Olaplex and K18. Both brands have gained recognition for their ability to repair and restore damaged locks. In this blog post, we'll dive into the key differences between Olaplex and K18, highlighting their purpose and explaining why they are specifically designed for damaged hair. So, let's unravel the secrets behind these hair-saving treatments!

Image result for lets get into it gif

Understanding the Purpose:

Before we delve into the differences, let's establish the common ground. Olaplex and K18 are not your ordinary everyday hair products. They are specialized treatments formulated to target and address the needs of damaged hair. Whether your hair has been chemically processed, exposed to excessive heat, or experienced other forms of damage, these products are designed to repair and restore your hair's health.

Image result for well do i need it gif

Olaplex: The Bond Builder

Olaplex has gained a loyal following for its revolutionary bond-building technology. The core purpose of Olaplex is to repair and strengthen the disulfide bonds within the hair structure that may have been compromised due to various forms of damage. It works by reconnecting these bonds, resulting in healthier, more resilient hair. Olaplex is commonly used as a salon treatment, but it also offers at-home products to maintain and prolong the results between salon visits. However this is only targeted for excessive chemical damage and is not a product that should be overused. You can check out our olaplex line here


* MYTH DEBUNK: Olaplex is a protein free product and does not cause protein overload. However it is still a product that is only meant for excessive damage and does not need to be used too much. Simply ask a professional stylist like myself or your hair stylist for guidance.

Image result for well do i need it gif

K18: The Peptide Powerhouse:

K18 takes a different approach to hair repair with its innovative peptide technology. This treatment focuses on reversing hair damage by targeting the keratin proteins within the inner hair structure. The unique combination of peptides in K18 works to reconnect and reestablish the integrity of these proteins, resulting in restored strength, elasticity, and overall hair health. K18 is formulated to be a one-time treatment that delivers transformative results, and is maintained minmally by only using the mask every 4-6 shampoos the first month of use and then only used when needed. To learn more about k18 and why it is so revolutionary, read my blog Why K18 is The New Revolutionary Repair System for Hair | The Warehouse Salon. Shop K18 here at The Warehouse Salon! 

Image result for ooh this is different gif
The Key Differences:

While both Olaplex and K18 share the goal of repairing damaged hair, there are some notable differences that set them apart: 

1. Application Process:

Olaplex involves a three-step system, starting with the Bond Multiplier (No.1) applied in-salon during chemical processes, followed by the Bond Perfector (No.2) applied immediately after rinsing, and finally, the Hair Perfector (No.3), which is a take-home treatment used weekly. K18, on the other hand, is a single-step treatment that is applied to damp hair, left on for a specific period, and rinsed out.

Image result for ooh this is different gif

2. Treatment Duration:

Olaplex is designed to be an ongoing treatment, with the at-home Hair Perfector (No.3) used regularly to maintain and prolong the bond-strengthening effects. K18, however, delivers its transformative results with a single treatment, making it a convenient option for those seeking an instant boost for their damaged hair.

Image result for ooh this is different gif

3. Product Range:

Olaplex offers a comprehensive range of products beyond the three-step system, including shampoos, conditioners, and styling products, all formulated with the same bond-building technology. K18, on the other hand, focuses primarily on its signature treatment doe repair but recently introduced complementary products to help with issues such as PH balance and metal build up. Check out the other k18 products here

Image result for ooh this is different gif


When it comes to repairing damaged hair, both Olaplex and K18 have emerged as powerful contenders in the haircare arena. The key lies in understanding their unique approaches and selecting the one that aligns with your specific needs and preferences. Olaplex with its bond-building technology and multi-step system provides a comprehensive and ongoing repair solution, while K18 offers an instant transformation with its peptide-based treatment. Remember, these products are specifically designed for damaged hair, so if your hair is in a healthy state,

Leave a comment

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

About the Author

Brianna Thompson

More about Brianna