If you're investing in professional hair care, you've likely heard of K18, Olaplex, and Kevin Murphy. They're three of the most respected professional salon hair care brands in the industry, but they're often misunderstood as direct competitors.
The reality is they're designed to do different jobs.
Rather than replacing one another, these brands complement each other to create healthier, stronger and more beautiful hair. Understanding what each brand does best can help you build a routine that delivers salon-quality results at home.
K18: Repair Hair at the Molecular Level
K18 changed the hair repair industry by introducing biotechnology that targets keratin chains inside the hair.
Chemical services, bleaching, colouring and heat styling break down the protein structure that gives hair its strength and elasticity. K18's patented K18PEPTIDE™ is designed to reconnect damaged keratin chains, helping restore strength and resilience after damage has occurred.
K18 is best for:
- Bleached hair
- Colour-treated hair
- Heat-damaged hair
- Chemically processed hair
- Hair that feels weak or breaks easily
Popular K18 products include:
- Leave-In Molecular Repair Hair Mask
- Molecular Repair Hair Oil
- DAMAGE SHIELD Shampoo & Conditioner
- AirWash Dry Shampoo
- HeatBounce Conditioning Heat Protectant
Think of K18 as repairing the internal structure of damaged hair.
Olaplex: Rebuild Broken Bonds
Olaplex pioneered bond-building technology long before bond repair became mainstream.
Its patented ingredient, Bis-Aminopropyl Diglycol Dimaleate, helps reconnect disulfide bonds that become damaged during colouring, bleaching and chemical treatments.
While K18 focuses on keratin repair, Olaplex specializes in restoring the hair's bond network.
Olaplex is ideal for:
- Frequent colouring
- Highlighting
- Bleaching
- Perms
- Relaxers
- Hair that snaps during brushing
Popular Olaplex products include:
- No.3 Hair Perfector
- No.4 Bond Maintenance Shampoo
- No.5 Bond Maintenance Conditioner
- No.7 Bonding Oil
Think of Olaplex as strengthening the hair's structural framework.
Kevin Murphy: Healthy Hair Starts With Healthy Hair Care
Kevin Murphy takes a different approach.
Instead of focusing primarily on repairing existing damage, Kevin Murphy creates high-performance shampoos, conditioners, styling products and treatments that help keep hair healthy while delivering exceptional styling performance.
Using naturally inspired ingredients, antioxidants, amino acids and lightweight formulations, Kevin Murphy products protect colour, add hydration, improve manageability and create beautiful salon finishes.
Kevin Murphy excels at:
- Daily hair care
- Hydration
- Volume
- Curl definition
- Frizz control
- Heat protection
- Colour longevity
- Professional styling
Popular Kevin Murphy collections include:
- HYDRATE
- REPAIR
- YOUNG.AGAIN
- PLUMPING
- ANGEL
- EVERLASTING.COLOUR
Think of Kevin Murphy as maintaining healthy hair while helping you achieve your desired style every day.
Which Brand Is Right for You?
The answer depends on your hair's needs.
Choose K18 if:
- Your hair is already damaged.
- You've recently coloured or bleached your hair.
- You want intensive molecular repair.
- Your hair feels weak, brittle or overprocessed.
Choose Olaplex if:
- You colour or bleach your hair regularly.
- You're trying to minimize breakage.
- You want to strengthen damaged hair bonds.
- You want to protect your hair during chemical services.
Choose Kevin Murphy if:
- You want healthier-looking hair every day.
- You need hydration, volume or frizz control.
- You're looking for premium salon styling products.
- You want lightweight, high-performance formulas.
Why They Work Better Together
Professional hairstylists rarely rely on just one brand because healthy hair requires more than one solution.
Each brand fills a different role in a complete professional hair care routine:
- K18 repairs damaged keratin chains within the hair.
- Olaplex rebuilds broken disulfide bonds that weaken hair.
- Kevin Murphy maintains hair health while providing premium cleansing, conditioning and styling performance.
Together, they create a routine that repairs existing damage, helps prevent future damage and keeps hair looking its absolute best every day.
A Professional Hair Care Routine
A complete salon-inspired routine could look like this:
Weekly Repair
- K18 Leave-In Molecular Repair Hair Mask
Weekly Bond Maintenance
- Olaplex No.3 Hair Perfector
Daily Cleansing
- Kevin Murphy shampoo and conditioner selected for your hair type.
Daily Styling
- Kevin Murphy styling products
- K18 HeatBounce™ Conditioning Heat Protectant
- K18 Molecular Repair Hair Oil for shine and frizz control
This combination helps maintain healthier, stronger, shinier hair while reducing damage caused by colouring, heat styling and everyday environmental stress.
Why Hair Care Canada Carries All Three
At Hair Care Canada, we believe there isn't one perfect hair care brand—there's a perfect routine.
That's why we proudly carry authentic K18, Olaplex, and Kevin Murphy. Each brand addresses different hair concerns, and together they provide one of the most complete professional hair care systems available.
Whether your goal is repairing damage, preventing breakage, protecting colour or achieving salon-quality styling at home, our team can help you choose the right products for your unique hair needs.
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Every product we sell is 100% authentic, sourced directly through authorized Canadian distributors and backed by expert advice and fast Canada-wide shipping.
Frequently Asked Questions
Can I use K18, Olaplex and Kevin Murphy together?
Yes. These brands complement one another rather than compete. K18 repairs keratin damage, Olaplex strengthens broken hair bonds and Kevin Murphy provides exceptional daily cleansing, conditioning and styling products.
Is K18 better than Olaplex?
Neither is better—they solve different problems. K18 focuses on repairing keratin chains within the hair, while Olaplex rebuilds damaged disulfide bonds. Many hairstylists recommend incorporating both into a healthy hair care routine.
Does Kevin Murphy repair damaged hair?
Kevin Murphy offers nourishing and restorative collections like REPAIR and YOUNG.AGAIN that help improve the condition of damaged hair while providing premium daily hair care and styling. For intensive structural repair, pairing Kevin Murphy with K18 or Olaplex can provide a more comprehensive routine.
Where can I buy authentic K18, Olaplex and Kevin Murphy products in Canada?
Hair Care Canada is an authorized Canadian retailer offering authentic K18, Olaplex and Kevin Murphy products with fast shipping across Canada.
