PeterJames Scalp & Hair Clinic Scalp & Hair Clinic

K18 with Colour

PeterJames Scalp & Hair Clinic is rated 4.9 out of 5 from 163 reviews

A bond-repair treatment added to a colour appointment. K18 works at the level of the keratin chains inside the hair, reconnecting bonds that colour and bleach break. It’s applied during your appointment rather than needing a separate visit.

Example of PJ's work, photo 1 of 8

Who it’s for

Anyone having bleach, highlights or a big colour change — especially if your hair is fine, already lightened, or has felt gummy or over-stretched after colour before.

What to know

  • It’s a repair treatment, not a conditioner. It changes how the hair holds together, not just how it feels on the surface.
  • Add it when you book rather than on the day, so we can allow the time.
  • Only available alongside a colour service. For a standalone version, book Stand-Alone K18 Treatment & Blowdry.

Reviews

  • Frances Rankin 5 star Google review
    “I can't recommend PeterJames Hairdressing highly enough - I had a fantastic salon experience with Peter! I really love the cut, but what's been incredible is the change in my hair's condition. It was thinning, like straw, tuggy after washing (couldn't pull my fingers through it), but now the texture is silken. For those of us of a certain age, or anyone suffering hair loss, "Peter James" (Haymarket) has one of only two hair salons in Scotland that has a Scalp, Menopause & Hair Loss Clinic. Absolutely five stars! ⭐️⭐️⭐️⭐️⭐️”
    Read more of Frances Rankin's review
  • Brittany Ballinger 5 star Google review
    “I had a really wonderful, 10/10 experience at PeterJames Hairdressing this morning. After cutting my own hair for several years due to the pandemic and then having newborn twins, my hair was in a sorry state 😳 - totally uneven, jagged layers, a real mess. Zowie did an incredible job repairing my hair and transforming it into something I could be proud of (and no longer embarrassed by)! Peter, James, and Zowie all took the time at the start to discuss different options with me, clearly communicating what they thought would suit my hair and face shape best. They made me feel so heard and valued, and just really good about myself! The process of cutting and styling my hair went so smoothly. Zowie was so easy to talk to and she did a great job communicating each part of the process as it was happening. I couldn't be happier with the end result. Lesson learned, no more cutting my own hair 😆! PeterJames Hairdressing, I'll definitely be back. Thank you so much! ❤️”
    Read more of Brittany Ballinger's review
  • Karyn Connor 5 star Google review
    “I’ve been going to see Peter since the salon opened and love it there, and would suggest them to anyone. I always come away feeling great about my hair but also myself. But today I had an amazing chat with Peter about the work they are doing to improve peoples scalps and their passion to help women going through perimenopause and menopause. Peter said someone close to him started going through this and he made it their mission to learn all they could. I’ve also seen the amount they learn about a product before bringing it into the salon and how important it is to them that they only suggest natural products. To see how much they care about their clients health and wellbeing, legit makes me emotional. 5 stars isn’t enough? They go above and far beyond.”
    Read more of Karyn Connor's review
  • Zoe Speirs 5 star Google review
    “Great experience, I went for a smoothing treatment for my frizzy hair with Zowie. Really friendly, lovely with great knowledge and advice to help an inexperienced person like myself. Such a nice salon inside. All the staff were so nice too, with lots of cups of tea made for me. Would defo recommend :)”
    Read more of Zoe Speirs's review
  • L Lana 5 star Treatwell review
    “Absolutely lovely. I have very damaged abused hair from years of bleaching and extensions. They were kind, polite and non-judgmental towards my hair concerns. They are are real miracle workers. My hair has gone from a damaged birds nest to a beautiful, well conditioned sleek professional cut. I really couldn’t be happier. Thank you so much.”
    Read more of Lana's review
  • M Mary 5 star Treatwell review
    “I had a wonderful experience getting a blow-dry but also while I was there I got a detox scalp treatment that's worked wonderful on my scalp. Oli was so kind, caring and knowledgeable. I felt very comfortable with them and at the salon.”
    Read more of Mary's review
  • H ho ho 5 star Google review
    “Visiting Edinburgh from Canada. What a pleasure & joy to experience this salon away from my familiar trusted home hairstylists. Keeva - thanks for the relaxing wash & scalp massage, and for the haircut that has had many wonderful compliments. Thanks to your awesome colleagues too. Great salon!”
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  • A Agata 5 star Treatwell review
    “I had a wonderful experience getting a haircut and blowdry with Zowie at Peter James Scalp & Hair Clinic and I couldn't be happier with the results. If you are looking for a great service - this is the place!!”
    Read more of Agata's review

Here to answer your questions

Frequently asked questions

Who should add K18 to a colour appointment?

Anyone having bleach, highlights or a big colour change, especially if your hair is fine, already lightened, or has felt gummy or over-stretched after colour before.

Is K18 just a conditioner?

No. It's a repair treatment. It changes how the hair holds together, not just how it feels on the surface.

Do I need a separate visit, and can I add it on the day?

It's applied during your colour appointment rather than needing a separate visit. Please add it when you book rather than on the day, so we can allow the time.

I'm having bleach. Isn't BlondorPlex already protecting my hair?

BlondorPlex, the only lightener we use, has bond-building technology built in, so protection begins during lightening itself. K18 is a different technology from a different brand, doing a different job: it works at the level of the keratin chains inside the hair, reconnecting bonds that colour and bleach break.

Can I have K18 without a colour service?

This version is only available alongside a colour service. For K18 on its own, book the Stand-Alone K18 Treatment & Blowdry, which is the same bond-repair treatment finished with a blow-dry.