Description
Who’s it For?
All Hair Types
Introduction
4-minute leave-in treatment to clinically reverse hair damage. An at-home leave-in treatment infused with our patented K18Peptide™ that works to repair even the most extreme damage, renewing hair to its most youthful, healthy state. Traveling deeper into the inner layers of hair than traditional repair products, this revolutionary patented K18Peptide™ is just the right size and makeup to fit in and reconnect broken keratin chains, renewing hair with strength, softness, smoothness, and bounce. You can feel and see the difference with the first use.
- Clinically proven to reverse damage in just 4 minutes.
- Heals damage from bleach, colour, chemical services, and heat
- Restores strength, softness, smoothness, and bounce
- Doesn’t wash away with shampoo, leaving lasting results
- Vegan, colour-safe, cruelty-free
- 91% original strength*
- 94% original elasticity*
- * Results observed in a clinical study while using mist and mask as part of a bleaching treatment. Results may vary depending on hair type, quality and history.
Repairs damage caused by:
- Bleach and Colour
- Chemical Services
- Heat
How to use:
IN the shower
- Shampoo, do not condition.
OUT of the shower
- Towel dry thoroughly.
- Begin with 1 pump of the K18 Mask and add more as needed depending on the length, thickness, and condition.
- Work evenly into hair from ends to roots, one pump at a time.
- Let sit for 4 minutes to activate.
- Do NOT rinse out.
- Style as usual.
BeautyFeatures Style Guide:
- DO use a clarifying shampoo if you’re a heavy product or dry shampoo user to remove buildup and help our peptide penetrate and get where it needs to go.
- DO wait the full 4 minutes before styling or applying other product
- DO use every 4-6 shampoos consecutively to see and feel ongoing results
- DON’T condition your hair before application (trust us, most won’t need it after K18, if you still need, add a leave-in after the 4-minute window is up post-application)
- DON’T overuse, a little goes a long way.
- DON’T rinse out. This is a leave-in, so you know, leave it in!
More Info
- Vegan
FAQ
Q: How often should I use the K18 Leave-In Molecular Repair Hair Mask?
A:For best results, use for the first 4-6 consecutive washes, then every 3-4 washes as needed to maintain hair strength.
Frequently Asked Questions
What makes the K18 Leave-In Molecular Repair Hair Mask different from traditional hair masks?
Can I use the K18 Mask on color-treated or chemically processed hair?
How often should I use the K18 Leave-In Molecular Repair Hair Mask?
Is the K18 Mask suitable for all hair types?
Can I apply other hair products after using the K18 Mask?
Do I need to use a conditioner after applying the K18 Mask?
Is the K18 Mask vegan and cruelty-free?
How does the K18 Mask work in just 4 minutes?
Can I use the K18 Mask on extensions?
Will the K18 Mask weigh my hair down?
Ingredients
Shipping And Returns
in Ireland and Northern Ireland
- NEXT DAY DELIVERY IRELAND
- SMS and Email Alerts
- Order before 2pm for same day dispatch
- 98% of all orders are delivered next working day
Your order will leave our warehouse in Bray, Co Wicklow and be delivered the next working day. You will receive SMS & email tracking updates from the courier and someone will need to sign for the parcel on delivery.
- For full Delivery Terms visit our Delivery Page
- For hassle free returns visit our Returns Section
Product Reviews
45 Reviews
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YES! For hair repair YES!
This is really good product. I have fine curly hair and this is the most nourishing product without weighing the hair down. My hair has felt and looked really healthy since using this. Worth the price tag for sure!
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Fab product
Fabulous! Have ordered larger size aa love it so much. Leaves hair soft and shiny and tangle free
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Really see a difference in
Really see a difference in my hair since using k18
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Great treatment to tone damaged hair
My sister destroyed her hair with a harsh hair dye. Her ends were split and dry and I bought this product after reading the usage. It worked wonders after she used it twice is a row only.
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Saved my hair
This is a really good leave in. My hair is fine and curly and it was desperate for some help but I tried so many products, none with a lasting impact on the hair. Until this, this is it!! After only the first use my hair was noticeably shiny and soft. I will buy this over and over! Very small tube but it goes a long way.
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Saved my hair
This is my second tube, it has restructured my hair completely. My hair was severely damaged and coming out in clumps due to a hairdresser mishap with bleach. This saved it. With it being so damaged at the start I was putting it in after rinsing shampoo, wait 5/6 mins then went in with a mask and followed with a conditioner. Majority of people wouldn’t need to go to that extreme but at the time with the condition of my hair I had to.
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Ok
The mask, in combination with the spray, has helped in recovery of my hair, but I am giving a star less as it tends to leave my hair very greasy to the touch.
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K18 Leave-In Mask: A Miracle Makeover for Damaged Hair
If you're wondering if K18 lives up to the hype, I'm here to say — yes, it absolutely does! This leave-in mask is like a spa day in a bottle for my hair. It tackles damage at the molecular level, and the results are unreal: softer, stronger strands that actually feel healthier after each use. It’s a no-fuss, no-rinse miracle, making it perfect for busy days or just when your hair needs some extra love. Definitely worth adding to the haircare arsenal if you're after that fresh-from-the-salon feel every day!
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It works !
Really noticeable difference in my hair after use, less breakage & broken ends, left my hair feeling smooth & shiny ! Size of bottle is obviously small, would recommend for testing out first !
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Love this product!
Definitely one I will buy again!
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Lovely treatment for hair got
Lovely treatment for hair got 6 uses out of this size in shoulder length hair which i was surprised by.
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