In Stock

K18 Leave-In Molecular Repair Hair Mask

  • K18 Leave-In Molecular Repair Hair Mask 5ml
  • K18 Leave-In Molecular Repair Hair Mask 5ml
  • K18 Leave-In Molecular Repair Hair Mask 5ml
  • K18 Leave-In Molecular Repair Hair Mask 5ml
MSRP: €66.00
You save €59.00
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🚚 Order before 2pm for 1-2 Day Delivery
MSRP: €66.00
You save €59.00


Who’s it For?

All Hair Types


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


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.


Shipping And Returns

All Orders delivered for just €3.49 or Free over €69 to anywhere
in Ireland and Northern Ireland
  • SMS and Email Alerts
  • Order before 2pm for same day dispatch
  • 98% of all orders are delivered next 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 An Post and someone will need to sign for the parcel on delivery.