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Official Stockist

K18 Biomimetic Molecular Repair Mask LIMITED EDITION SIZE 15ml

27 Customer Reviews Write a Review
IN STOCK - order by 12pm for same business day dispatch!

K18 Biomimetic Molecular Repair Mask 50ml 

Leave-in molecular repair hair mask

4-minute leave-in treatment to reverse damage

Hair like new. This leave-in mask heals and strengthens hair with lightweight moisturizing benefits to detangle and keep hair smooth and soft, without weighing it down. Please see dosage chart for exact usage. For best results, use for the first 4-6 consecutive washes following a service, and then every 3-4 washes as needed to maintain hair strength.

  1. Shampoo, do not condition. Towel dry thoroughly.
  2. Begin with 1 pump of K18 Mask and add more as needed depending on the length, thickness, and condition. Work evenly into hair, one pump at a time, from ends to roots.
  3. Let sit for 4 minutes to activate.
  4. Do NOT rinse out. Style as usual.

The Do's & Don'ts

  • Do use a clarifying shampoo if you’re a heavy product or dry shampoo user.
  • Do dry thoroughly with hair towel or turban before application.
  • Do wait the full 4 minutes before styling or applying another product.
  • DO use every 4-6 shampoos consecutively to see and feel the full results.
  • DON’T condition your hair before applying K18.
  • DON’T use too much.
  • DON’T rinse it out.
  • K18Peptide™ is the miracle molecule haircare was waiting for. Clinically proven to reverse damage in just 4 minutes.

You’ll discover:

  • Like-new hair repaired from the inside out
  • Healed damage from bleach, color, chemical services, heat, and mechanical styling
  • Restored strength, softness, smoothness, and bounce
  • Reduced breakage, split ends, and color fade
  • pH balance of 5.0-6.0
  • Doesn’t wash away with shampoo, leaving lasting results
  • 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.

  • Vegan
  • Color Safe
  • Cruelty-Free
Write a Review
  • Best product on the...

    Posted by Jane Woodrow on 12th Aug 2022

    I have been using K18 for my super fine hair and it works wonders! I put it in with my fingers using them like a comb and putting the product from the ends to just about the top of my scalp. It’s not oily or heavy and it really has conditioned my hair from all the colouring I have done in the past 35 years. This works and I can shampoo then put K18 in and blow dry my hair. Just remember to leave in for 5 minutes to get the full conditioning effect. Anyone with fine hair will have tried lots of conditioning products - but this actually works. My new best product recommendation.

  • Best restorative...

    Posted by Karina F on 9th Aug 2022

    I have very thin blonde hair that does not like to grow. This little baby helps my hair to be nourished so it grows and doesn't snap off. Makes my hair stay in the nicest condition, shiney and soft

  • K18 Biomimetic Molecular Repair Mask LIMITED...

    Posted by Zoe B on 4th Aug 2022

    K18 Biomimetic Molecular Repair Mask LIMITED EDITION SIZE 15ml

  • Exceeded expectations

    Posted by Mignon on 24th Jul 2022

    This stuff is amazing. Finally something that delivers on expectation and leaves straw like hair feeling like new again!

  • Great

    Posted by Anjena S on 23rd Jul 2022

    But 15ml and price of it..ridiculous

  • Worth the price

    Posted by Nicky on 29th Jun 2022

    Was sceptical but I gave it a go and will not look back. It’s a great product. Curls are more defined and less frizz and on blonde highlights the dry ends are really more healthy. Will absolutely repurchase.

  • Just...

    Posted by Joanne Kinghan on 29th Jun 2022

    It's early days with using this product, but I wouldn't say it's lived up to the hype. I have quite badly bleach damaged straw like hair and I'd say it's only been marginally softer and more manageable. I wouldn't buy this product expecting the miracle you might have been promised

  • Wasn't want I expected very small and...

    Posted by Andrea T on 19th May 2022

    Wasn't want I expected very small and expensive

  • K18

    Posted by Link on 4th May 2022

    I do not rate this product at all. Used as per instructions and was left with horribly greasy roots and frazzled dry ends. Could not wait to wash it off and get some conditioner on my hair. Glad I did not buy the large size.

  • Not worth the hype or the hefty price tag…

    Posted by Hannah on 27th Apr 2022

    I bought this product after trying it in the salon. Due to not conditioning afterward, and I’m suspecting not enough product, my hair was left feeling really dry and horrible after. I bought it anyway because it was recommended to use four consecutive times to really take affect and I was worried about my hairs health after bleaching. I have thick, wavy, mid length hair, but the small bottle suggested I start with three pumps and go from there (equivalent to one pump in the bigger bottles). Three was nowhere near enough for my hair, so I did three each side. I think I had good coverage without going overboard so I don’t suspect user error - but by the end of the four washes my hair did not feel as promised by the convincing description or the hefty price tag. It was worse off then if I had regularly washed it and it was a painful 4 washes before I was finally able to use shampoo with conditioner as normal. I have reverted to once a week now that my four consecutive washes is over and I still haven’t noticed any changes. I’m not sure if I am actually using it wrong or if this product just doesn’t suit my hair. I’d welcome some guidance, but if I don’t think I’ll be purchasing again unless someone can confirm user error.

  • K18 is a Game Changer

    Posted by Sophie on 18th Apr 2022

    If your blonde or trying to go blonde , buy this immediately ! Amazing product , i use this along side Olaplex 3,4,5 & my hairs the healthiest its ever been despite going from brown to blonde in 6months , iv had zero breakage.

  • Expensive but worth every penny!!

    Posted by Emma J on 17th Apr 2022

    Bought the small size just to try. Am now going to buy full size! I can tell it’s working because combing my hair without using conditioner is getting easier and easier everyday! I have a lot of hair, but it’s fine, so it’s hard to find products that don’t weigh my hair down or make it look greasy.
    Take the plunge - you won’t regret it.
    Better than Olaplex

  • Brilliant

    Posted by Unknown on 30th Mar 2022

    Does exactly what it claims. My sun and colour damaged hair is softer and less brittle after three applications. Expensive, yes. But definitely worth it!

  • Brilliant

    Posted by K Webster on 30th Mar 2022

    Does exactly what it claims. My sun and colour damaged hair is softer and less brittle after three applications. Expensive, yes. But definitely worth it!

  • K18

    Posted by Danielle P on 24th Mar 2022

    Incredible product!! Amazed at what it’s done for my hair

  • Not impressed left my hair dry

    Posted by Karen on 21st Mar 2022

    I have used this for 4 consecutive washes and used a clarifying shampoo firstly and it has left my hair dry and frizzy.! My hair was in much better condition before using this! I do not recommend.!

  • A hair saviour!

    Posted by Franki P on 9th Mar 2022

    This is liquid gold. A hairdresser friend recommended it to me, stressing the importance of only using the prescribed amount. You can tell a difference from the first use, after using a clarifying shampoo, but after wash #4, my extremely processed white-blonde hair feels like it did before colouring it. Worth every cent, and I’ll keep buying it forever!

  • K18

    Posted by Sam I on 5th Mar 2022

    Great product

  • So amazing

    Posted by Unknown ukht on 13th Dec 2021

    Product really works my hair is so much softer and is less tangled and feels healthier, before my hair was so broken and damaged from bleaching over henna and this has really brought my hair back alhamduliah

  • So...

    Posted by Salama M on 13th Dec 2021

    Literally saved the ends of my hair! My frizz has gone down so much, I used to never wear my hair out. Because it was so frizzy and damaged but this mask helped with my over processed hair

  • K18...

    Posted by Rebecca W on 4th Dec 2021

    This product is amazing. I regularly bleach my hair and after this product it is in great condition again.

  • K18

    Posted by Kelly on 18th Nov 2021

    I just want to rave about K18! It really works! My hair is smoother and softer than it’s been in years! As a woman of certain years, who has coloured hair and uses tons of product.. this little miracle is changing my hair for the better.. one dime sized pump at a time!

  • K18 works!

    Posted by Kelly R on 18th Nov 2021

    Hi there,
    I just want to rave about K18! It really works! My hair is smother and softer than it’s been in years! As a woman of certain years, who has coloured hair and uses tons of product.. this little miracle is changing my hair for the better.. one dime sized pump at a time!

  • Amazing Hair...

    Posted by Jane S on 15th Nov 2021

    I recommend the K18 Biomimetic Molecular Repair Mask it is an amazing product that works from the very first application. It leaves you hair feeling soft and rehydrated every time you use it.

  • Excellent product for my long fine hair, very...

    Posted by Lynda W on 5th Nov 2021

    Excellent product for my long fine hair, very happy :)

  • K18

    Posted by Tania G on 4th Nov 2021

    Excellent product wld recommend for blonde damaged hair
    Has helped my hair

  • Best product ever for hair...

    Posted by Petra M on 2nd Nov 2021

    If you want to repair your hair from any damage this product is a must have. Forget Olaplex!

Courier Charges Within New Zealand

  • FREE SHIPPING for orders over $100.00 (NZ Only)
  • Metro $6.00
  • Rural $9.00
  • We don't charge extra for dangerous goods.  However, the delivery is Economy and will be on a 2 day service and can take longer for dangerous goods

We use:

  • NZ Post

Delivery targets:

  • We aim to dispatch your order the same day if placed before 12pm, or after receiving your payment via internet banking.  During public holidays and weekends, parcels are sent the next available working/business day. Also, payments made via Internet transfer on the weekend, will generally show in our account Tuesday morning.
  • Small Parcels are targeted for Overnight delivery, however this is NOT guaranteed.
  • Rural, Larger & Dangerous goods (ie: Aerosols) may take 1-3 days.
  • Parcels may also take longer on public holidays and weekends or rural deliveries.
  • Parcels sent on Fridays are delivered on Monday.  There no Saturday deliveries.

Signature Required / Authority to Leave:

  • All our packages are sent as a Signature Required service. This means that the courier will need a Signature Required on delivery so someone must be available to receive.  If you are not available, they will leave a 'Card to Call' so you can arrange re-delivery. There is also multiple options for parcel redirection -
  • If you would prefer to have your package left with no signature required, you will need to submit a Authority To Leave request via NZPost -  This will mean you will not need to be home to sign for your package.  The courier will leave your package in a safe place, whether attended or not.  However, if the courier does not believe there is a safe place to leave the package, they may leave a "Card to Call" so you can arrange re-delivery.  You also release Hair Plus from all liability if an incorrect address is supplied or a parcel is stolen from your property after delivery.
  • Delivery instructions will not be followed without an Authority To Leave request.  However, even with an ATL in place, we can not guarantee that instuctions will be followed to the letter.  In particular, the courier will NOT call in advance to arrange delivery at a specific time.  

Hair Plus takes no responsibility for orders that are lost or stolen once the parcel has been delivered to the correct delivery address.

All orders dispatched receive a shipping confirmation email with a tracking number.  All parcels can be tracked unless otherwise stated.

International Shipping

At this time, we only ship to Australia via NZPost International Air. Free shipping does not apply to international orders. Unfortunately, we are unable to ship to other international addresses. Our apologies for the inconvenience.

Returns, Damaged Faulty or Incorrect Items

Please read our Returns Policy here.  All return requests should be submitted via the Returns policy page.


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