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K18 Molecular Hair Mask – 50ml
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  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 Molecular Hair Mask – 50ml
  • K18 biomimetic hairscience leave-in molecular repair hair mask with packaging on a white background
K18 Molecular Hair Mask – 50ml
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£32.99 £80.00
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Return policy

We accept returns within 15 days of delivery, provided the items are unopened, unused, and in their original packaging.
Shipping

We dispatch orders within 1–2 days. Free standard shipping takes 4–5 days, while express shipping is available at an additional cost with faster delivery.
Manufacturing

Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

Revive your hair in just 4 minutes.
The K18 Leave-In Molecular Repair Hair Mask is a breakthrough in haircare, powered by biomimetic science to reverse even the most extreme damage caused by bleach, color, heat, and chemical services.

✅ Key Benefits:

  • Clinically Proven Repair – Restores strength, softness, and elasticity from the inside out.

  • Patented K18Peptide™ Technology – Reconnects broken keratin chains to repair damage at the molecular level.

  • No Rinse, Fast Results – Works in just 4 minutes with no rinse-out needed.

  • Lasting Transformation – Results won’t wash away—hair stays healthy, soft, and manageable.

  • For All Hair Types – Safe for color-treated, chemically processed, and heat-damaged hair.

  • Clean Beauty Formula – Vegan, cruelty-free, sulfate-free, paraben-free.

Loved by Our Customers

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Customer Reviews

Based on 2 reviews
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L
Leah State
A little goes a long way!

I have very dark hair naturally and I decided to go light blonde, close to platinum, so I can color over it with a lighter ash blonde. I bleached my hair twice, did a toner treatment, and then bleached it again a week later and toned it again and colored it. It was rough on my hair for sure. This serum is amazing! I used it as instructed for two days in a row (so far, I will use it 4 more times in a row as instructed) and my hair is soft and already feels stronger and looks healthier. It seemed expensive at first for the amount of product but it was well worth it! It doesn’t take much, I used 3 pumps total and worked it though my hair and my hair was smooth and super moisturized. The ingredients are cruelty free too which is a win for me! I highly recommend this product for bleached or color treated hair that is frail, dry, over processed, and otherwise chemically damaged.

C
Christopher E
5.0 out of 5 stars Fixed My Bleached Hair in One Use – Actual Hair Resurrection

LITERALLY SAVED MY HAIR IN ONE USE – MIRACLE IN A BOTTLE

I don’t usually leave reviews, but I would actually fight someone over this product if it ever got discontinued. Like. That’s how serious I am. I bleached the living life out of my hair recently—think straw, think crunchy ramen noodle ends, think “oops I fried it but I still want it to look good.” I used K18 once, and I swear to god my hair looked like I had never damaged it at all. ONE USE. Not three. Not six. One.

This isn’t your average deep conditioner or protein mask. This is full-on biotech magic. The science behind it is real—this isn’t marketing fluff. It uses a patented peptide (K18Peptide™) that literally reconnects broken polypeptide chains in your hair. Like, it doesn’t just make your hair feel soft temporarily. It rebuilds it. We’re talking actual molecular repair. You feel the difference IMMEDIATELY. And even better? The results just get better the more you use it.