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  • K18 Leave-in Molecular Repair Hair Mask For Damaged Hair, repairing hair mask
  • K18 Leave-in Molecular Repair Hair Mask, hair mask for damaged hair, K18 hair mask
  • K18 Leave-in Molecular Repair Hair Mask, K18 damaged hair
  • K18 Leave-in Molecular Repair Hair Mask, hair mask for damaged hair, K18 mask
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K18

K18 Leave-in Molecular Repair Hair Mask For Damaged Hair 50ml

K18 Leave-in Molecular Repair Hair Mask For Damaged Hair 50ml
€ 59.96
€ 74.95 € 59.96
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K18 Leave-in Molecular Repair Hair Mask For Damaged Hair 50ml
K18 Leave-in Molecular Repair Hair Mask For Damaged Hair 50ml
€ 59.96 € 74.95

K18 Leave-in Molecular Repair Hair Mask is a leave-in conditioning treatment for damaged hair that works on a molecular level to dramatically reduce breakage and split ends, reduce colour fading and restore natural shine. Works in 4 minutes to clinically reverse hair damage.

Why you need it

K18 Leave-in Molecular Repair Hair Mask is an at-home hair treatment infused with patented K18Peptide™ that works to repair even the most extreme damage, renewing hair to it's most youthful, healthy state.

This patented K18Peptide™ creates hair like new by travelling deeper into the inner layers of the hair compared to traditional repair products, to reconnect broken keratin chains, renewing hair strength, softness, smoothness, and bounce. You can feel and see the difference with the first use. This formula doesn't wash away with shampoo, leaving lasting results, healing damage from bleach, colour, chemical services and heat.

Free from: Vegan, Cruelty Free, Sulphate Free, Paraben Free, Phthalate Free, Silicone Free, Artificial Colour Free, Sodium Chloride Free, Formaldehyde Free.

For best results, pair with the K18 Peptide Prep Detox Shampoo.

how to use
Shampoo, do not condition so the mask will penetrate hair more effectively. Towel dry hair until damp. Start with one pump and add more as needed. A little goes a long way. Work evenly into hair, one pump at a time, starting from ends to roots. Let sit for four minutes to activate. Do not rinse out. Style as usual.

Tip: Use a clarifying shampoo if you're a heavy product or dry shampoo user to remove buildup and help the peptide penetrate and get where it needs to go. Wait the full 4 minutes before styling or applying other product.

Key Ingredients
K18Peptide™ - This is the main ingredient in the hair mask, which is a bioactive peptide that works on the molecular level to repair hair damage in just 4 minutes. The K18Peptide™ is clinically proven to repair damage caused by chemical services, thermal styling, and mechanical stress. It strengthens and improves elasticity while reversing damage.

Hydrolyzed Wheat, Soy and Wheat Proteins - Proteins that helps to strengthen and repair the hair.

INGREDIENTS
WATER (AQUA) (EAU), ALCOHOL DENAT., PROPYLENE GLYCOL, CETEARYL ALCOHOL, DICAPRYLYL ETHER, CETYL ESTERS, BEHENTRIMONIUM CHLORIDE, POLYSORBATE 20, SH-OLIGOPEPTIDE-78 (K18PEPTIDE™), HYDROLYZED WHEAT PROTEIN, HYDROLYZED WHEAT STARCH, ISOPROPYL ALCOHOL, TOCOPHEROL, PHENOXYETHANOL, POTASSIUM SORBATE, CITRIC ACID, FRAGRANCE (PARFUM), GERANIOL, LINALOOL, HEXYL CINNAMAL, BENZYL ALCOHOL.

Faq's
Q: Is it safe for colour-treated hair?
A: Yes, the K18 mask is designed to be safe for colour-treated hair and can even help improve the condition and longevity of coloured hair.

Q: What makes this hair mask different from others?
A: The K18 mask uses bioactive peptides that work to repair hair at the molecular level, restoring broken keratin chains within the hair structure.

Q: Do I rinse out the product?
A: No, it's a leave-in treatment. After applying, simply style your hair as usual.

Q: Can I use other hair products after applying the mask?
A: Yes, after the mask has been left in for the recommended 4 minutes, you can style your hair using other products as desired.

Q: Will it weigh down my hair?
A: The mask is designed to repair and rejuvenate without leaving a heavy residue, making it suitable for various hair types, including fine hair.

Q: Can I use the mask on dry hair?
A: It's recommended to use the mask on towel-dried hair after shampooing for optimal results.

About the Brand

K18 is the hair repair brand that changed the game. Its patented K18Peptide works inside the hair to repair damage from bleach, colour and heat. Our bestseller is the K18 Leave-in Molecular Repair Hair Mask, used in just four minutes after shampooing with no rinse. Fans also love the K18 Airwash Dry Shampoo, Molecular Repair Hair Oil and Peptide Prep Detox Shampoo.

SHIPPING & RETURNS

Tracked Delivery

Delivery 3-7 Working Days
Free on orders over €65.00
No customs charges – the €3 EU import duty doesn't apply

Express Delivery

Orders placed before 3pm (GMT + 1)
Delivery 2-4 Working Days
Tracked 
SMS & Email Updates

Full delivery information · Returns policy

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  • 5 stars: 29 (83%)
  • 4 stars: 2 (6%)
  • 3 stars: 2 (6%)
  • 2 stars: 1 (3%)
  • 1 star: 1 (3%)
Some of the reviews shown are from related products the merchant grouped with this one.
S
Sarah
This product has made my hair look and grow back

This product has made my hair look and grow back so good from years of bleaching my hair it’s finally healthy again

Sarah review photo Sarah review photo Sarah review photo
P
Pauline
I am happy with

I am happy with it

l
lisa
Noticed improvement from first

Noticed improvement from first use

M
Mrs
Seems good—time will tell

Seems good—time will tell. But Cloud 10 were brilliant in delivering the item so quickly.

A
Anonymous
Great prodcut

Great prodcut, I can visibily see it repairing my ends even after a few uses.

K
Kate
Class

Class, I was a bit sceptical about the instruction to not use conditioner but after letting it sit in for 4 mins my hair was like silk to brush

A
Anonymous
Good

Good

A
Anonymous
So far so good

So far so good. Only used it three times and can see an improvement already

A
Anonymous
Best Hair Mask

By far the best hair mask I have used. My hair was damaged from heat and bleaching I could see the difference from the first use

E
Emily
Expensive but worth it!

Leaves your hair soft and healthy feeling

M
Melissa
Brilliant

Brilliant

J
JENNIE
Hair so soft

Unreal product I have generally dry hair and it’s so so soft after using this

Y
Yleana

Is good product

C
Cara
K18

Love this product

A
Amy
Amazing

K18 is always amazing and delivery always perfect with cloud10

K
Katarzyna
Best

Best product

G
Georgia
Great product! It does exactly

Great product! It does exactly what it says!

D
Dearbhla
redken review

Ordered the redken acidic bonding set and the k18 hair repair. Ordered it thursday and it came friday!! Super happy and I even recieved free samples!

L
Lynn
K18

It’s amazing feel a difference in hair after a week of using it

A
Amy
K18 hair mask

There’s was a lot more uses in this than I originally thought there would be 10/10

W
Wendy

:+1::skin-tone-2:

S
Safia
Excellent Product

Great hair care product, helped smooth my hair in only 5 washes. Great price, nowhere near as affordable on any other website!

A
Alexa
Damaged my hair

Completely damaged my hair and caused severe breakage. One look at the ingredients : alcohol is the main one! If you already have dry or damaged hair it can only destroy it more.

A
Aisha
Amazing

Amazing

J
Jennifer
The best

Great for hair growth.

T
Tracey
Hair feels great

I love this. I bought small bottle just to try and I will be purchasing the bigger one next.

C
Caroline
Okay

I was recommended this by my hairdresser after having it bleached and toned. I have quite dry hair naturally, and was hoping this would revive it as it was damaged by the bleach. It helps a bit, but not as much as I was hoping. I find I have to use an awful lot of it and my hair still feels very dry after use, so I add in some hair oil. Perhaps it's better suited for less dry hair? I would recommend trying it, and I'm going to continue use to see how it goes - just not sure it's worth the cost.

C
Clare
Amazing

Amazing

G
Gabriela
Love this product

Saved my bleached hair

P
Patricia
Disappointed

I was expecting a lot from this product, but I was disappointed as it did very little for my dry frizzy hair.

S
Sinead
Expected more

I got this after reading great reviews but for the price I don't feel it's great. You need more than 2 pumps if you have medium lenght hair, after a week of using it it's almost gone. My hair doesn't feel any different.