K18 Leave-in Repair Mask Hair Mask

This leave-in treatment mask repairs damage from chemical and heat styling, restoring hair strength, softness, and bounce in minutes with a peptide formula for lasting results
Product ID: 26639351
Restore your hair's strength and resilience with this leave-in treatment mask, clinically proven to reverse damage in just four minutes. Suitable for all hair types, it repairs the effects of bleach, colour, chemical services, and heat styling to bring back softness, smoothness, and natural bounce.Powered by the patented K18PEPTIDE, this highly concentrated formula is engineered with the precise size and structure needed to penetrate the innermost layers of the hair. Once inside, it reconnects broken keratin chains for hair's strength and elasticity-delivering lasting, transformative results. Restores strength, softness, smoothness, and bounce. Repairs damage caused by bleach, colour, chemical services, and heat. Easy, leave-in formula for lasting results. Clinically proven performance. In a clinical study on hair bleached eight times, after just two uses. Biotech-powered K18PEPTIDE™ restored damaged hair by up to 82%"General Info: Reverse years of damage in minutes with this mask from K18!How to apply:In the shower:Shampoo hair; do not condition.After showering:Gently towel-dry hair until damp.Start with 1 mL (one dime-sized amount) of K18 Mask.Add more only if needed-most hair requires 2 mL, as this is a concentrated formula.Work evenly from ends to roots.Let sit for four minutes to activate.Do not rinse.After four minutes, style as usual (you may add heat protectant or styling products at this stage).Use for the first 4-6 washes, then switch to maintenance mode and apply as neededIngredients: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 AlcoholIdeal For: Repairing the effects of bleach, colour, chemical services, and heat styling to bring back softness, smoothness, and natural bounce

Delivery Options

Economy Delivery (UK) — £3.99 Delivered in 4–7 working days.
Standard Delivery (UK) — £4.99 Delivered in 2–4 working days.
Next Day Delivery (UK) — £7.99 Delivered the next working day on selected items. Terms & conditions apply.*

How Next Day Delivery Works

Upgrade your order to Next Day Delivery and receive your item(s) the next working day.
Orders placed by 9pm, Monday to Friday will arrive the next working day.

Scottish Highlands & Northern Ireland postcodes:

Orders placed between 9pm Friday and 2pm Sunday will be delivered on Tuesday if you live in the following areas: AB, BT, DD, EH, EX, FK, G, IV, IoM, KA, KY, ML, PA, PH, PL, TD, TR.
Remote postcodes (two working days): Our Next Day Delivery service takes two working days instead of one for the following postcodes: HS2, KW16–17, PA61–PA75, PA78, PH30, PH41–44, ZE2–3.

Ireland & The Channel Islands:

All orders to Ireland and the Channel Islands are eligible for standard delivery at a fixed fee of £7.95.

Channel Islands: Standard delivery in 3–4 days (£7.95), or Express delivery in 2 days (£9.50).
Republic of Ireland: Delivery within 7–10 days.


Unfortunately, Next Day Delivery is not available to Ireland or the Channel Islands.

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To see exactly when your item will arrive, please check the estimated delivery date (ETA) shown on the product page, in your basket, and at checkout.
If you order from more than one sale, we'll automatically split your order and ship items separately as they become available, so you receive each piece as soon as possible.

Delivery Options

Economy Delivery (UK) — £3.99 Delivered within 4–7 working days of our warehouse receiving your item from the supplier.
Standard Delivery (UK) — £4.99 Delivered within 2–4 working days of our warehouse receiving your item from the supplier.

Delivery Options

Economy Delivery (UK) — £3.99 Delivered in 4–7 working days.
Standard Delivery (UK) — £4.99 Delivered in 2–4 working days.
Next Day Delivery (UK) — £7.99 Delivered the next working day on selected items. Terms & conditions apply.*

How Next Day Delivery Works

Upgrade your order to Next Day Delivery and receive your item(s) the next working day.
Orders placed by 9pm, Monday to Friday will arrive the next working day.

Scottish Highlands & Northern Ireland postcodes:

Orders placed between 9pm Friday and 2pm Sunday will be delivered on Tuesday if you live in the following areas: AB, BT, DD, EH, EX, FK, G, IV, IoM, KA, KY, ML, PA, PH, PL, TD, TR.
Remote postcodes (two working days): Our Next Day Delivery service takes two working days instead of one for the following postcodes: HS2, KW16–17, PA61–PA75, PA78, PH30, PH41–44, ZE2–3.

Ireland & The Channel Islands:

All orders to Ireland and the Channel Islands are eligible for standard delivery at a fixed fee of £7.95.

Channel Islands: Standard delivery in 3–4 days (£7.95), or Express delivery in 2 days (£9.50).
Republic of Ireland: Delivery within 7–10 days.


Unfortunately, Next Day Delivery is not available to Ireland or the Channel Islands.

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