K18 Duo Leave In Conditioner Duo

Reverse damage and restore strength, softness, and elasticity with this K18 Leave-In Molecular Repair Hair Mask, powered by patented K18PEPTIDE™ technology
Product ID: 26979124
This K18 Leave-In Molecular Repair Hair Mask is an advanced treatment crafted to restore strength, softness, and elasticity to all hair types suffering from damage caused by chemical services, heat, and styling. Formulated with patented K18PEPTIDE™ technology, alongside hydrolysed wheat protein and starch, this powerful treatment works to reverse damage, delivering improved smoothness and bounce. Simply apply this transformative mask to freshly washed, towel-dried hair and leave for four minutes to allow its molecular repair benefits to fully activate, without rinsingGeneral Info: Pop this leave-in mask on in-between your salon visits to keep your hair looking and feeling incredibly strong, soft, and bouncy. It completely reverses damage from bleach, colour, and heat styling in just 4 minutes, making it the ultimate quick fix to maintain that gorgeous, healthy shineHow to apply:K18 Leave-In Molecular Repair Hair Mask 15mlBegin with 1 pump of K18 mask and add more as needed. Maximum recommended usage is 3 pumps.Apply all over, 1 pump at a time.Let sit for 4 minutes. Do not rinse out.Apply conditioner if desired for added smoothness, softness + detangling after using the K18 mask, then rinse out.K18 Leave-In Molecular Repair Hair Mask 50mlBegin with 1 pump of K18 mask and add more as needed. Maximum recommended usage is 3 pumps.Apply all over, 1 pump at a time.Let sit for 4 minutes. Do not rinse out.Apply conditioner if desired for added smoothness, softness + detangling after using the K18 mask, then rinse outIngredients: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: Restoring strength, softness, and elasticity to damaged hair of all types in just 4 minutes

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.*

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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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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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