K18 HAIR
Unlock your healthiest hair with K18 Hair range at Space NK and discover the iconic K18 hair mask, K18 dry shampoo, and advanced K18 hair treatments designed to visibly revive damaged and colour treated hair.
Unlock your healthiest hair with K18 Hair range at Space NK and discover the iconic K18 hair mask, K18 dry shampoo, and advanced K18 hair treatments designed to visibly revive damaged and colour treated hair. Powered by biotech, each innovative yet simple formula contains the brand’s patented K18PEPTIDE™ protein that works to repair damage and help restore softness, strength and luminous shine.
About K18
K18 was founded in 2020 by Suveen Sahib, who worked in labs with bioscientists for ten years to understand the science behind our hair. Fuelled by his passion for “less is more”, he saw an opportunity to bring new technology to the haircare industry, using the brand’s patented K18PEPTIDE™ protein. His mission is to break the cycle of damaged hair without having to compromise on expressing yourself through your hair.
After launching in 2020, the K18 hair mask quickly became a best-seller loved by hair professionals and consumers alike. Other hero products include the K18 Shampoo and Conditioner, K18 Dry Shampoo and K18 Repair Oil. All K18 treatments are vegan, cruelty-free, plastic net-zero, silicone-free, sulfate-free and paraben-free.
Who is K18 For
K18 is suitable for anyone experiencing hair damage caused by bleaching, colouring, chemical services or heat styling. Designed for all hair types and textures, it’s ideal for those looking to repair and strengthen their hair while maintaining softness, shine and manageability.
Why Space NK Loves K18
We love K18 for its innovative biotechnology and results-driven formulas that work quickly and effectively. The brand’s hero hair mask has become a cult favourite among professionals and beauty lovers alike, helping to restore strength, elasticity and smoothness in just four minutes.
Your Questions, Answered
K18 is a biotechnology-powered haircare brand best known for its patented K18Peptide™ protein that is found in every product and works to repair visible damage caused by bleach, colour, chemical services and heat styling.
The brand’s hero product is the K18 hair mask, a leave-in treatment that when applied to clean, towel-dried hair, works in just four minutes. A streamlined addition to any routine, it is suitable for all hair types and textures.
The magic of K18 lies in its patented peptide technology. Unlike traditional conditioners that simply coat the surface, the K18 peptide is powered by biomimetic science designed to reconnect broken keratin chains within the hair’s inner structure.
When hair is damaged by bleach, colour, chemical treatments or heat styling, those chains break down, leaving strands weak, brittle and prone to snap. The K18 peptide is small enough to penetrate deep into the cortex, helping to restore strength, softness and elasticity in just four minutes.
To use the K18 hair mask, shampoo your hair and skip conditioner, then towel-dry thoroughly before application. Apply 1–3 pumps of the K18 leave-in molecular repair hair mask, depending on your hair length and thickness, starting at the ends and working up towards the roots.
Leave the mask on for four minutes to activate, then do not rinse it out. After four minutes, comb through, apply any additional styling products and style as usual. For best results, use the K18 mask for the first 4–6 consecutive washes, then reduce to once every 3–4 washes for maintenance.
Yes, K18 is highly effective for repairing chemically treated, bleached or heat-damaged hair, making it ideal for anyone who wants more than just surface-level conditioning.
Its patented molecular repair technology penetrates deep into the hair cortex to reconnect broken polypeptide chains, addressing damage caused by chemical services like bleaching and colouring as well as heat styling. This internal repair restores hair health, leaving strands stronger, smoother, softer and more manageable while improving resilience, shine and bounce.
