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K18 Hair Care Collection – molecular repair treatment for damaged hair

K18

K18 is the biotech-powered molecular repair system that reverses damage from bleach, colour, heat and chemical services using the patented K18PEPTIDE. Whether you need a 4-minute reset, daily protective wash, or styling that repairs as it works, the K18 range delivers clinically tested results. Top sellers at Sable include the K18 Leave-In Mask, the K18 Damage Shield Shampoo and Conditioner, the K18 AirWash Dry Shampoo and the K18 Molecular Repair Hair Oil.

Shop the full K18 hair care collection at Sable Boutique.

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10 products

K18 Leave-In Molecular Repair Hair Mask 50ml, NZ stockist Sable BoutiqueK18 Leave-In Mask 15ml travel size for damaged hair repair
K18
K18 Leave-In Mask Sale priceFrom $23.80 Regular price$28.00
(3.0)
K18 Peptide Prep Detox Shampoo 250ml clarifying wash, NZ stockist Sable BoutiqueK18 Peptide Prep Detox Shampoo lifestyle shot for clarifying buildup
K18
K18 Peptide Prep Detox Shampoo Sale priceFrom $21.25 Regular price$25.00
K18 Damage Shield pH Protective Shampoo 250ml, NZ stockist Sable BoutiqueK18 Damage Shield Shampoo lifestyle shot, pH-optimised daily cleanser
K18
K18 Damage Shield pH Protective Shampoo Sale priceFrom $19.55 Regular price$23.00
K18 TripleBright Purple Shampoo 125ml for blondes, NZ stockist Sable BoutiqueK18 TripleBright Oxidation Defence Purple Shampoo packaging detail
K18
K18 TripleBright Purple Shampoo Sale price$67.15 Regular price$79.00
K18 Damage Shield Protective Conditioner 250ml, NZ stockist Sable BoutiqueK18 Damage Shield Conditioner 53ml travel size for daily detangling
K18
K18 Damage Shield Protective Conditioner Sale priceFrom $19.55 Regular price$23.00
Back SoonK18 AirWash Dry Shampoo 118ml non-aerosol biotech dry shampooK18 AirWash Dry Shampoo 118ml non-aerosol bottle, official packshot
K18
K18 AirWash Dry Shampoo Sale priceFrom $51.00 Regular price$60.00
(5.0)
K18 HeatBounce Conditioning Heat Protectant 118ml, NZ stockist Sable BoutiqueK18 HeatBounce spray bottle, leave-in heat protectant for damaged hair
K18
K18 Heat Bounce Heat Protectant Sale priceFrom $51.00 Regular price$60.00
K18 AstroLift Reparative Volume Spray 118ml, NZ stockist Sable BoutiqueK18 AstroLift Volume Spray 47ml travel size for fine hair
K18
K18 Astrolift Volume Spray Sale priceFrom $42.50 Regular price$50.00
K18 Molecular Repair Hair Oil 30ml weightless biotech oil, NZ stockist Sable
K18
K18 Repair Oil Sale price$106.25 Regular price$125.00
K18 FutureIQ Biomimetic Hair Longevity Serum 90ml bottle front viewK18 FutureIQ Hair Longevity Serum 90ml with dropper showing 19,000 more hairs, 70% fewer greys and improved scalp barrier
K18
K18 FutureIQ Biomimetic Hair Longevity Serum Sale price$233.75 Regular price$275.00

Origin: United States
Founder: Suveen Sahib
Made by: Biotech-engineered, vegan, cruelty-free

Why choose K18 hair repair products

K18 is a biotech haircare brand that delivers measurable molecular repair, not surface coating. The patented K18PEPTIDE penetrates the hair cortex and rebuilds the broken polypeptide chains that cause damage, breakage and dullness. Sable Boutique is an authorised NZ K18 stockist, with fast nationwide delivery and Afterpay and Zip available at checkout. Every K18 product is sulphate, paraben and phthalate free, vegan and cruelty-free.

Shop K18 by hair concern

Looking for a specific K18 product? Browse K18 mask for the flagship 4-minute molecular repair treatment, K18 shampoo and conditioner for daily pH-protective washing, K18 oil for finish and frizz control, K18 detox shampoo for clarifying before treatment, K18 AirWash for between-wash refresh, K18 AstroLift volume spray for fuller hair, K18 Heat Bounce for heat protection, and K18 TripleBright purple shampoo for blonde toning.

The K18 routine, step by step

Start with K18 Peptide Prep Detox Shampoo once a week to clarify. Follow with K18 Leave-In Mask on damp hair for 4 minutes (do not rinse). On other days, wash with K18 Damage Shield Shampoo and Damage Shield Conditioner. Style with K18 Heat Bounce before heat tools, finish with K18 Repair Oil, and refresh between washes with K18 AirWash.

Authorised K18 NZ stockist

We use and recommend K18 in our own colour and styling services. Every product on this page is genuine, freshly stocked and supported by our salon team. Pair K18 with bond-builders such as Epres Bond Repair or Olaplex Rich Hydration Mask for a full salon-grade routine.