K18 haircare floating with a ribbon on a pink and purple backdrop

K18 - Science-backed repair. No coatings. No compromise.

Revolutionary Hair Repair

K18 reverses hair damage at the molecular level with its patented biotech peptide. It reconnects the bonds broken by bleach, color, and heat, restoring strength and vitality to your hair.

Safe and Vegan Formulas

K18 products are color-safe, vegan-friendly, and crafted around clean, minimal formulations. Pamper your locks with these gentle yet powerful treatments.

Professional Strength Results

Experience salon-quality care at home with K18's advanced formulas. Transform your damaged hair into healthy, luscious locks with visible results after just a few uses.

Save $20.00

K18 FutureIQ Serum hair growth serum bottle with its applicator wand shown beside it on a light gradient background. Text overlays highlight benefits such as reversing hair age in 3 months, gaining 19,000 more hairs, showing 70% fewer grays, and improved scalp barrier.

K18 FutureIQ Biomimetic Hair Longevity Serum

$100.00

$120.00

A 118 ml bottle of K18 AirWash Dry Shampoo by K18 Hair Repair, featuring odorBIND™ biotechnology, is shown against a solid purple background.

K18 AirWash Dry Shampoo - Three-day clean. No white cast.

From $24.00

K18 hair mask bottle on a coral background with Allure award badge.

K18 Leave-In Molecular Repair Hair Mask - Hair repair, rewritten at the molecular level.

From $29.00

K18 Molecular Repair Hair Oil a Hair Repair

K18 Molecular Repair Hair Oil - Repair, shine, defrizz — in one drop.

$65.00

A 250 ml bottle of K18 PEPTIDE PREP Detox Shampoo by K18 Hair Repair, formulated with K18PEPTIDE™ for advanced scalp cleansing, shown on a solid turquoise background.

K18 PEPTIDE PREP Detox Shampoo - 99% buildup gone. Color fully intact.

From $36.00

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A bottle of K18 Hair Repair DAMAGE SHIELD pH Protective Shampoo (multiple sizes) with K18PEPTIDE™ is displayed against a blue background, featuring a circular label that reads "new name! same formula.

K18 DAMAGE SHIELD pH Protective Shampoo - Daily-use clean. No fillers. No stripping.

From $39.00

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A 250 ml bottle of K18 Hair Repair Damage Shield pH Protective Conditioner, featuring K18PEPTIDE™, is displayed against a solid blue background.

K18 Damage Shield pH Protective Conditioner - Condition, fortify, defend. One step.

From $39.00

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K18 AstroLift hair spray bottle on a blue background

AstroLift™ reparative volume spray - Volume that repairs while it lifts.

From $22.00

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K18 HeatBounce hair product bottle on a pink background

HeatBounce - Heat protection from the inside out.

From $24.00

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K18 FutureIQ hair longevity serum bottle and applicator with clinical benefit highlights.

care

K18 FutureIQ: Hair Longevity, Carefully Considered

K18's FutureIQ is a nightly serum clinically proven to deliver up to 19,000 more hairs, fewer grays, and a healthier scalp in three months — and it's coming to Simply Colour. Here's what it is, why...

We clean up after ourselves.

Ecommerce deliveries have a carbon footprint. That's why we support verified projects that remove carbon from the air.

K18 - Science-backed repair. No coatings. No compromise.

Revolutionary Hair Repair

Safe and Vegan Formulas

Professional Strength Results

We clean up after ourselves.

Ecommerce deliveries have a carbon footprint. That's why we support verified projects that remove carbon from the air.

Catch Up On New Products