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 Future IQ Serum bottle with a silver cap, set against a futuristic iridescent background with water droplets and a circular promotional badge that reads 'start REVERSING HAIR AGE in 3 months'.

K18 FutureIQ Biomimetic Hair Longevity Serum

$100.00

$120.00

On sale

A bottle of K18 Biometric Hairscience TripleBright Triple purple shampoo, featuring a white bottle with lavender-blue accents and a matching cap, set against a solid lavender-blue background.

K18 TRIPLEBRIGHT Purple Shampoo | Brass Gone in One Wash

From $40.00

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 Mask | 4-Minute Repair

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

A white pump bottle of K18 Damage Shield Keratin Anti-Damage Shampoo with blue accents, set against a solid blue background.

K18 DAMAGE SHIELD Shampoo | Daily pH-Protective Clean

$59.00

A bottle of K18 Restore Haircare Damage Shield reparative conditioner, featuring a white bottle with blue accents and a blue pump dispenser, set against a solid blue background.

K18 DAMAGE SHIELD Conditioner | Protect & Fortify

$59.00

Catch Up On New Products

Warm brunette with soft caramel hidden highlights

Beyond Flat Brown: Your Complete Guide to Dimensional Brunette Shades

Brunette is shifting. This year it's moved away from flat, one-note brown toward rich, multidimensional colour with real depth and shine. If your brunette has started to feel dull or one-dimension...