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United States · Est. 2021

K18

Molecular repair hair mask

Peptide-powered hair repair that changed the bleach-damage conversation.

★ 4.810369 reviews27,408 followingVisit shop ↗

On the shelf

AirWash™ dry shampoo 4oz

AirWash™ dry shampoo 4oz

K18

$48

High-performance, futuristic clean. Non-aerosol dry shampoo with patented odorBIND™ smart-release biotechnology. Clinically eliminates odors, reduces oil + keeps working for up to 3 days.* *Disclaimers

★ 4.5462 reviews
AstroLift™ reparative volume spray 1.6oz

AstroLift™ reparative volume spray 1.6oz

K18

$22

A mini version of our lightweight, buildable volume spray, powered by K18PEPTIDE™ to reverse bounce-depleting damage that can impact all hair types—especially fine, fragile, aging + breakage-prone hair.

★ 4.6309 reviews
AstroLift™ reparative volume spray 4oz

AstroLift™ reparative volume spray 4oz

K18

$46

A lightweight, buildable volume spray, powered by K18PEPTIDE™ to reverse bounce-depleting damage that can impact all hair types—especially fine, fragile, aging + breakage-prone hair.

★ 4.6394 reviews
DAMAGE SHIELD protective conditioner 8.5oz

DAMAGE SHIELD protective conditioner 8.5oz

K18

$39

A nourishing, protective conditioner that helps shield hair from daily damage to help maintain hair health and improve smoothness and shine. Engineered to weightlessly soften and detangle while the K18PEPTIDE™ helps replenish hair during washing.

★ 4.7496 reviews
DAMAGE SHIELD protective shampoo 8.5oz

DAMAGE SHIELD protective shampoo 8.5oz

K18

$39

A color-safe, pH-optimized shampoo with the patented K18PEPTIDE™ to effectively cleanse while maintaining hair health and protecting hair from damage. pH-optimized formula helps reduce excess swelling of the hair cuticle during washing to help prevent frizz, preserve color, and enhance shine.

★ 4.7326 reviews
Damage Shield Wash Care Set

Damage Shield Wash Care Set

K18

$62

Full-size shampoo + conditioner duo gently cleanses, protects from damage, and leaves all hair types soft, smooth, and shiny with every wash.

★ 4.771 reviews
Full-Size Leave-In Molecular Repair Hair Mask 50mL

Full-Size Leave-In Molecular Repair Hair Mask 50mL

K18

$75

A leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes*. The K18PEPTIDE™ is clinically proven to repair damage from bleach + color, chemical services and heat* – with immediate and lasting results to restore strength, softness, smoothness and bounce to hair.

★ 4.7101 reviews
FutureIQ™ biomimetic hair longevity serum

FutureIQ™ biomimetic hair longevity serum

K18

$120

Lightweight serum is clinically proven to deliver up to 19,000 more hairs, fewer grays, and improved scalp barrier. Powered by proprietary MultiVital™ technology, the first synergistic multi-pathway system for premature hair aging. reduce shedding reduce graying protect scalp longevity

★ 4.654 reviews
Gift Box - medium

Gift Box - medium

K18

$5

Gift Box - medium from K18 — clean everyday essentials for the tiny marketplace.

★ 4.5377 reviews
Gift Box - small

Gift Box - small

K18

$5

Gift Box - small from K18 — clean everyday essentials for the tiny marketplace.

★ 4.4360 reviews
HeatBounce 1.6 oz

HeatBounce 1.6 oz

K18

$24

A discovery-sized version of our leave-in conditioning heat protectant detangles, softens, and delivers deeper heat protection than ever before*—for 85% less breakage after blow drying*. *k18hair.com/disclaimers

★ 4.7241 reviews
HeatBounce conditioning heat protectant 4oz

HeatBounce conditioning heat protectant 4oz

K18

$48

This leave-in conditioning heat protectant detangles, softens, and delivers deeper heat protection than ever before*—for 85% less breakage after blow drying ⁷ .

★ 4.5292 reviews
Jumbo DAMAGE SHIELD protective conditioner

Jumbo DAMAGE SHIELD protective conditioner

K18

$59

A nourishing, protective conditioner that helps shield hair from daily damage to help maintain hair health and improve smoothness and shine. Engineered to weightlessly soften and detangle while the K18PEPTIDE™ helps replenish hair during washing.

★ 4.4190 reviews
Jumbo DAMAGE SHIELD protective shampoo

Jumbo DAMAGE SHIELD protective shampoo

K18

$59

A color-safe, pH-optimized shampoo with the patented K18PEPTIDE™ to effectively cleanse while maintaining hair health and protecting hair from damage. pH-optimized formula helps reduce excess swelling of the hair cuticle during washing to help prevent frizz, preserve color, and enhance shine.

★ 4.5207 reviews
Jumbo Leave-In Molecular Repair Hair Mask 100mL

Jumbo Leave-In Molecular Repair Hair Mask 100mL

K18

$120

A leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes*. The K18PEPTIDE™ is clinically proven to repair damage from bleach + color, chemical services and heat* – with immediate and lasting results to restore strength, softness, smoothness and bounce to hair.

★ 4.4105 reviews
Jumbo PEPTIDE PREP™ detox shampoo

Jumbo PEPTIDE PREP™ detox shampoo

K18

$59

A color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™ to gently but effectively remove 99% product buildup*, 95% sebum* + 76% copper* for detoxified, refreshed hair. *Disclaimers

★ 4.6224 reviews
K18 x Future Society Limited Edition Scent Mask

K18 x Future Society Limited Edition Scent Mask

K18

$75

A limited-edition K18 x Future Society collab. Biology-first molecular hair repair mask scented with fragrance inspired by extinct flower DNA.

★ 4.4275 reviews
Mini AirWash™ dry shampoo

Mini AirWash™ dry shampoo

K18

$24

High-performance, futuristic clean. Non-aerosol dry shampoo with patented odorBIND™ smart-release biotechnology. Clinically eliminates odors, reduces oil + keeps working for up to 3 days.* *Disclaimers

★ 4.8428 reviews
mini DAMAGE SHIELD protective conditioner 1.8oz

mini DAMAGE SHIELD protective conditioner 1.8oz

K18

$14

A nourishing, protective conditioner that helps shield hair from daily damage to help maintain hair health and improve smoothness and shine. Engineered to weightlessly soften and detangle while the K18PEPTIDE™ helps replenish hair during washing.

★ 4.6479 reviews
mini DAMAGE SHIELD protective shampoo 1.8oz

mini DAMAGE SHIELD protective shampoo 1.8oz

K18

$14

A color-safe, pH-optimized shampoo with the patented K18PEPTIDE™ to effectively cleanse while maintaining hair health and protecting hair from damage. pH-optimized formula helps reduce excess swelling of the hair cuticle during washing to help prevent frizz, preserve color, and enhance shine.

★ 4.4445 reviews
Mini Leave-In Molecular Repair Hair Mask 15 mL

Mini Leave-In Molecular Repair Hair Mask 15 mL

K18

$29

A leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes*. The K18PEPTIDE™ is clinically proven to repair damage from bleach + color, chemical services and heat* – with immediate and lasting results to restore strength, softness, smoothness and bounce to hair.

★ 4.684 reviews
Mini molecular repair hair oil

Mini molecular repair hair oil

K18

$27

This biotech-engineered weightless oil works on all hair types to strengthen, repair damage, reduce frizz at two levels of the hair fiber, and improve shine.

★ 4.450 reviews
mini PEPTIDE PREP™ detox shampoo 1.8oz

mini PEPTIDE PREP™ detox shampoo 1.8oz

K18

$14

A color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™ to gently but effectively remove 99% product buildup*, 95% sebum* + 76% copper* for detoxified, refreshed hair. *Disclaimers

★ 4.833 reviews
Molecular Repair Hair Oil

Molecular Repair Hair Oil

K18

$65

This biotech-engineered weightless oil works on all hair types to strengthen, repair damage, reduce frizz at two levels of the hair fiber, and improve shine.

★ 4.8343 reviews
PEPTIDE PREP™ detox shampoo 8.5oz

PEPTIDE PREP™ detox shampoo 8.5oz

K18

$39

A color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™ to gently but effectively remove 99% product buildup*, 95% sebum* + 76% copper* for detoxified, refreshed hair. *Disclaimers

★ 4.567 reviews
salon blowout at home

salon blowout at home

K18

$98

Limited-edition mini set for salon-quality blowouts at home

★ 4.888 reviews
TripleBright oxidation defense purple shampoo

TripleBright oxidation defense purple shampoo

K18

$39

The first triple-action purple shampoo to remove metals + minerals, neutralize existing brass, and defend against future brassiness for blonde like new, hair like new*. * k18hair.com/disclaimers

★ 4.7156 reviews

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