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holiday gift guide

molecular by design

Infinite possibilities for hair + creative expression. 

Gifts for damaged hair

Bleach, heat, years of color: they've done it all. 

Gifts for damaged hair

Gifts for brassy blondes

Science that keeps blonde, blonde. 

Gifts Under 100 dollars

Gifts for scalp longevity

Skincare, for the scalp. For the person whose routine is ready for its next step.

Gifts Under 200 dollars

Gifts for fresh hair on the go

Biotech-powered fresh hair, wherever they’re headed.

Gifts Under 150 dollars

limited-edition holiday sets

Haircare routines inspired by the natural world + powered by biotech. 

4.7
Rated 4.7 out of 5 stars
7,735 Reviews
repair + protect set
4.7
Rated 4.7 out of 5 stars
7,583 Reviews
detox + repair set
4.7
Rated 4.7 out of 5 stars
627 Reviews
fresh hair on the go
4.7
Rated 4.7 out of 5 stars
9,953 Reviews
salon blowout at home

stocking stuffers

mini bottle of airwash dry shampoo surrounded by product details about how the product works. A spray bottle of Mini AirWash dry shampoo against a purple background.
4.7
Rated 4.7 out of 5 stars
699 Reviews
tsa-approved
mini AirWash™ dry shampoo
Leave-in molecular repair hair mask 15mL
4.7
Rated 4.7 out of 5 stars
9,515 Reviews
tsa-approved
Meta mini leave-in molecular repair hair mask
Two K18 hair care products on a blue background with promotional text. K18 AstroLift hair spray bottle on a blue background
4.7
Rated 4.7 out of 5 stars
494 Reviews
tsa-approved
Meta mini AstroLift™ reparative volume spray
4.8
Rated 4.8 out of 5 stars
553 Reviews
tsa-approved
mini DAMAGE SHIELD pH protective shampoo
4.8
Rated 4.8 out of 5 stars
707 Reviews
tsa-approved
mini DAMAGE SHIELD protective conditioner
one use of molecular repair hair oil delivers: clinically proven damage repair, 24-hr frizz control, 104% more shine, 78% reduction in split ends, and 450F heat protection molecular repair hair oil
4.8
Rated 4.8 out of 5 stars
1,060 Reviews
tsa-approved
Meta mini molecular repair hair oil
infographic detailing the benefits of k18 detox shampoo. A bottle of K18 PEPTIDE PREP detox shampoo against a teal background.
4.9
Rated 4.9 out of 5 stars
691 Reviews
tsa-approved
mini PEPTIDE PREP™ detox shampoo

hit reset, feel fresh

Fresh hair + scalp for up to  3 days*

Patented odorBIND™ technology recognizes, suspends + eliminates odors on contact.

K18 AirWash dry shampoo bottle with features listed on a purple background
AirWash™ dry shampoo
fresh hair on the go
mini bottle of airwash dry shampoo surrounded by product details about how the product works. A spray bottle of Mini AirWash dry shampoo against a purple background.
mini AirWash™ dry shampoo

molecular designs by Jen Stark

@Jenstark 

"I'm endlessly inspired by the natural world - how enormous shapes out in the universe can have the same patterns as tiny microorganisms under a microscope. My work recreates those organic, molecular designs to showcase the infinite possibilities of expression, just like K18's biology-first haircare."

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