Free Standard Shipping within the US on $50+ Orders
free returns. buy with confidence

You know what's FUN-damental? When your product works. We'll be breaking down key info + recommendations to help you get the most out of K18.


A lot happens between washes—think: dirt, oils, and product buildup. We’ve engineered two color-safe, pH-optimized shampoos for whatever state your hair’s in come wash day. 


Confused on what kind of clean you need? We got you. Consider this your guide to the perfect wash day—and canvas for self-expression. 

FUNdamentals 38: Wait, what shampoo should I use?

What’s great about our DAMAGE SHIELD pH protective shampoo is that it’s gentle enough to use every time you wash your hair. The balancing formula is certified microbiome-friendly and removes dirt + oils without disturbing your scalp’s natural protective barrier. Powered by plant-derived surfactants that deliver high foaming + cleansing power, you can expect zero harshness or buildup. The result? Less frizz, and smoother, healthier hair. 


If it’s been a while since your last deep clean or you use a lot of styling products, you’re due for a detox. This non-stripping lather removes any buildup holding you back, like dirt, oils, product, and metals. Powered by active skincare-inspired ingredients like activated charcoal and salicylic acid, just 1 wash removes 99% product buildup, 95% sebum + 76% copper*.  


The thing about hair: it’s constantly changing. When in doubt, feel for dirt or buildup. And don’t be afraid to switch up your wash day routine! Our science-powered shampoos have it handled. 


See ya soon for more FUNdamentals.


*Disclaimers

previous Previous

shop shampoos

PEPTIDE PREP™ detox shampoo
4.8
Rated 4.8 out of 5 stars
469 Reviews
Color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™
Pro Distribution Partners

Paramount Beauty Supply
USA
Salon Services Pro
USA
Salon Service Group
USA
Salonwax Pro
USA
Premier Beauty Supply
USA
Launching Soon
Ozdare - Australia
AU
 
Launching Soon
American Crew Ltd. - New Zealand
NZ
 
Launching Soon
PlayGround - Hong Kong
HK
 
Launching Soon
Session Map - Sweden
SE
 
Launching Soon
Cyprus
CY
 
Launching Soon
Belgium
BE
 
Coming Early 2021
Canada
CA
 
Coming Early 2021
Czech Republic
CZ
 
Coming Early 2021
Finland
FI
 
Coming Early 2021
France
FR
 
Coming Early 2021
Germany
DE
 
Coming Early 2021
Ireland
IR
 
Coming Early 2021
Italy
IT
 
Coming Early 2021
Netherlands
NL
 
Coming Early 2021
Norway
NO
 
Coming Early 2021
Singapore
SG
 
Coming Early 2021
Taiwan
TW
 
Coming Early 2021
UK
UK
 
Coming Early 2021
thank you for visiting!

You are now being redirected to an official partner website for this region where you can shop K18 Hair.

Changed your mind? Go back.

00:00
subscribe + save 15%
healthy hair on your schedule
Pick your K18 + how often you want to replen.
We’ll send you a heads up before every delivery.
You’re in charge. Change the way you pay, skip a shipment, or cancel anytime.
Blackfire Tracking