How much leave-in mask should you use?
A handy dosage guide for every hair type, density, and length. Read More

Limitless Expression for Everyone

Pride isn’t just a one-month celebration at K18—we’re committed to directly supporting the LGBTQIA+ community and amplifying their artistry every s... Read More
/ curly-coily-care

How AirWashâ„¢ Works for Curly + Coily Hair

K18 PRO stylist, Alifia Young, explains how our reinvention of dry shampoo is a game changer for all hair types and gives us her top tips for refre... Read More
/ hair science

Why Natural Ingredients Aren’t Necessarily Better for You (or the Planet)

The truth behind natural hair beauty products + how synthetic biology creates safer, more effective, more sustainable solutions. Read More
/ products + routines

How to Use AirWashâ„¢ to Extend Every Client's Style

Help them go 3 days longer between washes with NEW biotech-powered dry shampoo. Read More
/ products + routines

How to Use AirWashâ„¢ to Extend Every Client's Style

Help them go 3 days longer between washes with NEW biotech-powered dry shampoo. Read More
/ hair stories

How I Gained Confidence By Working With All Hair Types

Multicultural PRO colorist, Cherin Choi, shares her path to becoming a stylist and how she brings her unique definition of beauty to every service. Read More
contributors
Biochemist
Karl Schmieder

Karl is a biochemist + the CEO of MessagingLab, a company that works with other Scientists to help them tell their...

Scientist
Heleen Kibbelaar

Heleen holds a bachelor's and master's degree in (physical) chemistry from the University of Amsterdam and Utrecht University in the Netherlands....

Colorist
Aura Friedman

You name ‘em, Aura has colored their hair. From celebrities like Lady Gaga, magazines like Teen Vogue, and the...

Salon Owner
Christine Thompson

As a professional colorist at Spoke & Weal in Los Angeles, Christine specializes in corrective color, color change, and working...

Colorist
Linh Phan

Linh Phan, or as his loyal following calls him, BESCENE is an international educator, salon owner + CEO. Sharing his trend-spotting...

Scientist
Esther Olu

Esther Olu is an R&D formulation scientist, esthetician, educator, science communicator who is a passionate advocate for dispelling misinformation within the...