/ hair science, science

How Intentional Formulation = Targeted Results in Fewer Steps

Every K18 ingredient serves a specific purpose to benefit hair—without fillers or fluff—so your routine does more with less. Read More
/ hair science, science

What Are Fusion Proteins?

And how K18 uses them to create never-before-seen benefits optimized for your hair’s biology. Read More
/ hair science, science

Where Does Hair Strength Come From?

Strength and elasticity comes from keratin protein building blocks. Your hair is made up of the cuticle and cortex. The cortex is responsible for s... Read More
/ hair science, science

Science Class 18: The science behind UV damage

You know how chemical services like bleaching, coloring, or heat styling can damage hair? Exposure to the environment can hurt hair the exact same ... Read More
/ hair science, science

Science Class 17: The science behind heat damage

Let’s talk about all things heat styling. Maybe your services involve hot tools—like a straightener, curling iron, or blow dryer. But did you know ... 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...