everything you need to know about pH + hair
what it is and why it matters. Read More
What is clarifying shampoo?
Hint: It tackles product buildup + boosts the efficacy of other products. Read More
The Discovery Of K18PEPTIDE™ Powering K18REPAIR™
A behind-the-scenes look at the history of K18 molecular repair—and how it reverses damage for all hair types in the salon and at home. Read More
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
How Fortification + Repair Are Different (And Why You Need Both!)
What these terms mean and how K18REPAIR™ delivers both for healthier hair through every transformation. Read Morecontributors
Karl Schmieder
Karl is a biochemist + the CEO of MessagingLab, a company that works with other Scientists to help them tell their...
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....
Aura Friedman
You name ‘em, Aura has colored their hair. From celebrities like Lady Gaga, magazines like Teen Vogue, and the...
Christine Thompson
As a professional colorist at Spoke & Weal in Los Angeles, Christine specializes in corrective color, color change, and working...
Esther Olu
Esther Olu is an R&D formulation scientist, esthetician, educator, science communicator who is a passionate advocate for dispelling misinformation within the...
