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

All Hair Is Hair—and the Same—on the Molecular Level

Let’s dive into how K18PEPTIDE™ repairs damage no matter what your hair looks like. Read More
/ products + routines

how molecular repair works for grey hair

Keep your clients’ hair soft and strong through every life stage. Read More
/ build your business

how to detangle hair after a lightening service (and send clients home with a new routine)

Color specialist Tabitha Dueñas breaks down her go-to strategy for you step by step. Read More
/ products + routines

When Should I Choose Damage Repair vs Protection?

How to create the best service routine, and what to send your clients home with. Read More
/ hair science

Why Does Hair Go Gray?

Hair texture changes as our hair ages, and so does its color—let’s dive into the hair follicle science behind graying hair. Read More
/ Future Now

How ProjectQ Powers Brighter Futures For Black + LGBTQIA+ Youth

Learn how our Future Now Initiative partner, ProjectQ, creates cycles of success for ex-foster youth and Black LGBTQIA+ community members.  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...