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

What does biology-first mean?

Decoding the science behind our proprietary peptide–and tagline. Read More

Your hair is a biological masterpiece–and as strong as steel.

It might seem delicate, but hair is surprisingly tough stuff. Read More

Native American Heritage Month Spotlight: Rosebud Boutique Salon

Sisters Gabrielle Goodsell and Monique Lewis on the importance of practicing culture + honoring tradition through hair. Read More

Complete your Halloween look with hauntingly good hair

Forget the tricks–it’s time for treats! 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...