How much leave-in mask should you use?
A handy dosage guide for every hair type, density, and length.
Leer más
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
Biotech vs. traditional cosmetic chemistry
Want real results? Choose biotech! Read More
everything you need to know about pH + hair
what it is and why it matters. Read More
Complete your Halloween look with hauntingly good hair
Forget the tricks–it’s time for treats! Read More
Community CALL! Join the #ColdRinseChallenge
Show your support for Breast Cancer Awareness Month. 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...
