As a salon owner or professional stylist, it’s essential to understand the risks of formaldehyde in keratin smoothing treatments. This guide explains how formaldehyde affects salon safety, what regulations you should know, and how to...

Here’s everything you need to know about formaldehyde in hair smoothing treatments—including safe alternatives. Formaldehyde might sound like something you’d find in a lab or woodworking shop—but it’s also found in many hair care products....