Unlike skin, hair can’t repair itself. It needs treatment to improve. It’s your job to assess your client’s hair and help her determine what she needs to do to take her hair to its optimal health. Organic Colour Systems helps us break it down so you know how to figure out what’s wrong—and give her a prescription for healthier hair.

You probably aren’t able to analyze your client’s hair in a lab, but you can do a Wet Stretch Test to determine whether her hair needs protein or moisture (or even whether it’s already healthy!). Here’s how…