8 of the Worst Things You Can Do to Your Hair

Marjan, Alvarez, and Mills all agree that trims are absolutely necessary to keep hair healthy, but the frequency actually depends on your specific head of hair. We've all heard that if your goal is growth, you should cut away split ends every four to six weeks, but Marjan says this isn't totally accurate. "Getting your hair trimmed often will not make it grow faster. This will just depend on your hair health, your growth cycle, and how you take care of it at home. The ideal time between trims will vary from person to person," she notes.