Going to the hair salon is a part many Americans’ routines. But hair salon etiquette and expectations can vary, with one of the biggest questions being: to wash or not wash your hair before a visit to ...

It’s important to take a few minutes to wash your hair and make sure you rinse the product out well,” Vetrugno says. This will help ensure you get an even, thorough cleanse.

“We recommend doing two or three washes because you have to ensure complete removal of residue on the hair and scalp,” they tell me at the salon. “There are many products that leave behind remnants ...