Our editors independently select these products.

But that “rule” stuck with me.

That all changed when I spoke with Maria McCool, a long-time hairstylist and the founder ofCalista.

Young women wearing swimwear, showering together at outdoor shower while talking about how often should you wash your hair

Needless to say, I had questions for McCooland she had answers.

Think about it likeskincare: You wouldnt leave sweat and grime on your face for days, right?

So why would you treat your scalp any differently?

An unrecognizable male hairdresser combs the dried hair of middle aged blond woman sitting sideways

And it really does cause clogged pores that deter the hair from growing.

Calista Jousse Super-Size Cleanse & Condition 32oz.

Plenty of products still contain ingredients like sulfates, which can cause dryness and damage.

Various scattered hairdresser’s tool on blue, including user-friendly hair tools

The whole Jousse line is basically like drinking juice for your hair, she says.

I can juice three times a day if I want, she says.

Its not going to damage my hair.

alt

So, should you wash every day?

That said, McCool isnt about pushing a one-size-fits-all approach.

The best routine is the one that works foryou, she says.

BEVERLY HILLS, CALIFORNIA - MARCH 02: Shay Mitchell attends the 2025 Vanity Fair Oscar Party Hosted By Radhika Jones at Wallis Annenberg Center for the Performing Arts on March 02, 2025 in Beverly Hills, California. (Photo by Daniele Venturelli/Getty Images)

So if you love that just-washed feeling?

BRB, off to break a lifetime of hair-washing habits.

Got it, you’ve been added to our email list.

Hailey Bieber attends 2023 Baby2Baby Gala Presented By Paul Mitchell

Calista Jousse Super-Size Cleanse & Condition 32oz Duo