over 21,000 five star reviews!
start the hair quiz

hair care
personalized

shampoo + conditioner
as unique as you

★★★★★

21,000+ 5-star reviews

the internet’s top-rated customized hair care

I have tried every salon shampoo on the market and nothing has worked like this. It's a miracle.

michelle

Function of Beauty was the first shampoo I've ever had that has addressed ALL of my shampoo goals!

natasha

Literally my first use and I'm already sold. My hair is so soft and smells so good. So worth it!

destiny

The most perfect hair care formulas known to mankind. If you have not bought yourself a set, what are you waiting for?!

brittany

I feel like I have used the wrong shampoo for my entire life. This was a life changer!

ciara

It seemed like another fad shampoo. But, after just one wash my hair was transformed.

sarah

read the reviews

hair care - this time, it's personal

check out our latest seasonal fragrances, limited-edition colors, and more!

I designed my own shampoo, and I never want to buy it off the shelf again.

Leaves my hair looking healthy and glossy

Your Hair Will Thank You

My hair looked AND felt softer

My #hairgoals were achieved!

meet the world's first customized hair care company

our products are all...

paraben-free

cruelty-free

made in america

sulfate-free

vegan

take the hair quiz