Skip to content

Cart (0)

Your cart is currently empty.

Return to shop

Free Shipping on U.S. Orders $75+ (Excludes Pro Shop)

N4 Rewards: Earn Points Toward Free Products

Save 15% on all subscription orders

Shop
Bestsellers
Discover
- Our Story
- Our Formulas
- Blog
- Press
- How To Videos
- FAQs
Hair Quiz
Rewards
Salon Locator
Professionals

Log in

Shop
Bestsellers
Discover
- Our Story
- Our Formulas
- Blog
- Press
- How To Videos
- FAQs
Hair Quiz
Rewards
Salon Locator
Professionals

0

Popular categories

Best sellers

Number 4 Hair Care

Number 4 Hair Care

Today's offers

Wellness week

Buy your weekday smoothies and get your weekend ones for free. (7 for the price of 5!)

WELLNESSWEEK

0

0

7

7

D

0

0

H

0

0

M

0

0

S

Almond and banana

50% off for a limited time.
Was $5.99 Now $3.00

0

0

7

7

D

0

0

H

0

0

M

0

0

S

Cucumber and melon

33% off for a limited time.
Was $5.99 Now $3.99

Birchbox Straight Style

Birchbox Straight Style

Share

Older post Newer post

Back to the blog

Shop

Collections
Offers
Bestsellers
Gifts, Kits & Sets
Pro-Sizes
Rewards
Subscribe & Save

Discover

Our Story
About Our Products
Hair Quiz
Blog
FAQs
Press
Collab with Us

Support

Salon Locator
My Account
Contact Us
Policies
Shipping & Returns
Accessibility
Safety Data Sheets
Terms & Conditions

Professionals

Pro Shop
Carry Us
Education

Keep In Touch

Get special offers and the first to know about product launches, tips, and tricks.

© 2025, Number 4 Hair Care
Powered by Shopify

© 2025, Number 4 Hair Care
Powered by Shopify