Birchbox Subscribe to Birchbox Subscribe to BirchboxMan Shop Birchbox Shop BirchboxMan Gift Birchbox BirchboxMan
Makeup Hair Skincare Fragrance Bath & Body Lifestyle Accessories Tools Nails Gifts with Purchase $25 and Under Birchbox Exclusives Best Sellers Limited Edition Boxes Birchbox Discovery Kits Value Sets What’s New Sale Brands for Women Latest Articles and Videos
Skincare Hair Body Beard Shave Fragrance Apparel & Accessories Gifts with Purchase Sampled This Month $25 and Under Best Sellers BirchboxMan Exclusives BirchboxMan Collections Gift Sets Sale What’s New Brands for Men View the Guide

A relative newcomer, Number 4 takes inspiration from the worlds of fashion, art, science, and industrial design. The result is lab-tested formulas in sleek packaging that you'll happily display on your sink ledge or in your shower.

Hair

Loading Number 4 Hair Care products...