Number 4 Hair Care

History

With how much we think about hair trends, and new styles, you’d think we’d expect a little more fashion sense from our products. Now we can — Number 4 Hair Care is an impossibly chic line that fills the need for hair care products that deliver high design and amazing results. The brand 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 in your shower.

Philosophy

Sartorial style should extend beyond your closet. Number 4 Hair Care creates products that are thoughtfully conceived, from the formula to the packaging. We love their spare aesthetic, but it’s not just about looks — the formulas are 100 percent vegan - sulfate-, paraben-, and gluten-free. All the products are based on the brand’s signature Liquid Complexes, four blends of natural ingredients that target issues like color fading, brittleness, and dullness. 

Birchbox Extra

We love how Number 4 Hair Care shampoos and conditioners come in tidy pump dispensers — they ensure that you get as little or as much product as you need.

Star Products

Lumiere d’hiver Reconstructing Masque revives dehydrated strands with jojoba seed oil; Fleur de Temps Volumizing Shampoo and Condition work to give hair lift and body; and L’Eau de Mer Hydrating Shampoo and Condition use vitamin B5 to soften and moisturize hair.

Birchbox Products

View All Products