Best Hair Shampoos and Conditioners

Your Hair Deserves a Better Shampoo and Conditioner 

Most hair concerns do not start at the styling step. They start at the wash. The wrong shampoo strips what your hair actually needs. The wrong conditioner either weighs it down or leaves it wanting more. Getting this step right is what makes everything that follows easier.

The Number 4 Shampoo and Conditioner collection covers every hair type and concern, from fine and flat to dry and damaged, with clean, vegan formulas made in the USA. Whatever your hair is asking for, the answer starts here.

Find the Shampoo and Conditioner Pair That Matches Your Hair

Fine or flat hair benefits from Volumizing Shampoo and Volumizing Conditioner, which lift at the root and add body without any heaviness. Grab both as the Volumizing Duo for a complete routine.

Dry or thirsty hair gets what it needs from Hydrating Shampoo and Hydrating Conditioner, which replenish moisture from the very first wash without weighing hair down. Both are available together as the Hydrating Duo.

If your hair feels coated or product-heavy, Daily Clarifying Shampoo resets the scalp and clears buildup so your other products can actually work. For damaged or color-treated hair, pair any shampoo with Reconstructing Hair Masque for deeper repair between washes. Super Comb Prep & Protect detangles and shields hair before styling as a leave-in treatment.

Premium Shampoo and Conditioner Formulas Your Hair Will Thank You For

Every formula here is sodium and sulfate-free, paraben-free, vegan, and made in the USA. Botanicals like acai berry, hibiscus, vitamin B5, and moringa seed extract work at the fiber level to strengthen, hydrate, and protect without stripping or buildup. Signature Parisian-inspired fragrances make every wash feel less like a routine and more like a ritual.

Not Sure Which Shampoo and Conditioner Is Right for You?

Take the Hair Quiz for a personalized wash routine. Or shop by concern, the Hydrate Collection for moisture, Volume Collection for fullness, or Treatments for deeper repair options.