OUAI Medium Hair Shampoo — Hydrating, Sulfate-Free for Color-Treated & Dry Scalp, 10 oz

OUAI Medium Hair Shampoo is a hydrating, sulfate-free cleanser formulated to strengthen mid-density hair, reduce breakage, restore shine, and soothe dry scalps while remaining safe for color- and chemically-treated strands.

This shampoo was developed for hair that’s neither fine nor thick — the “in-between” textures that need moisture without heaviness. The formula blends coconut and babassu oils to lock in hydration, kumquat extract to boost surface shine, and keratin to smooth and detangle, all in a cruelty-free, paraben- and phthalate-free base. The scent is Mercer Street, a light, cosmopolitan mix of Italian lemon, jasmine, and white musk that leaves hair smelling fresh after each wash.

How does this shampoo improve strength and reduce breakage?

OUAI Medium Hair Shampoo combines conditioning oils and keratin to fortify strands and reduce mechanical damage during styling. Regular use helps hair feel smoother and less prone to snapping while you comb, dry, or style.

• Keratin helps smooth cuticles for easier detangling.
• Coconut oil seals split ends to minimize further breakage.
• Babassu oil hydrates the scalp and strengthens hair fibers.
• Gentle cleansing avoids stripping natural oils that protect hair strength.

Is this safe for color-treated, keratin-treated, or chemically processed hair?

Yes — the sulfate-free formulation is designed to cleanse without fading color or disrupting smoothing treatments. It maintains moisture balance so treated hair stays softer and more manageable between salon visits.

• No sulfates, parabens, or phthalates to aggressively strip color.
• Safe for keratin and other chemical treatments when used as directed.
• Gentle enough for frequent washing without dulling pigments.
• Pairs well with OUAI Medium Conditioner to extend treatment results.

Will this shampoo help with frizz and shine on everyday hair?

The combination of lightweight oils and kumquat extract targets frizz control while enhancing luster. It’s formulated to leave hair feeling hydrated and sleek rather than weighed down, so wave, curl, or straight patterns retain natural movement with reduced flyaways.

• Kumquat extract restores surface shine and light reflection.
• Keratin smooths the hair cuticle to reduce frizz.
• Babassu and coconut oils provide moisture without heaviness.
• Works on straight, wavy, curly, and coily textures.

How should I use it and what pairs best with it?

Apply to wet hair, lather at the roots, and work through to the ends before rinsing. For optimal results, follow with OUAI Medium Conditioner and finish with OUAI Hair Oil to lock in moisture and add shine.

• Use a quarter-sized amount for shorter hair; more for longer or thicker lengths.
• Focus shampoo on the scalp and roots; condition ends to avoid buildup.
• Combine with OUAI Medium Conditioner for balanced hydration and frizz control.
• Add OUAI Hair Oil to damp or dry hair for extra shine and manageability.

Who is this for: OUAI Medium Hair Shampoo is made for people with medium-density hair who want a hydrating, smoothing wash that’s safe for color and chemical treatments. It’s ideal if you need a formula that tames frizz, reduces breakage, and increases shine without heavy residue — perfect for daily or frequent use when you want manageable, healthier-looking hair.

Ingredients

Aqua (Water, Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl Cocoyl Taurate, Cocamide Mipa, Glycol Distearate, Parfum (Fragrance), Amodimethicone, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Glycerin, Citrus Japonica Fruit Extract, Panthenol, Hydrolyzed Keratin, Polyquaternium-7, Orbignya Oleifera Seed Oil, Cocos Nucifera (Coconut) Oil, Peg-150 Distearate, Sodium Lauroyl Glycinate, Cetrimonium Chloride (Anti-Static Agent/Agent Antistatique), C11-15 Pareth-7, Laureth-9, Trideceth-12, Cocoglucosides Hydroxypropyltrimonium Chloride, Acrylates Copolymer, Tocopherol, Peg-200 Hydrogenated Glyceryl Palmate, Peg-7 Glyceryl Cocoate, Disodium Edta, Citric Acid, Sodium Chloride, Sodium Hydroxide,, Tetrasodium Edta, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate, Benzyl Alcohol, Benzyl Salicylate, Limonene, Hexyl Cinnamal, Ci 15985 (Yellow 6)