OUAI Thick Hair Shampoo — Hydrating Shea Butter & Keratin 10 oz for Full, Frizzy Hair

This shampoo is designed for people with straight, wavy, curly or coily hair who need intense hydration without harsh sulfates. The formula combines humectants and strengthening ingredients to clean hair and scalp while minimizing breakage and flyaways. It’s safe for color‑treated and chemically processed hair and pairs best with the OUAI Thick Conditioner and Hair Oil for a full moisture routine.

How does this shampoo help dry, frizzy or thick hair?

OUAI Thick Hair Shampoo prioritizes moisture and slip to make thick or unruly hair easier to manage. Shea butter and avocado oil deliver deep hydration, while marshmallow root adds softness and detangling properties. Keratin helps smooth the hair surface so strands reflect more shine and feel less prone to frizz.

• Shea butter: intense hydration that reduces roughness.
• Avocado oil: strengthens and helps repair split ends.
• Marshmallow root: improves slip for easier combing.
• Keratin: smooths cuticle and enhances shine.

Is this shampoo safe for color‑treated or chemically processed hair?

Yes—the formula is free of sulfates, parabens and phthalates, making it gentle on color and chemical treatments. Its conditioning actives help preserve moisture balance so color stays vibrant and processed hair is less likely to break. Always follow with a conditioner to seal hydration and protect treated strands.

• Sulfate‑free cleansing protects color longevity.
• Paraben‑ and phthalate‑free for gentler care.
• Formulated to work after keratin and smoothing treatments.
• Best when paired with OUAI Thick Conditioner for full benefits.

How do I use OUAI Thick Hair Shampoo for best results?

Apply a quarter‑sized amount to wet hair, focusing on the roots and gently working toward the ends to create a lather. Rinse thoroughly and repeat only if needed; follow with OUAI Thick Conditioner to lock in moisture. For extra smoothness, add a few drops of OUAI Hair Oil to damp ends before styling.

• Start with wet hair, massage into scalp, then rinse well.
• Follow with OUAI Thick Conditioner to detangle and hydrate.
• Use OUAI Hair Oil on ends to finish and add shine.
• Suitable for weekly deep conditioning when hair needs extra repair.

What does it smell like and what experience should I expect?

The scent profile is Mercer Street: a fresh, slightly floral citrus blend with notes of Italian lemon, jasmine and white musk. Expect a spa‑inspired wash day that feels moisturizing rather than stripping, with hair that rinses clean yet noticeably softer and easier to manage.

• Mercer Street fragrance: lemon, jasmine, white musk.
• Creates a moisturizing, non‑squeaky clean finish.
• Leaves hair more pliable for styling and heat tools.
• Clean, cruelty‑free and gluten‑free formulation.

Who is this for? OUAI Thick Hair Shampoo is made for anyone with thick, dry, frizz‑prone or textured hair seeking a sulfate‑free cleanser that hydrates and reduces breakage. It benefits color‑treated and chemically processed hair and works best when used as part of the OUAI Thick Hair system (shampoo, conditioner and oil). Choose this shampoo if you want a richly moisturizing wash that improves manageability, detangling and shine without harsh surfactants.

Ingredients

Aqua (Water, Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl Cocoyl Taurate, Cocamide Mipa, Glycol Distearate, Parfum (Fragrance), Cetrimonium Chloride (Anti-Static Agent/Agent Antistatique), Panthenol, Hydrolyzed Keratin, Avena Sativa (Oat) Peptide, Butyrospermum Parkii (Shea) Butter, Althaea Officinalis Root Extract, Persea Gratissima (Avocado) Oil, Glycerin, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Peg-150 Distearate, Sodium Lauroyl Glycinate, Amodimethicone, C11-15 Pareth-7, Laureth-9, Trideceth-12, Polyquaternium-7, Cocoglucosides Hydroxypropyltrimonium Chloride, Acrylates Copolymer, Sodium Chloride, Sodium Hydroxide, Tetrasodium Edta, Disodium Edta, Citric Acid, Peg-200 Hydrogenated Glyceryl Palmate, Peg-7 Glyceryl Cocoate, 1,2-Hexanediol, Caprylyl Glycol, Benzoic Acid, Potassium Sorbate, Phenoxyethanol, Sodium Benzoate, Benzyl Alcohol, Benzyl Salicylate, Limonene, Hexyl Cinnamal, Ci 14700 (Red 4), Ci 15985 (Yellow 6)