OUAI Shampoo for Thick Hair

Editor's Take

OUAI gets thick-hair performance right, but the creamy lather and polished finish come from conventional chemistry with little interest in cleaner or lighter-footprint choices.

Four-pillar formula scores

• Performance: 7.8 / 10
• Innovative Ingredients: 6.5 / 10
• Clean Standards: 2.5 / 10
• Formula Sustainability: 2.2 / 10

The Verdict

The olefin sulfonate-led wash should cut through dense, oily hair, while conditioning agents help keep the result from feeling needlessly stripped. Panthenol, keratin, oat peptide, shea butter, and avocado oil add credible softness and temporary surface smoothing. The catch is poor clean and sustainability alignment, driven by fragrance and a long tail of persistent or petrochemical-derived wash-off ingredients. A credible thick-hair shampoo for strong cleansing and cosmetic smoothness, not a particularly thoughtful formula beyond performance.

Is OUAI Shampoo for Thick Hair clean?

DARE scores OUAI Shampoo for Thick Hair by OUAI 2.5 / 10 on Clean Standards, the human-health pillar of the Formulation Architecture Model™. That reading comes from the published INCI list read as a system — preservative, fragrance and surfactant choices in context — not from flagging single ingredients in isolation.

What are the key ingredients in OUAI Shampoo for Thick Hair?

The formula leads with Aqua (Water, Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl Cocoyl Taurate, Cocamide MIPA. DARE reads the full INCI list below in order, so position and pairing shape how each ingredient contributes under Performance and Innovative Ingredients.

How does DARE score OUAI Shampoo for Thick Hair?

Under the Formulation Architecture Model™, OUAI Shampoo for Thick Hair by OUAI scores Performance 7.8 / 10, Clean Standards 2.5 / 10, Innovative Ingredients 6.5 / 10, and Formula Sustainability 2.2 / 10. Each pillar is scored from the finished formula rather than from isolated ingredient flags.

Read the Formulation Architecture Model™ →

DARE vs single-ingredient apps like Yuka →

Full INCI list

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)