OUAI Thick Hair Shampoo

Shampoo by OUAI

Note: the main cleanser includes olefin sulfonate. It is not a sulfate, but it is a strong cleanser.

Sulfate Free Shampoo for Color Treated Hair Sulfate Free Shampoo for Damaged Hair Sulfate Free Shampoo for Dry Hair Sulfate Free Shampoo for Frizzy Hair Sulfate Free Shampoo for Thick Hair

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Full ingredient 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)

Where this data comes from

• Ingredient list copied as published on the brand page: www.theouai.com, checked 2026-10-25.

Questions

Is OUAI Thick Hair Shampoo sulfate-free?

Yes, based on the ingredient list we checked. None of these appear: sodium lauryl sulfate, sodium laureth sulfate, ammonium lauryl sulfate, ammonium laureth sulfate, sodium coco-sulfate, sodium myreth sulfate, TEA-lauryl sulfate, or any other sulfate cleanser.

Is OUAI Thick Hair Shampoo fragrance-free?

Contains fragrance or essential oils.