Is Medium Hair Shampoo by OUAI safe?

Medium Hair Shampoo is rated STOP by Million Marker due to ingredients with known health concerns. We recommend considering safer alternatives.

What harmful chemicals does Medium Hair Shampoo avoid?

Million Marker evaluates products for harmful chemicals including BPA, phthalates, parabens, PFAS, flame retardants, and other endocrine-disrupting compounds. Medium Hair Shampoo has been analyzed and rated STOP based on its ingredient profile.

Where can I buy Medium Hair Shampoo?

You can purchase Medium Hair Shampoo directly from OUAI or search online retailers for the best prices and availability.

How does Million Marker rate Shampoos + Conditioners?

Million Marker rates Shampoos + Conditioners and other products on a GO/SLOW/STOP scale based on ingredient safety analysis. GO products are the safest choices, SLOW products have moderate concerns, and STOP products contain ingredients we recommend avoiding.

Products are split into three levels based on ingredient labels

Best choice

SLOW

Contains ingredients with possible health concerns

STOP

Contains harmful ingredients

STOP

OUAI

Medium Hair Shampoo

Last verified: April 7, 2026

Water (Aqua, 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
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
Yellow 6 (CI 15985)

Why This Product is Rated STOP

Medium Hair Shampoo by OUAI has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.

We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.

Learn more about how Million Marker scores products →