Thickening Spray

Ouai

Where to buy Possibly in stock

About this product

The Ouai Thickening Spray is a emulsion. Our analysis of its 39 ingredients (21 low-risk) rates it Excellent (93/100). Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Emulsion
Ingredients
39
Low-risk
21
Fragrance
Contains fragrance
Origin
United States

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 3/5
Good for dry skin
Sodium Hyaluronate Glycerin Hydrolyzed Soy Protein
Caution for dry skin
Anethole Glycerin Terpineol Polysorbate 20 Eugenol
Oily/Acne-Prone Skin No data
Sensitive Skin 1/15
Good for sensitive skin
Glycerin
Caution for sensitive skin
Linalyl Acetate Anethole Glycerin Tartaric Acid Terpineol Tetramethyl Acetyloctahydronaphthalenes Citric Acid Carvone Sodium Benzoate Potassium Sorbate Phenoxyethanol Linalool Benzyl Alcohol Limonene Eugenol

Ingredients list

39 total
Lower hazard (1) Higher hazard (7)
All39 Fragrance17 Skin Conditioning13 Masking10 Perfuming7 Film Forming6 Humectant6 Solvent5 Hair Conditioning5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
VP/VA Copolymer
(Binding, Film Forming, Hair Fixing)
1
Amaranthus Caudatus Seed Extract
(Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
Ceratonia Siliqua Seed Extract
(Skin Conditioning)
A
Hydrolyzed Soy Protein
(Antistatic Agent, Hair Conditioning, Humectant, Skin Conditioning)
Zea Mays Starch
(Abrasive, Absorbent, Anticaking, Skin Protecting, Viscosity Controlling)
1
Polyquaternium-16
(Antistatic Agent, Film Forming, Hair Fixing)
Hydroxypropylgluconamide
(Hair Conditioning, Humectant)
Hydroxypropylammonium Gluconate
(Hair Conditioning, Humectant)
1
A
Guar Hydroxypropyltrimonium Chloride
(Antistatic Agent, Hair Conditioning, Viscosity Increasing Agent, Film Forming, Skin Conditioning, Viscosity Controlling)
3
A
Polyquaternium-7
(Antistatic Agent, Film Forming, Hair Fixing)
Pisum Sativum Sprout Extract
(Skin Conditioning)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Tartaric Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Trisodium Ethylenediamine Disuccinate
(Chelating Agent)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
3
A
Potassium Sorbate
(Fragrance, Preservative)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
PARFUM
(Fragrance, Perfuming)
7
Eugenol
(Denaturant, Fragrance, Masking, Tonic)
Allergens
Allergens
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
1
Tetramethyl Acetyloctahydronaphthalenes
(Masking, Perfuming, Skin Conditioning)
1
Eucalyptus Globulus Bad for Sensitive Skin
Bad for Sensitive Skin
Citrus Aurantium Bergamia Peel Oil
Citrus Limon Peel Oil
(Fragrance, Perfuming, Skin Conditioning)
MENTHA VIRIDIS LEAF OIL
(Astringent, Fragrance, Skin Conditioning)
Pinene
(Antifoaming, Fragrance)
2
Carvone
(Flavoring Agent, Fragrance, Perfuming)
1
Linalyl Acetate
(Fragrance, Masking)
Lavandula Hybrida Extract
(Skin Conditioning Emollient)
1
Anethole
(Denaturant, Flavoring Agent, Fragrance, Masking)
1
Terpineol
(Denaturant, Masking, Perfuming, Solvent)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Amaranthus Caudatus Seed Extract
Skin Conditioning
Sodium Hyaluronate
Skin Conditioning, Humectant
Glycerin
Humectant, Skin Protecting
Ceratonia Siliqua Seed Extract
Skin Conditioning
Hydrolyzed Soy Protein
Humectant, Skin Conditioning
Zea Mays Starch
Skin Protecting

Benefits

No standout benefits flagged for this product.

Concerns

Contains paraben
Contains eu allergen
Not fungal acne (malassezia) safe
Eugenol — higher EWG
May not suit dry skin
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
VP/VA Copolymer
Binding, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A BindingFilm formingHair fixing
Amaranthus Caudatus Seed Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Ceratonia Siliqua Seed Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Hydrolyzed Soy Protein
Antistatic agent, Hair conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR A Antistatic agentHair conditioningHumectantSkin conditioning
Zea Mays Starch
Abrasive, Absorbent
Limited public safety data.Read moreShow less
EWG N/A AbrasiveAbsorbentAnticakingSkin protectingViscosity controlling
Polyquaternium-16
Antistatic agent, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Antistatic agentFilm formingHair fixing
Hydroxypropylgluconamide
Hair conditioning, Humectant
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningHumectant
Hydroxypropylammonium Gluconate
Hair conditioning, Humectant
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningHumectant
Guar Hydroxypropyltrimonium Chloride
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningViscosity increasing agentFilm formingSkin conditioningViscosity controlling
Polyquaternium-7
Antistatic agent, Film forming
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antistatic agentFilm formingHair fixing
Pisum Sativum Sprout Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
TOCOPHEROL
Antioxidant, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AntioxidantFragranceSkin conditioning
Trisodium Ethylenediamine Disuccinate
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 1 Chelating agent
+ 13 more — see the full ingredients list above
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Tartaric Acid
Fragrance, Ph adjuster
Skin irritation can occur at high concentrationRead moreShow less
EWG 1 FragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Benzyl Alcohol
External analgesic, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR A External analgesicFragranceOral health care drugPreservativeSolventViscosity decreasing agentMasking Allergens
Eugenol
Denaturant, Fragrance
Higher-hazard ingredient.Read moreShow less
EWG 7 DenaturantFragranceMaskingTonic Allergens
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens
Linalool
Fragrance, Deodorant
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceDeodorantMasking Allergens
Eucalyptus Globulus
Other
Potentially a skin irritantRead moreShow less
EWG 1 Bad for Sensitive Skin

How to use

How to use

  • 1 Evening, start slow: Best in the PM a few times a week to begin with; avoid layering with other strong actives the same night.
  • 2 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Officially notified as a cosmetic in Malaysia (NPRA). Government registration record.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

AHA (acid exfoliant) 5–10% (OTC)

OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.

Tartaric Acid

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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