St. Barts Hair Oil

Ouai

Where to buy Possibly in stock

About this product

The Ouai St. Barts Hair Oil is a misc. Our analysis of its 41 ingredients (21 low-risk) rates it Excellent (87/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
41
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 15/1
Good for dry skin
C12-15 Alkyl Benzoate Passiflora Edulis Seed Oil Moringa Oleifera Seed Oil Dimethiconol Diisostearyl Malate Adansonia Digitata Seed Oil Borago Officinalis Seed Oil Isododecane Coco-Caprylate/Caprate Coconut Alkanes Hydrogenated Ethylhexyl Olivate Hydrogenated Olive Oil Unsaponifiables Jojoba Esters Dimethicone Cyclopentasiloxane
Caution for dry skin
Diisostearyl Malate
Oily/Acne-Prone Skin No data
Sensitive Skin 3/8
Good for sensitive skin
Jojoba Esters Dimethicone BHT
Caution for sensitive skin
Isododecane Phenoxyethanol Linalool Limonene BHT Benzyl Salicylate Coumarin Hydroxycitronellal

Ingredients list

41 total
Lower hazard (1) Higher hazard (7)
All41 Skin Conditioning34 Emollient15 Fragrance11 Hair Conditioning7 Skin Conditioning Emollient5 Masking5 Uv Absorber5 Solvent4
EWG CIR Ingredient Name & Cosmetic Functions Notes
3
A
Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent)
Silicone
Silicone
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
Prunus Amygdalus Dulcis Oil
(Skin Conditioning)
1
B
Isododecane
(Fragrance, Solvent, Emollient, Perfuming)
1
B
Hydrogenated Ethylhexyl Olivate
(Emollient, Skin Conditioning)
1
A
C12-15 Alkyl Benzoate
(Skin Conditioning, Emollient, Antimicrobial)
1
A
Phenyl Trimethicone
(Antifoaming Agent, Hair Conditioning, Skin Conditioning)
Silicone
Silicone
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
1
A
Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising)
Silicone
Silicone
1
A
Jojoba Esters
(Emollient, Moisturising, Skin Conditioning, Soothing)
Helianthus Annuus Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient)
1
A
Hydrogenated Olive Oil Unsaponifiables
(Hair Conditioning, Skin Conditioning, Emollient)
Oryza sativa bran oil
(Skin Conditioning, Skin Conditioning Emollient)
1
Kaempferia Galanga Root Extract
(Skin Conditioning, Uv Absorber)
1
A
Crambe Abyssinica Seed Oil
(Hair Conditioning, Skin Conditioning)
1
Coconut Alkanes
(Emollient, Solvent)
2
Beta-Carotene
(Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
daucus carota sativa root extract
(Skin Conditioning)
1
Amaranthus Caudatus Seed Extract
(Skin Conditioning)
1
A
Moringa Oleifera Seed Oil
(Emollient, Skin Conditioning)
1
A
Adansonia Digitata Seed Oil
(Hair Conditioning, Skin Conditioning, Emollient)
1
A
Passiflora Edulis Seed Oil
(Emollient)
1
A
Borago Officinalis Seed Oil
(Emollient, Skin Conditioning)
1
A
Diisostearyl Malate
(Skin Conditioning, Emollient, Surfactant)
Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling)
Glycine Soja Oil
(Perfuming, Skin Conditioning, Skin Conditioning Emollient)
1
B
Coco-Caprylate/Caprate
(Emollient, Skin Conditioning)
Helianthus Annuus Extract
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
Oryza Sativa Bran Extract
(Skin Conditioning, Skin Protecting)
6
A
BHT
(Antioxidant, Fragrance, Masking)
6
Ethylhexyl Methoxycinnamate
(Uv Absorber, Uv Filter)
Bad for Oily Skin
Bad for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
2
Polysilicone-15
(Uv Absorber, Uv Filter)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
PARFUM
(Fragrance, Perfuming)
7
Benzyl Salicylate
(Fragrance, Uv Absorber, Masking)
Allergens
Allergens
7
Coumarin
(Fragrance, Masking)
Allergens
Allergens
7
Hydroxycitronellal
(Fragrance, Masking)
Allergens
Allergens
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens

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

Cyclopentasiloxane
Skin Conditioning, Emollient
Dimethicone
Skin Protecting, Emollient
Prunus Amygdalus Dulcis Oil
Skin Conditioning
Isododecane
Emollient
Hydrogenated Ethylhexyl Olivate
Emollient, Skin Conditioning
C12-15 Alkyl Benzoate
Skin Conditioning, Emollient

Benefits

Fungal-acne (Malassezia) safe
Good for dry skin

Concerns

Contains paraben
Contains silicone
Contains eu allergen
Benzyl Salicylate — higher EWG
Coumarin — higher EWG
Hydroxycitronellal — higher EWG
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

Prunus Amygdalus Dulcis Oil
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Isododecane
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B FragranceSolventEmollientPerfuming
Hydrogenated Ethylhexyl Olivate
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmollientSkin conditioning
C12-15 Alkyl Benzoate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningEmollientAntimicrobial
SIMMONDSIA CHINENSIS SEED OIL
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioningSkin conditioning emollient
Jojoba Esters
Emollient, Moisturising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMoisturisingSkin conditioningSoothing
Helianthus Annuus Seed Oil
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioningSkin conditioning emollient
Hydrogenated Olive Oil Unsaponifiables
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollient
Oryza sativa bran oil
Skin conditioning, Skin conditioning emollient
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning emollient
Kaempferia Galanga Root Extract
Skin conditioning, Uv absorber
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningUv absorber
Crambe Abyssinica Seed Oil
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioning
Coconut Alkanes
Emollient, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 EmollientSolvent
daucus carota sativa root extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Amaranthus Caudatus Seed Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Moringa Oleifera Seed Oil
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientSkin conditioning
+ 13 more — see the full ingredients list above
Cyclopentasiloxane
Hair conditioning, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Hair conditioningSkin conditioningEmollientSolvent Silicone
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Phenyl Trimethicone
Antifoaming agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentHair conditioningSkin conditioning Silicone
Dimethiconol
Antifoaming agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentSkin conditioningEmollientMoisturising Silicone
Beta-Carotene
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 2 Skin conditioning Good for Dry Skin
BHT
Antioxidant, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR A AntioxidantFragranceMasking
Ethylhexyl Methoxycinnamate
Uv absorber, Uv filter
Potentially a skin irritantRead moreShow less
EWG 6 Uv absorberUv filter Bad for Oily SkinBad for Sensitive Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Benzyl Salicylate
Fragrance, Uv absorber
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceUv absorberMasking Allergens
Coumarin
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking Allergens
Hydroxycitronellal
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking 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

How to use

How to use

  • 1 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

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

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