White Algae Mask

OSEA

Where to buy Possibly in stock

About this product

The OSEA White Algae Mask is a wash-off mask. Our analysis of its 30 ingredients (22 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Wash-Off Mask
Ingredients
30
Low-risk
22
Fragrance
Fragrance-free
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 5/3
Good for dry skin
Algae Extract Prunus Mume Fruit Extract Sodium Hyaluronate Glycerin Camellia Sinensis Leaf Extract
Caution for dry skin
Undecylenoyl Glycine Glycerin Camellia Sinensis Leaf Extract
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Camellia Sinensis Leaf Extract
Sensitive Skin 6/7
Good for sensitive skin
Lycium Chinense Fruit Extract Resveratrol Glycerin Hesperidin Methyl Chalcone Camellia Sinensis Leaf Extract Aloe Barbadensis Leaf Juice
Caution for sensitive skin
Algae Extract Calendula Officinalis Flower Extract Glycerin Citric Acid Camellia Sinensis Leaf Extract Sorbic Acid Potassium Sorbate

Ingredients list

30 total
Lower hazard (1) Higher hazard (3)
All30 Skin Conditioning20 Fragrance6 Humectant6 Skin Protecting5 Antioxidant5 Hair Conditioning4 Skin Conditioning Emollient4 Oral Care Agent3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient)
1
Saccharomyces/Copper Ferment
(Skin Conditioning)
3
Saccharomyces/Manganese Ferment
(Skin Conditioning)
3
Saccharomyces/Zinc Ferment
(Skin Conditioning)
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
1
Resveratrol
(Antioxidant, Skin Protecting)
1
3
Titanium Dioxide
(Cosmetic Colorant, Opacifying, Sunscreen Agent, Uv Absorber)
Good for Sensitive Skin
Good for Sensitive Skin
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Macrocystis Pyrifera Extract
(Viscosity Controlling)
B
Aloe Barbadensis Leaf Juice
(Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
VITIS VINIFERA SEED OIL
(Skin Conditioning, Skin Conditioning Emollient)
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
Sesamum Indicum Seed Oil
(Fragrance, Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
1
Hesperidin Methyl Chalcone
(Antioxidant)
1
Dipeptide-2
(Skin Conditioning)
1
A
Palmitoyl Tetrapeptide-7
(Skin Conditioning)
glycyrrhiza glabra root extract
(Bleaching, Perfuming, Skin Conditioning, Skin Conditioning Emollient, Smoothing, Soothing)
1
Rubus Coreanus Fruit Extract
(Skin Conditioning)
1
Lycium Chinense Fruit Extract
(Antioxidant)
1
Prunus Mume Fruit Extract
(Humectant)
Oryza Sativa Bran
(Abrasive, Bulking)
Pyrus Communis Fruit Extract
(Skin Conditioning, Skin Protecting)
Camellia Sinensis Extract
(Antioxidant, Bleaching, Skin Conditioning)
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
1
A
Calendula Officinalis Flower Extract
(Masking, Perfuming, Skin Conditioning)
1
B
Undecylenoyl Glycine
(Cleansing, Hair Conditioning, Surfactant)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
3
A
Sorbic Acid
(Fragrance, Preservative)
3
A
Potassium Sorbate
(Fragrance, Preservative)

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

Algae Extract
Humectant, Skin Conditioning
Saccharomyces/Copper Ferment
Skin Conditioning
Saccharomyces/Manganese Ferment
Skin Conditioning
Saccharomyces/Zinc Ferment
Skin Conditioning
Glycerin
Humectant, Skin Protecting
Resveratrol
Antioxidant, Skin Protecting

Benefits

Good for dry skin
Good for oily/acne-prone skin

Concerns

Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Algae Extract
Fragrance, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHumectantOral care agentSkin conditioningEmollient
Saccharomyces/Copper Ferment
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Saccharomyces/Manganese Ferment
Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 Skin conditioning
Saccharomyces/Zinc Ferment
Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 Skin conditioning
Resveratrol
Antioxidant, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin protecting
Macrocystis Pyrifera Extract
Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Viscosity controlling
VITIS VINIFERA SEED OIL
Skin conditioning, Skin conditioning emollient
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning emollient
SIMMONDSIA CHINENSIS SEED OIL
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioningSkin conditioning emollient
Sesamum Indicum Seed Oil
Fragrance, Hair conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceHair conditioningSkin conditioningSkin conditioning emollient
Hesperidin Methyl Chalcone
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
Dipeptide-2
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Palmitoyl Tetrapeptide-7
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
glycyrrhiza glabra root extract
Bleaching, Perfuming
Limited public safety data.Read moreShow less
EWG N/A BleachingPerfumingSkin conditioningSkin conditioning emollientSmoothingSoothing
Rubus Coreanus Fruit Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
+ 9 more — see the full ingredients list above
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
Titanium Dioxide
Cosmetic colorant, Opacifying
Low-to-moderate hazard.Read moreShow less
EWG 1–3 Cosmetic colorantOpacifyingSunscreen agentUv absorber Good for Sensitive Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Aloe Barbadensis Leaf Juice
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR B Skin conditioning Good for Sensitive Skin
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin
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

How to use

How to use

  • 1 Where it fits: Use as the first step, on clean hands, before the rest of your routine.
  • 2 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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