Niacinamide Glutathione Mask

One Thing

Where to buy Possibly in stock

About this product

The One Thing Niacinamide Glutathione Mask is a sheet mask. Our analysis of its 20 ingredients (15 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sheet Mask
Ingredients
20
Low-risk
15
Fragrance
Fragrance-free
Origin
South Korea

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 5/6
Good for dry skin
Glyceryl Stearate Citrate Linolenic Acid Linoleic Acid Betaine Butylene Glycol
Caution for dry skin
Linolenic Acid Linoleic Acid Xanthan Gum Polyglyceryl-10 Laurate Polyglyceryl-10 Myristate Hydrogenated Lecithin
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Sodium Ascorbyl Phosphate
Sensitive Skin 2/4
Good for sensitive skin
Sodium Ascorbyl Phosphate Tocopheryl Acetate
Caution for sensitive skin
Glutathione Linolenic Acid Linoleic Acid Butylene Glycol

Ingredients list

20 total
Lower hazard (1) Higher hazard (3)
All20 Skin Conditioning25 Fragrance6 Viscosity Controlling5 Antioxidant4 Emulsifying4 Surfactant3 Antistatic Agent3 Humectant3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
B
Glyceryl Stearate Citrate
(Skin Conditioning, Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
1
B
Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling)
1
B
Polyglyceryl-10 Laurate
(Skin Conditioning, Emulsifying, Surfactant)
1
Polyglyceryl-10 Myristate
(Skin Conditioning, Emulsifying, Surfactant)
1
Glutathione
(Fragrance, Reducing)
2
A
Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant)
Linum Usitatissimum Seed Flour
(Abrasive, Absorbent, Bulking, Viscosity Controlling)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
MELALEUCA ALTERNIFOLIA LEAF EXTRACT
(Perfuming, Skin Conditioning)
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning)
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
1
A
Sodium Ascorbyl Phosphate
(Antioxidant)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
Linolenic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Linolenic Acid., Antistatic Agent, Emollient, Perfuming)
Fungal Acne
Fungal Acne Trigger
1
Linoleic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Linoleic Acid., Antistatic Agent, Emollient)
Fungal Acne
Fungal Acne Trigger

My Ingredient Notes

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Key ingredients

Ethylhexylglycerin
Skin Conditioning
Xanthan Gum
Skin Conditioning
Glyceryl Stearate Citrate
Skin Conditioning, Emollient
Betaine
Humectant, Skin Conditioning
Polyglyceryl-10 Laurate
Skin Conditioning
Polyglyceryl-10 Myristate
Skin Conditioning

Benefits

Good for oily/acne-prone skin

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Disodium EDTA
Chelating agent, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Chelating agentViscosity controlling
Betaine
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioningViscosity controlling
Polyglyceryl-10 Laurate
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmulsifyingSurfactant
Polyglyceryl-10 Myristate
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningEmulsifyingSurfactant
Glutathione
Fragrance, Reducing
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceReducing
Hydrogenated Lecithin
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Skin conditioningEmulsifyingSurfactantSuspending agent- nonsurfactant
Linum Usitatissimum Seed Flour
Abrasive, Absorbent
Limited public safety data.Read moreShow less
EWG N/A AbrasiveAbsorbentBulkingViscosity controlling
MELALEUCA ALTERNIFOLIA LEAF EXTRACT
Perfuming, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A PerfumingSkin conditioning
3-O-ETHYL ASCORBIC ACID
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
ASCORBIC ACID
Antioxidant, Buffering
Limited public safety data.Read moreShow less
EWG N/A AntioxidantBufferingFragranceSkin conditioning
Sodium Ascorbyl Phosphate
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antioxidant
TOCOPHEROL
Antioxidant, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AntioxidantFragranceSkin conditioning
Glyceryl Stearate Citrate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientEmulsifying Fungal-acne trigger
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Linolenic Acid
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHair conditioningSkin conditioningSufactantsurfactant-cleansing agent is included as a function for the soap form of linolenic acid.Antistatic agentEmollientPerfuming Fungal-acne trigger
Linoleic Acid
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHair conditioningSkin conditioningSufactantsurfactant-cleansing agent is included as a function for the soap form of linoleic acid.Antistatic agentEmollient Fungal-acne trigger

How to use

How to use

  • 1 Morning works well: Antioxidants like vitamin C pair well with daytime use under sunscreen.

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.

Vitamin C (ascorbic) 5–20%

L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.

3-O-ETHYL ASCORBIC ACID, ASCORBIC ACID, Sodium Ascorbyl Phosphate

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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