a-Keratin Weightless Smoothing Mask

Peter Coppola

a-Keratin Weightless Smoothing Mask

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About this product

The Peter Coppola a-Keratin Weightless Smoothing Mask is a misc. Our analysis of its 22 ingredients (17 low-risk) rates it Excellent (91/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
22
Low-risk
17
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 6/5
Good for dry skin
Glyceryl Stearate Cetyl Alcohol Stearyl Alcohol Hydrolyzed Keratin Dimethicone Petrolatum
Caution for dry skin
Cetyl Alcohol Stearyl Alcohol Trideceth-12 Cetrimonium Chloride PEG-100 Stearate
Oily/Acne-Prone Skin 0/1
Caution for oily/acne-prone skin
Petrolatum
Sensitive Skin 2/4
Good for sensitive skin
Dimethicone Petrolatum
Caution for sensitive skin
Cetyl Alcohol Stearyl Alcohol Citric Acid Methylisothiazolinone

Ingredients list

22 total
Lower hazard (1) Higher hazard (7)
All22 Emulsion Stabilising6 Hair Conditioning6 Skin Conditioning6 Antistatic Agent6 Emulsifying5 Surfactant5 Viscosity Increasing Agent5 Emollient5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling)
1
A
Stearyl Alcohol
(Emulsion Stabilising, Fragrance, Emulsifying, Surfactant, Foambooster, Viscosity Increasing Agent, Emollient, Foam Boosting, Masking, Opacifying, Refatting, Viscosity Controlling)
3
B
Cetrimonium Chloride
(Antistatic Agent, Cosmetic Biocide, Emulsifying, Surfactant, Antimicrobial, Preservative)
PARAFFINUM LIQUIDUM
(Antistatic, Skin Conditioning Emollient, Skin Protecting, Solvent)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
3
B
Behentrimonium Chloride
(Antistatic Agent, Hair Conditioning, Preservative)
1
A
Glyceryl Stearate
(Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
3
A
PEG-100 Stearate
(Surfactant)
Fungal Acne
Fungal Acne Trigger
1
B
Hydrolyzed Wheat Protein
(Film Forming, Hair Conditioning, Skin Conditioning, Antistatic Agent)
1
A
Amodimethicone
(Antistatic Agent, Hair Conditioning)
Silicone
Silicone
1
Trideceth-12
(Emulsifying, Surfactant)
2
A
Hydrolyzed Keratin
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Film Forming, Humectant)
1
A
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling)
PARFUM
(Fragrance, Perfuming)
4
Petrolatum
(Hair Conditioning, Skin Conditioning Agent Occlusive, Skin Protecting, Emollient, Moisturising, Uv Absorber)
Bad for Oily Skin
Bad for Oily Skin
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Sodium Phytate
(Chelating Agent, Oral Care Agent)
6
B
Methylchloroisothiazolinone
(Preservative)
7
B
Methylisothiazolinone
(Preservative)
1
CI 15985
(Cosmetic Colorant)

My Ingredient Notes

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Key ingredients

Cetyl Alcohol
Emollient
Stearyl Alcohol
Emollient
PARAFFINUM LIQUIDUM
Skin Protecting
Dimethicone
Skin Protecting, Emollient
Glyceryl Stearate
Emollient
Hydrolyzed Wheat Protein
Skin Conditioning

Benefits

Good for dry skin

Concerns

Contains silicone
Not fungal acne (malassezia) safe
Methylisothiazolinone — higher EWG
May not suit oily/acne-prone 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
Cetyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceOpacifyingEmulsifyingSurfactantFoam boostingViscosity increasing agentEmollientMaskingViscosity controlling
Stearyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceEmulsifyingSurfactant- foamboosterViscosity increasing agentEmollientFoam boostingMaskingOpacifyingRefattingViscosity controlling
Cetrimonium Chloride
Antistatic agent, Cosmetic biocide
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Antistatic agentCosmetic biocideEmulsifyingSurfactantAntimicrobialPreservative
PARAFFINUM LIQUIDUM
Antistatic, Skin conditioning emollient
Limited public safety data.Read moreShow less
EWG N/A AntistaticSkin conditioning emollientSkin protectingSolvent
Behentrimonium Chloride
Antistatic agent, Hair conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Antistatic agentHair conditioningPreservative
Hydrolyzed Wheat Protein
Film forming, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Film formingHair conditioningSkin conditioningAntistatic agent
Trideceth-12
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 EmulsifyingSurfactant
Hydrolyzed Keratin
Hair conditioning, Nail conditioning agent
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Hair conditioningNail conditioning agentSkin conditioningAntistatic agentFilm formingHumectant
Hydroxyethylcellulose
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingFilm formingViscosity increasing agentBindingStabilisingViscosity controlling
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Sodium Phytate
Chelating agent, Oral care agent
Low-hazard ingredient.Read moreShow less
EWG 1 Chelating agentOral care agent
CI 15985
Cosmetic colorant
Low-hazard ingredient.Read moreShow less
EWG 1 Cosmetic colorant
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Glyceryl Stearate
Emollient, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientEmulsifying Fungal-acne trigger
PEG-100 Stearate
Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Surfactant Fungal-acne trigger
Amodimethicone
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioning Silicone
Petrolatum
Hair conditioning, Skin-conditioning agent - occlusive
Potentially comedogenic - can block poresRead moreShow less
EWG 4 Hair conditioningSkin-conditioning agent - occlusiveSkin protectingEmollientMoisturisingUv absorber Bad for Oily Skin
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry 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
Methylchloroisothiazolinone
Preservative
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR B Preservative
Methylisothiazolinone
Preservative
Higher-hazard ingredient.Read moreShow less
EWG 7 CIR B Preservative

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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