a-Keratin Hydrating & Repairing Conditioner

Peter Coppola

a-Keratin Hydrating & Repairing Conditioner

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About this product

The Peter Coppola a-Keratin Hydrating & Repairing Conditioner is a misc. Our analysis of its 25 ingredients (18 low-risk) rates it Excellent (92/100). 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
25
Low-risk
18
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 8/9
Good for dry skin
Butyloctanol Cetearyl Alcohol Cetyl Alcohol Stearyl Alcohol Argania Spinosa Kernel Oil Undeceth-11 Caprylyl Glycol Hydrolyzed Keratin
Caution for dry skin
Behentrimonium Methosulfate Cetyl Alcohol Stearyl Alcohol Undeceth-11 Undeceth-5 Hydroxypropyl Guar Hexylene Glycol Cetrimonium Bromide Cetrimonium Chloride
Oily/Acne-Prone Skin No data
Sensitive Skin 0/7
Caution for sensitive skin
Cetyl Alcohol Stearyl Alcohol Hexylene Glycol Citric Acid Phenoxyethanol Limonene Benzyl Salicylate

Ingredients list

25 total
Lower hazard (1) Higher hazard (7)
All25 Skin Conditioning15 Surfactant9 Fragrance9 Emulsion Stabilising8 Emulsifying8 Hair Conditioning7 Viscosity Increasing Agent6 Emollient6
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
1
B
Behentrimonium Methosulfate
(Antistatic Agent, Hair Conditioning, Surfactant)
3
B
Cetrimonium Bromide
(Antistatic Agent, Cosmetic Biocide, Emulsifying, Surfactant, Antimicrobial, Preservative)
1
Silicone Quaternium-16
(Hair Conditioning, Skin Conditioning)
1
Undeceth-11
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
1
Butyloctanol
(Humectant, Solvent)
1
Undeceth-5
(Emulsifying, Surfactant)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
1
A
Stearyl Alcohol
(Emulsion Stabilising, Fragrance, Emulsifying, Surfactant, Foambooster, Viscosity Increasing Agent, Emollient, Foam Boosting, Masking, Opacifying, Refatting, Viscosity Controlling)
1
A
Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling)
3
B
Cetrimonium Chloride
(Antistatic Agent, Cosmetic Biocide, Emulsifying, Surfactant, Antimicrobial, Preservative)
PARFUM
(Fragrance, Perfuming)
1
A
Hydroxypropyl Guar
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Antistatic Agent, Binding, Surfactant, Viscosity Controlling)
Olea Europaea Fruit Oil
(Fragrance, Perfuming, Skin Conditioning)
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
1
A
Argania Spinosa Kernel Oil
(Emollient, Skin Conditioning)
Fungal Acne
Fungal Acne Trigger
cocos nucifera oil
(Fragrance, Hair Conditioning, Perfuming, Skin Conditioning)
1
B
Hydrolyzed Wheat Protein
(Film Forming, Hair Conditioning, Skin Conditioning, Antistatic Agent)
2
A
Hydrolyzed Keratin
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Film Forming, Humectant)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
7
Benzyl Salicylate
(Fragrance, Uv Absorber, Masking)
Allergens
Allergens
6
Limonene
(Deodorant, Perfuming, Solvent)
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

Cetearyl Alcohol
Emollient
Silicone Quaternium-16
Skin Conditioning
Undeceth-11
Skin Conditioning, Emollient
Butyloctanol
Humectant
Caprylyl Glycol
Skin Conditioning, Emollient
Hexylene Glycol
Skin Conditioning

Benefits

No standout benefits flagged for this product.

Concerns

Contains paraben
Contains eu allergen
Not fungal acne (malassezia) safe
Benzyl Salicylate — 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
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
Behentrimonium Methosulfate
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentHair conditioningSurfactant
Cetrimonium Bromide
Antistatic agent, Cosmetic biocide
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Antistatic agentCosmetic biocideEmulsifyingSurfactantAntimicrobialPreservative
Silicone Quaternium-16
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning
Undeceth-11
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningEmollientEmulsifyingSurfactant
Butyloctanol
Humectant, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSolvent
Undeceth-5
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 EmulsifyingSurfactant
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Hexylene Glycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentEmulsifyingPerfumingSkin conditioningSurfactant
Stearyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceEmulsifyingSurfactant- foamboosterViscosity increasing agentEmollientFoam boostingMaskingOpacifyingRefattingViscosity controlling
Cetyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceOpacifyingEmulsifyingSurfactantFoam boostingViscosity increasing agentEmollientMaskingViscosity controlling
Cetrimonium Chloride
Antistatic agent, Cosmetic biocide
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Antistatic agentCosmetic biocideEmulsifyingSurfactantAntimicrobialPreservative
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Hydroxypropyl Guar
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingFilm formingViscosity increasing agentAntistatic agentBindingSurfactantViscosity controlling
+ 5 more — see the full ingredients list above
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Argania Spinosa Kernel Oil
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientSkin conditioning Fungal-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
Benzyl Salicylate
Fragrance, Uv absorber
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceUv absorberMasking Allergens
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent 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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