a-Keratin Best Friend Spray

Peter Coppola

Where to buy Possibly in stock

About this product

The Peter Coppola a-Keratin Best Friend Spray is a misc. Our analysis of its 39 ingredients (26 low-risk) rates it Excellent (93/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
39
Low-risk
26
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 13/9
Good for dry skin
Butyloctanol Cetearyl Alcohol Cetyl Alcohol Equisetum Arvense Extract Stearyl Alcohol Argania Spinosa Kernel Oil Undeceth-11 Caprylyl Glycol Glycerin Camellia Sinensis Leaf Extract Cyclopentasiloxane Myristyl Myristate Aloe Barbadensis Leaf Extract
Caution for dry skin
Cetyl Alcohol Equisetum Arvense Extract Stearyl Alcohol Undeceth-11 Undeceth-5 Glycerin Hexylene Glycol Camellia Sinensis Leaf Extract Cetrimonium Chloride
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Equisetum Arvense Extract Camellia Sinensis Leaf Extract
Sensitive Skin 5/11
Good for sensitive skin
Equisetum Arvense Extract Glycerin Camellia Sinensis Leaf Extract Tocopheryl Acetate Aloe Barbadensis Leaf Extract
Caution for sensitive skin
Cetyl Alcohol Stearyl Alcohol Glycerin Hexylene Glycol Citric Acid Camellia Sinensis Leaf Extract Phenoxyethanol Linalool Citronellol Limonene Benzyl Salicylate

Ingredients list

39 total
Lower hazard (1) Higher hazard (7)
All39 Skin Conditioning27 Fragrance12 Emollient11 Hair Conditioning8 Masking7 Emulsifying7 Perfuming6 Humectant6
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Quaternium-91
(Hair Conditioning)
3
B
Behentrimonium Chloride
(Antistatic Agent, Hair Conditioning, Preservative)
2
3
B
Myristyl Myristate
(Emollient, Opacifying, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
3
B
Cetrimonium Chloride
(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)
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
3
A
Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent)
Silicone
Silicone
PARFUM
(Fragrance, Perfuming)
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)
1
B
Hydrolyzed Wheat Protein
(Film Forming, Hair Conditioning, Skin Conditioning, Antistatic Agent)
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
Argania Spinosa Kernel Oil
(Emollient, Skin Conditioning)
Fungal Acne
Fungal Acne Trigger
Saccharum Officinarum Extract
(Moisturising, Skin Conditioning)
Malva Sylvestris Flower Extract
(Skin Conditioning)
Cystoseira Compressa Extract
(Skin Conditioning)
Urtica Dioica Leaf Extract
(Skin Conditioning)
Yucca Schidigera Root Extract
(Skin Conditioning)
1
Equisetum Arvense Extract
(Astringent, Emollient, Soothing, Tonic)
1
Melissa Officinalis Leaf Extract
(Skin Conditioning)
1
Chenopodium Quinoa Seed Extract
(Skin Conditioning)
Olea Europaea Fruit Oil
(Fragrance, Perfuming, Skin Conditioning)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
3
B
Aloe Barbadensis Leaf Extract
(Emollient, Humectant, Oral Care Agent, Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
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
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
Mentha Piperita Oil
(Fragrance, Perfuming, Refreshing, Tonic)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
7
Benzyl Salicylate
(Fragrance, Uv Absorber, Masking)
Allergens
Allergens
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
5
Citronellol
(Fragrance, 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

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

Benefits

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

Concerns

Contains paraben
Contains silicone
Contains eu allergen
Not fungal acne (malassezia) safe
Benzyl Salicylate — 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

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Quaternium-91
Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioning
Behentrimonium Chloride
Antistatic agent, Hair conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Antistatic agentHair conditioningPreservative
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
Cetrimonium Chloride
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
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
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
Hydrolyzed Wheat Protein
Film forming, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Film formingHair conditioningSkin conditioningAntistatic agent
+ 10 more — see the full ingredients list above
Myristyl Myristate
Emollient, Opacifying
Potentially comedogenic - can block poresRead moreShow less
EWG 2–3 CIR B EmollientOpacifyingSkin conditioning Bad for Oily Skin
Cyclopentasiloxane
Hair conditioning, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Hair conditioningSkin conditioningEmollientSolvent Silicone
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
Argania Spinosa Kernel Oil
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientSkin conditioning Fungal-acne trigger
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Aloe Barbadensis Leaf Extract
Emollient, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 1–3 CIR B EmollientHumectantOral care agentSkin conditioning Good for Sensitive Skin
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
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
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
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
Citronellol
Fragrance, Masking
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceMasking 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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