FIRMx Collagen Serum

Peter Thomas Roth

Where to buy Possibly in stock

About this product

The Peter Thomas Roth FIRMx Collagen Serum is a serums, essence, ampoule. Our analysis of its 39 ingredients (38 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to dry skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
39
Low-risk
38
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 10/10
Good for dry skin
Soluble Collagen Squalane Isohexadecane Caprylyl Glycol Butylene Glycol Sodium Hyaluronate Glycerin Collagen Amino Acids Hydrolyzed Collagen Dimethicone
Caution for dry skin
Decyl Glucoside Lauryl Glucoside Sorbitan Isostearate Glycerin Hydroxystearic Acid Hydroxyproline Hexylene Glycol Sodium Hydroxide Polysorbate 20 Polysorbate 80
Oily/Acne-Prone Skin No data
Sensitive Skin 2/9
Good for sensitive skin
Glycerin Dimethicone
Caution for sensitive skin
Sodium Citrate Caffeine Butylene Glycol Glycerin Hexylene Glycol Citric Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol

Ingredients list

39 total
Lower hazard (1) Higher hazard (4)
All39 Skin Conditioning30 Hair Conditioning8 Fragrance8 Surfactant8 Humectant7 Solvent5 Emulsifying5 Emollient5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Collagen
(Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
Water
(Solvent)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Polysilicone-11
(Film Forming)
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
Caffeine
(Fragrance, Skin Conditioning, Masking)
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
1
Soluble Collagen
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Film Forming, Humectant)
1
Collagen Amino Acids
(Hair Conditioning, Skin Conditioning, Moisturising)
1
A
Hydrolyzed Collagen
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Emollient, Film Forming, Humectant)
1
Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine
(Skin Conditioning)
1
Palmitoyl Tripeptide-5
(Skin Conditioning)
1
Acetyl Tetrapeptide-2
(Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Hydroxyproline
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Surfactant)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
2
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
1
Ammonium Acryloyldimethyltaurate/VP Copolymer
(Viscosity Controlling)
1
A
Hydroxystearic Acid
(Cleansing, Emulsifying, Surfactant)
1
Magnesium Chloride
(Viscosity Controlling)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
3
B
Polysorbate 80
(Denaturant, Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
1
A
Sorbitan Isostearate
(Emulsifying, Surfactant)
1
B
Decyl Glucoside
(Cleansing, Emulsion Stabilising, Surfactant)
1
B
Lauryl Glucoside
(Cleansing, Surfactant)
1
Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate
(Skin Conditioning)
1
Leuconostoc/Radish Root Ferment Filtrate
(Antidandruff Agent, Antimicrobial)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
3
A
Potassium Sorbate
(Fragrance, Preservative)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
1
B
Isohexadecane
(Skin Conditioning, Emollient, Solvent)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
2
Mica
(Cosmetic Colorant, Opacifying)

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

Collagen
Skin Conditioning
Dimethicone
Skin Protecting, Emollient
Butylene Glycol
Skin Conditioning, Humectant
Glycerin
Humectant, Skin Protecting
Caffeine
Skin Conditioning
Squalane
Emollient, Skin Conditioning

Benefits

No standout benefits flagged for this product.

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Polysilicone-11
Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Film forming
Caffeine
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceSkin conditioningMasking
Squalane
Emollient, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHair conditioningRefattingSkin conditioning
Soluble Collagen
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioningAntistatic agentFilm formingHumectant
Collagen Amino Acids
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioningMoisturising
Hydrolyzed Collagen
Hair conditioning, Nail conditioning agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningNail conditioning agentSkin conditioningAntistatic agentEmollientFilm formingHumectant
Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Palmitoyl Tripeptide-5
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Acetyl Tetrapeptide-2
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Hydroxyproline
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioningAntistatic agentSurfactant
Sodium Citrate
Ph adjuster, Buffering agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Ph adjusterBuffering agentChelatingMasking
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
Emulsion stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 2 Emulsion stabilisingViscosity controlling
Ammonium Acryloyldimethyltaurate/VP Copolymer
Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Viscosity controlling
Hydroxystearic Acid
Cleansing, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A CleansingEmulsifyingSurfactant
+ 15 more — see the full ingredients list above
Collagen
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning Good for Dry Skin
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry 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
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant 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
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Polysorbate 80
Denaturant, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantEmulsifyingSurfactant Fungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning & evening: Suitable for both AM and PM use.

General guidance from this product's category and active ingredients — always follow the directions on the package.

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