Pro Strength Vitamin A/C/E Retinoid Treatment

Peter Thomas Roth

Pro Strength Vitamin A/C/E Retinoid Treatment

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About this product

The Peter Thomas Roth Pro Strength Vitamin A/C/E Retinoid Treatment is a treatment. Our analysis of its 38 ingredients (33 low-risk) rates it Excellent (99/100).

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Treatments
Ingredients
38
Low-risk
33
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 8/9
Good for dry skin
Glyceryl Stearate Cetyl Alcohol Squalane Isononyl Isononanoate Caprylic/Capric Triglyceride Sodium Hyaluronate Coco-Caprylate/Caprate Dimethicone
Caution for dry skin
Cetyl Alcohol Sorbitan Isostearate t-Butyl Alcohol Ceteth-20 Steareth-20 Polysorbate 60 PEG-100 Stearate PEG-75 Stearate Silica
Oily/Acne-Prone Skin No data
Sensitive Skin 3/7
Good for sensitive skin
Diethylhexyl Syringylidenemalonate Dimethicone Tocopheryl Acetate
Caution for sensitive skin
Cetyl Alcohol Caprylic/Capric Triglyceride t-Butyl Alcohol Citric Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol

Ingredients list

38 total
Lower hazard (1) Higher hazard (4)
All38 Skin Conditioning18 Solvent8 Viscosity Controlling8 Emollient7 Surfactant7 Fragrance7 Emulsifying6 Masking4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
B
Isononyl Isononanoate
(Skin Conditioning, Emollient, Antistatic Agent)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
C9-12 Alkane
(Solvent)
1
A
Glyceryl Stearate
(Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
Volcanic Soil
(Skin Conditioning)
1
A
Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling)
Hydroxypinacolone Retinoate
(Skin Conditioning)
Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling)
1
Caprylyl Methicone
(Skin Conditioning)
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Amylopectin
(Binding Agent, Viscosity Increasing Agent, Binding, Viscosity Controlling)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
B
Coco-Caprylate/Caprate
(Emollient, Skin Conditioning)
1
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
1
Sodium Phytate
(Chelating Agent, Oral Care Agent)
1
Diethylhexyl Syringylidenemalonate
(Skin Protecting)
3
A
Potassium Sorbate
(Fragrance, Preservative)
3
A
PEG-75 Stearate
(Surfactant)
1
Polyacrylate Crosspolymer-6
(Emulsion Stabilising, Viscosity Controlling)
3
A
PEG-100 Stearate
(Surfactant)
Fungal Acne
Fungal Acne Trigger
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
2
B
Ceteth-20
(Cleansing, Emulsifying, Surfactant)
3
B
Steareth-20
(Sufactant, Emulsifying, Surfactant)
1
A
1,2-Hexanediol
(Solvent)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
3
B
Polysorbate 60
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
2
A
t-Butyl Alcohol
(Denaturant, Fragrance, Solvent, Perfuming)
1
A
Sorbitan Isostearate
(Emulsifying, Surfactant)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben

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

Tocopheryl Acetate
Antioxidant, Skin Conditioning
Isononyl Isononanoate
Skin Conditioning, Emollient
Caprylic/Capric Triglyceride
Emollient, Skin Conditioning
Pentylene Glycol
Skin Conditioning
Dimethicone
Skin Protecting, Emollient
Glyceryl Stearate
Emollient

Benefits

No standout benefits flagged for this product.

Concerns

Contains paraben
Contains silicone
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
Dimethyl Isosorbide
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Isononyl Isononanoate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientAntistatic agent
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
C9-12 Alkane
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Volcanic Soil
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Cetyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceOpacifyingEmulsifyingSurfactantFoam boostingViscosity increasing agentEmollientMaskingViscosity controlling
Hydroxypinacolone Retinoate
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Butyrospermum Parkii Butter
Skin conditioning, Viscosity controlling
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningViscosity controlling
Caprylyl Methicone
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
ASCORBIC ACID
Antioxidant, Buffering
Limited public safety data.Read moreShow less
EWG N/A AntioxidantBufferingFragranceSkin conditioning
Squalane
Emollient, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHair conditioningRefattingSkin conditioning
Amylopectin
Binding agent, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentViscosity increasing agentBindingViscosity controlling
+ 15 more — see the full ingredients list above
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
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
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
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
PEG-100 Stearate
Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Surfactant Fungal-acne trigger
Polysorbate 60
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant 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 Evening: Use at night — start 2–3× a week and build up as your skin tolerates it.
  • 3 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

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

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Often avoided
Retinoids (Vitamin A) (Hydroxypinacolone Retinoate)

Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.

This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Retinoids (Vitamin A) 0.01–1%

Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.

Hydroxypinacolone Retinoate

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.

ASCORBIC ACID

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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