Pro Strength Vitamin A/C/E Retinoid Treatment
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).
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).
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Water
(Solvent) |
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Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
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Isononyl Isononanoate
(Skin Conditioning, Emollient, Antistatic Agent) |
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
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C9-12 Alkane
(Solvent) |
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Glyceryl Stearate
(Emollient, Emulsifying) |
Fungal Acne Trigger
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Volcanic Soil
(Skin Conditioning) |
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Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling) |
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Hydroxypinacolone Retinoate
(Skin Conditioning) |
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Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling) |
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Caprylyl Methicone
(Skin Conditioning) |
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ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning) |
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
|
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Amylopectin
(Binding Agent, Viscosity Increasing Agent, Binding, Viscosity Controlling) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Coco-Caprylate/Caprate
(Emollient, Skin Conditioning) |
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Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling) |
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Sodium Phytate
(Chelating Agent, Oral Care Agent) |
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Diethylhexyl Syringylidenemalonate
(Skin Protecting) |
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Potassium Sorbate
(Fragrance, Preservative) |
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PEG-75 Stearate
(Surfactant) |
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Polyacrylate Crosspolymer-6
(Emulsion Stabilising, Viscosity Controlling) |
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PEG-100 Stearate
(Surfactant) |
Fungal Acne Trigger
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Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Ceteth-20
(Cleansing, Emulsifying, Surfactant) |
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Steareth-20
(Sufactant, Emulsifying, Surfactant) |
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1,2-Hexanediol
(Solvent) |
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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Polysorbate 60
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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t-Butyl Alcohol
(Denaturant, Fragrance, Solvent, Perfuming) |
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Sorbitan Isostearate
(Emulsifying, Surfactant) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
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.
The concentrations these actives are typically effective at in research — not a measurement of this product.
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
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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