Peter Thomas Roth Professional 3% Retinoid Plus
The Peter Thomas Roth Professional 3% Retinoid Plus is a misc. Our analysis of its 31 ingredients (25 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to dry skin.
The Peter Thomas Roth Professional 3% Retinoid Plus is a misc. Our analysis of its 31 ingredients (25 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to dry skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
Silicone
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Isononyl Isononanoate
(Skin Conditioning, Emollient, Antistatic Agent) |
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Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising) |
Silicone
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Hydroxypinacolone Retinoate
(Skin Conditioning) |
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Ceramide | |
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Ceramide EOP
(Hair Conditioning, Skin Conditioning) |
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Ceramide EOS
(Hair Conditioning, Skin Conditioning) |
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Ceramide NS
(Hair Conditioning, Skin Conditioning) |
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Ceramide NP
(Hair Conditioning, Skin Conditioning) |
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning) |
Good for Dry Skin
|
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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
|
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Tocopherol (Vitamin E) |
Good for Dry Skin
|
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Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
|
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Phytosphingosine
(Hair Conditioning, Skin Conditioning) |
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Caprooyl Sphingosine
(Hair Conditioning, Skin Conditioning) |
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Hydroxyphenyl Propamidobenzoic Acid
(Skin Conditioning) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Ethylhexyl Hydroxystearate
(Skin Conditioning, Emollient) |
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Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling) |
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Water
(Solvent) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
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Behenic Acid
(Opacifying, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Behenic Acid., Emulsifying) |
Fungal Acne Trigger
|
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Hydroxystearic Acid
(Cleansing, Emulsifying, Surfactant) |
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Ceteareth-25
(Cleansing, Emulsifying, Surfactant) |
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Polysilicone-11
(Film Forming) |
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4-t-Butylcyclohexanol
(Masking, Perfuming) |
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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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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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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.
Ascorbyl Palmitate
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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