PRO Strength Niacinamide Discoloration Treatment
The Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment is a treatment. Our analysis of its 45 ingredients (39 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.
The Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment is a treatment. Our analysis of its 45 ingredients (39 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.
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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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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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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Tranexamic Acid
(Cosmetic Astringent, Skin Conditioning) |
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
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Alpha-Arbutin
(Antioxidant, Skin Conditioning) |
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Glyceryl Stearate
(Emollient, Emulsifying) |
Fungal Acne Trigger
|
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C9-12 Alkane
(Solvent) |
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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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Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Kojic Acid
(Antioxidant) |
Good for Dry Skin
|
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Morus Alba Root Extract
(Bleaching, Skin Conditioning) |
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Resveratrol
(Antioxidant, Skin Protecting) |
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Scutellaria Lateriflora Extract
(Skin Conditioning) |
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Hydrangea Arborescens Root Extract
(Skin Conditioning) |
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Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning) |
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Hydrolyzed Vegetable Protein
(Hair Conditioning, Skin Conditioning, Antistatic Agent) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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PEG-100 Stearate
(Surfactant) |
Fungal Acne Trigger
|
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
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Polyacrylate Crosspolymer-6
(Emulsion Stabilising, Viscosity Controlling) |
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PEG-75 Stearate
(Surfactant) |
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Ceteareth-20
(Cleansing, Emulsifying, Surfactant) |
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Steareth-20
(Sufactant, Emulsifying, Surfactant) |
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Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer
(Emulsion Stabilising) |
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Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising) |
Silicone
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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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Titanium Dioxide
(Cosmetic Colorant, Opacifying, Sunscreen Agent, Uv Absorber) |
Good for Sensitive Skin
|
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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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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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Polysorbate 60
(Emulsifying, Surfactant) |
Fungal Acne Trigger
|
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Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
|
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t-Butyl Alcohol
(Denaturant, Fragrance, Solvent, Perfuming) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant) |
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Sorbitan Isostearate
(Emulsifying, Surfactant) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
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 →
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide
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.
From the community
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