Peter Thomas Roth Un-Wrinkle Night
The Peter Thomas Roth Un-Wrinkle Night is a treatment. Our analysis of its 45 ingredients (38 low-risk) rates it Excellent (90/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
The Peter Thomas Roth Un-Wrinkle Night is a treatment. Our analysis of its 45 ingredients (38 low-risk) rates it Excellent (90/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry 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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Aloe Barbadensis Leaf Juice
(Skin Conditioning) |
Good for Sensitive 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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C12-15 Alkyl Benzoate
(Skin Conditioning, Emollient, Antimicrobial) |
|
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Glyceryl Stearate
(Emollient, Emulsifying) |
Fungal Acne Trigger
|
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Isocetyl Stearate
(Skin Conditioning, Emollient) |
Bad for Oily Skin
Fungal Acne Trigger
|
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Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
|
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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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Persea Gratissima (Avocado) Oil
(Skin Conditioning) |
Good for Dry Skin
Bad for Oily Skin
|
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
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Butyrospermum Parkii (Shea) Butter |
Bad for Oily Skin
Fungal Acne Trigger
|
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Propylene Glycol Stearate
(Fragrance, Skin Conditioning, Emollient, Emulsifying, Surfactant) |
Fungal Acne Trigger
|
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Retinol
(Skin Conditioning) |
Bad for Sensitive Skin
|
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Palmitoyl Oligopeptide
(Skin Conditioning, Sufactant) |
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Palmitoyl Tetrapeptide-7
(Skin Conditioning) |
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Acetyl Hexapeptide-8
(Humectant, Skin Conditioning) |
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Acetyl Octapeptide-3
(Humectant, Skin Conditioning) |
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Palmitoyl Tripeptide-5
(Skin Conditioning) |
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Dipeptide Diaminobutyroyl Benzylamide Diacetate
(Skin Conditioning) |
|
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Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine
(Skin Conditioning) |
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Palmitoyl Dipeptide-6 Diaminohydroxybutyrate | |
|
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Retinyl Palmitate (Vitamin A) |
Good for Dry Skin
Fungal Acne Trigger
|
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|
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Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
|
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|
|
Phospholipids
(Skin Conditioning) |
|
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Allantoin
(Skin Conditioning, Skin Protecting, Soothing) |
Good for Oily Skin
Good for Sensitive Skin
|
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
|
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
|
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Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
|
|
|
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Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent) |
Good for Oily Skin
Bad for Sensitive Skin
|
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Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
|
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
|
|
|
PEG-100 Stearate
(Surfactant) |
Fungal Acne Trigger
|
|
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
|
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Stearoxytrimethylsilane
(Skin Conditioning, Emollient) |
|
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Stearyl Alcohol
(Emulsion Stabilising, Fragrance, Emulsifying, Surfactant, Foambooster, Viscosity Increasing Agent, Emollient, Foam Boosting, Masking, Opacifying, Refatting, Viscosity Controlling) |
|
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Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant) |
|
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EDTA
(Chelating Agent) |
|
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Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling) |
|
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Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
|
|
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Sodium Phytate
(Chelating Agent, Oral Care Agent) |
|
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Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
|
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Diazolidinyl Urea
(Preservative) |
|
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Methylparaben
(Fragrance, Preservative) |
Paraben
|
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Propylparaben
(Fragrance, Preservative, Perfuming) |
Paraben
|
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
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.
Retinol, Retinyl Palmitate (Vitamin A)
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
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Glycolic 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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