peter-thomas-roth Peter Thomas Roth Professional Strength 3% Retinoid Plus
peter-thomas-roth Peter Thomas Roth Professional Strength 3% Retinoid Plus lists 31 ingredients on its label, 28 decoded. See what each one does, its irritancy and comedogenic tendency, and its status in national inventories.
Ingredients overview
Label order. Colour is our internal rating: green routine, yellow restricted or worth a look, red prohibited or high-risk, grey not yet decoded.
Ingredients are listed in label order; the order reflects the label only, not exact concentrations.
- Cyclopentasiloxane
- Isononyl Isononanoate
- Dimethyl Isosorbide
- Dimethiconol
- Hydroxypinacolone Retinoate 0.3%
- Ceramide AP
- Ceramide Eop
- Ceramide Eos
- Ceramide Ns
- Ceramide NP
- Sodium Hyaluronate
- Sodium PCA
- Glycerin
- Tocopherol
- Ascorbyl Palmitate
- Caprooyl Phytosphingosine
- Caprooyl Sphingosine
- Hydroxyphenyl Propamidobenzoic Acid
- Ethylhexylglycerin
- Ethylhexyl Hydroxystearate
- Cholesterol
- Water/Aqua/Eau
- Pentylene Glycol
- Butylene Glycol
- Behenic Acid
- Hydroxystearic Acid
- Ceteareth-25
- Polysilicone-11
- 4-T-Butylcyclohexanol
- Cetyl Alcohol
- Phenoxyethanol
Highlights
Free of alcoholFree of parabensFree of sulfatesFree of mineral oilFree of essential oilsFree of formaldehyde releasersContains siliconesContains fragranceContains animal-derived
Formulation view Features a volatile silicone base with isosorbide for light texture. Contains 0.3% hydroxypinacolone retinoate, complexed with five ceramides and cholesterol for barrier repair. Includes antioxidants. Suitable for tolerant skin seeking efficacy. Factory view: clear active concentration and barrier-focused system minimize irritation risk.
Key ingredients
- SKIN CONDITIONING - EMOLLIENT
- Cyclopentasiloxane
- ANTISTATIC
- Isononyl Isononanoate
- SOLVENT
- Dimethyl Isosorbide
- ANTIFOAMING
- Dimethiconol
- HAIR CONDITIONING
- Ceramide APCeramide EopCeramide EosCeramide Ns
Other ingredients
Hydroxypinacolone Retinoate 0.3%Ceramide NPSodium HyaluronateSodium PCAGlycerinTocopherolAscorbyl PalmitateCaprooyl PhytosphingosineCaprooyl SphingosineHydroxyphenyl Propamidobenzoic AcidEthylhexylglycerinEthylhexyl HydroxystearateCholesterolWater/Aqua/EauPentylene GlycolButylene GlycolBehenic AcidHydroxystearic AcidCeteareth-25Polysilicone-114-T-ButylcyclohexanolCetyl AlcoholPhenoxyethanol
Skim through
| Ingredient | What it does | Irr. · Com. | Rating |
|---|---|---|---|
| Cyclopentasiloxane | SKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING, SKIN CONDITIONING, SOLVENT | 0 · 0 | Green |
| Isononyl Isononanoate | ANTISTATIC, SKIN CONDITIONING - EMOLLIENT, SKIN CONDITIONING | 0 · 0 | Green |
| Dimethyl Isosorbide | SOLVENT, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Dimethiconol | ANTIFOAMING, SKIN CONDITIONING - EMOLLIENT, MOISTURISING | 0 · 3 | Green |
| Hydroxypinacolone Retinoate 0.3% | Not decoded yet | — | — |
| Ceramide AP | HAIR CONDITIONING, SKIN CONDITIONING | 0 · 0 | Green |
| Ceramide Eop | HAIR CONDITIONING, SKIN CONDITIONING | 0 · 0 | Green |
| Ceramide Eos | HAIR CONDITIONING, SKIN CONDITIONING | 0 · 0 | Green |
| Ceramide Ns | HAIR CONDITIONING, SKIN CONDITIONING - MISCELLANEOUS | 0 · 0 | Green |
| Ceramide NP | HAIR CONDITIONING, SKIN CONDITIONING - MISCELLANEOUS | 0 · 0 | Green |
| Sodium Hyaluronate | HUMECTANT, SKIN CONDITIONING | 0 · 0 | Green |
| Sodium PCA | ANTISTATIC, HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING | – · 0 | Green |
| Glycerin | DENATURANT, HAIR CONDITIONING, HUMECTANT, ORAL CARE, SKIN PROTECTING, SOLVENT, VISCOSITY CONTROLLING, PERFUMING, FRAGRANCE, SKIN CONDITIONING - HUMECTANT | 0 · 0 | Green |
| Tocopherol | ANTIOXIDANT, FRAGRANCE, SKIN CONDITIONING - MISCELLANEOUS, SKIN CONDITIONING - OCCLUSIVE | 0 · 0 | Green |
| Ascorbyl Palmitate | ANTIOXIDANT, FRAGRANCE | — | Green |
| Caprooyl Phytosphingosine | HAIR CONDITIONING, SKIN CONDITIONING | 0 · – | Green |
| Caprooyl Sphingosine | HAIR CONDITIONING, SKIN CONDITIONING | 0 · – | Green |
| Hydroxyphenyl Propamidobenzoic Acid | SKIN CONDITIONING | 0 · 0 | Green |
| Ethylhexylglycerin | DEODORANT, SKIN CONDITIONING | 0 · 0 | Green |
| Ethylhexyl Hydroxystearate | SKIN CONDITIONING - EMOLLIENT | 0 · 0 | Green |
| Cholesterol | SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING, SKIN CONDITIONING, LIGHT STABILIZER, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Water/Aqua/Eau | 溶剂 | 0 · 0 | Green |
| Pentylene Glycol | SKIN CONDITIONING, SOLVENT | 0 · 0 | Green |
| Butylene Glycol | HUMECTANT, FRAGRANCE, SKIN CONDITIONING, SOLVENT, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Behenic Acid | CLEANSING, SURFACTANT - EMULSIFYING, OPACIFYING, SURFACTANT - CLEANSING | 0 · 5 | Green |
| Hydroxystearic Acid | CLEANSING, SURFACTANT - EMULSIFYING, SURFACTANT - CLEANSING | 0 · 0 | Green |
| Ceteareth-25 | Not decoded yet | — | — |
| Polysilicone-11 | Not decoded yet | — | — |
| 4-T-Butylcyclohexanol | FRAGRANCE, PERFUMING | 0 · – | Green |
| Cetyl Alcohol | SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING, EMULSION STABILISING, SURFACTANT - FOAM BOOSTING, FRAGRANCE, OPACIFYING, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING | 1 · 1 | Green |
| Phenoxyethanol | ANTIMICROBIAL, PRESERVATIVE · 限制 V/29 | 1 · 0 | Yellow |
Ingredients explained
- Cyclopentasiloxane
- Cyclopentasiloxane for emollient/solvent; volatile silicone, smooth feel, check VOC regulations.
- Isononyl Isononanoate
- Light, low-viscosity ester emollient; excellent spreadability, good for gels and light lotions
- Dimethyl Isosorbide
- Dimethyl isosorbide as solvent and viscosity control; low toxicity, common use
- Dimethiconol
- Dimethiconol; silicone emollient providing silky feel and reducing friction; moderate comedogenicity, avoid excess.
- Hydroxypinacolone Retinoate 0.3%
- Not decoded yet
- Ceramide AP
- Ceramide analog for barrier repair; best results when combined with cholesterol and free fatty acids
- Ceramide Eop
- Ceramide EOP, repairs skin barrier lipids; often blended with cholesterol and fatty acids.
- Ceramide Eos
- Barrier-repairing ceramide, 0.1–1%; optimal with hydrated lipids, suitable for dry skin
- Ceramide Ns
- Ceramide NS for barrier repair; gentle and suitable for sensitive or dry skin.
- Ceramide NP
- Ceramide N3 for barrier repair; lipophilic, needs oil phase or emulsion, avoid high standalone use.
- Sodium Hyaluronate
- Potent humectant at 0.1–2%; different MW for penetration depth, high levels may draw moisture
- Sodium PCA
- Sodium PCA, NMF component, 1-10% humectant; salty/tacky at high levels.
- Glycerin
- Workhorse humectant at 3–10%; tacky at high levels, pair with occlusives
- Tocopherol
- Natural antioxidant (vitamin E) at 0.1–1%; prone to oxidation, store protected from light
- Ascorbyl Palmitate
- Ascorbyl palmitate, lipophilic Vit C ester, antioxidant; oxidizes, needs light/air protection.
- Caprooyl Phytosphingosine
- Plant-derived biomimetic lipid for hair and skin conditioning.
- Caprooyl Sphingosine
- Biomimetic lipid for hair and skin conditioning; often formulated with other lipids.
- Hydroxyphenyl Propamidobenzoic Acid
- Bioactive marker in Evening Primrose Oil, antioxidant and soothing; used at low levels
- Ethylhexylglycerin
- Mild conditioner and preservative booster at 0.5–1%; reduces preservative load, smooth feel
- Ethylhexyl Hydroxystearate
- Ester emollient 1-5%; non-comedogenic, silky, compatible with sunscreens
- Cholesterol
- Cholesterol; barrier repair lipid mimicking stratum corneum; often blended with ceramides, plant or fermentation source.
- Water/Aqua/Eau
- Primary aqueous solvent and carrier; no specific incompatibilities, focus on microbial stability.
- Pentylene Glycol
- Polyol humectant at 1-3%; low irritancy, suitable for sensitive skin
- Butylene Glycol
- Polyol humectant and solvent at 1–5%; aids solubilization, light feel
- Behenic Acid
- Behenic acid, emulsifier and thickener; high comedogenic rating, limit use on acne-prone skin.
- Hydroxystearic Acid
- 羟基硬脂酸，多元醇型乳化剂，可增强乳化稳定性，具一定保湿与成膜性
- Ceteareth-25
- Not decoded yet
- Polysilicone-11
- Not decoded yet
- 4-T-Butylcyclohexanol
- Fixative and scent masker; not a primary skin conditioning agent.
- Cetyl Alcohol
- Cetyl alcohol for emulsification/thickening; high concentration >10% may irritate.
- Phenoxyethanol
- Broad-spectrum preservative at ≤1%; may irritate sensitive eye areas, often paired with ethylhexylglycerin
Source: full ingredient list published on the product label, collected 2026-09-18. Ratings are our internal reading, not a regulatory conclusion. · Product page
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