peter-thomas-roth Peter Thomas Roth Mega Rich Conditioner
peter-thomas-roth Peter Thomas Roth Mega Rich Conditioner lists 28 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.
- Aqua
- Cetearyl Alcohol
- Glycerin
- Cetrimonium Chloride
- Dicetyldimonium Chloride
- Behentrimonium Methosulfate
- Parfum
- Glyceryl Stearate
- Peg-100 Stearate
- Hydroxyethylcellulose
- Dimethicone
- Ascorbic Acid
- Biotin
- Panthenol
- Tocopheryl Acetate
- Methylparaben
- Methylchloroisothiazolinone
- Methylisothiazolinone
- Tetrasodium Edta
- Propylparaben
- Magnesium Sulfate
- Citric Acid
- Citronellol
- Hexyl Cinnamal
- Limonene
- Linalool
- Yellow 5
- Yellow 6
Highlights
Free of alcoholFree of sulfatesFree of mineral oilFree of formaldehyde releasersContains EU-26 allergensContains fragranceContains PEGContains siliconesContains parabensContains essential oils
Formulation view Conditioner using cationic surfactants, fatty alcohols, panthenol, and dimethicone. Designed for intense softening and anti-frizz for damaged hair. Factory note: Requires precise balance of cationic ingredients and managing residual feel versus rinse-off clarity.
Key ingredients
- SOLVENT
- Aqua
- SKIN CONDITIONING - EMOLLIENT
- Cetearyl AlcoholGlyceryl Stearate
- DENATURANT
- Glycerin
- ANTIMICROBIAL
- Cetrimonium Chloride
- ANTISTATIC
- Dicetyldimonium ChlorideBehentrimonium Methosulfate
- FRAGRANCE
- Parfum
Other ingredients
Peg-100 StearateHydroxyethylcelluloseDimethiconeAscorbic AcidBiotinPanthenolTocopheryl AcetateMethylparabenMethylchloroisothiazolinoneMethylisothiazolinoneTetrasodium EdtaPropylparabenMagnesium SulfateCitric AcidCitronellolHexyl CinnamalLimoneneLinaloolYellow 5Yellow 6
Skim through
| Ingredient | What it does | Irritancy | Rating |
|---|---|---|---|
| Aqua | SOLVENT | 0 | Green |
| Cetearyl Alcohol | SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING, EMULSION STABILISING, SURFACTANT - FOAM BOOSTING, OPACIFYING, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING | 0 | Green |
| Glycerin | DENATURANT, HAIR CONDITIONING, HUMECTANT, ORAL CARE, SKIN PROTECTING, SOLVENT, VISCOSITY CONTROLLING, PERFUMING, FRAGRANCE, SKIN CONDITIONING - HUMECTANT | 0 | Green |
| Cetrimonium Chloride | ANTIMICROBIAL, ANTISTATIC, SURFACTANT - EMULSIFYING, PRESERVATIVE · 限制 V/44 | 2 | Yellow |
| Dicetyldimonium Chloride | ANTISTATIC, SURFACTANT - EMULSIFYING, HAIR CONDITIONING, SURFACTANT - CLEANSING | 3 | Green |
| Behentrimonium Methosulfate | ANTISTATIC, HAIR CONDITIONING, SURFACTANT - CLEANSING | 1 | Green |
| Parfum | FRAGRANCE, PERFUMING | 2 | Yellow |
| Glyceryl Stearate | SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING | 0 | Green |
| Peg-100 Stearate | SURFACTANT - CLEANSING | 0 | Green |
| Hydroxyethylcellulose | BINDING, EMULSION STABILISING, FILM FORMING, LIGHT STABILIZER, VISCOSITY CONTROLLING | 0 | Green |
| Dimethicone | ANTIFOAMING, SKIN CONDITIONING - EMOLLIENT, SKIN CONDITIONING, SKIN PROTECTING | 0 | Green |
| Ascorbic Acid | ANTIOXIDANT, BUFFERING, FRAGRANCE, SKIN CONDITIONING | 2 | Green |
| Biotin | HAIR CONDITIONING, SKIN CONDITIONING - MISCELLANEOUS | — | Green |
| Panthenol | ANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING | 0 | Green |
| Tocopheryl Acetate | ANTIOXIDANT, SKIN CONDITIONING | 0 | Green |
| Methylparaben | FRAGRANCE, PRESERVATIVE · 限制 V/12 | 0 | Yellow |
| Methylchloroisothiazolinone | PRESERVATIVE · 限制 V/39 | 2 | Yellow |
| Methylisothiazolinone | PRESERVATIVE · 限制 V/57 V/39 | 5 | Yellow |
| Tetrasodium Edta | CHELATING | 0 | Green |
| Propylparaben | PRESERVATIVE, PERFUMING · 限制 V/12 | 1 | Yellow |
| Magnesium Sulfate | BULKING | 0 | Green |
| Citric Acid | BUFFERING, CHELATING, FRAGRANCE | 1 | Green |
| Citronellol | PERFUMING · 限制 III/86 | 1 | Yellow |
| Hexyl Cinnamal | PERFUMING · 限制 III/87 | 1 | Yellow |
| Limonene | DEODORANT, SOLVENT, PERFUMING · 限制 III/88 III/167 III/168 | 1 | Yellow |
| Linalool | DEODORANT, PERFUMING · 限制 III/84 | 1 | Yellow |
| Yellow 5 | 着色剂 | 2 | Green |
| Yellow 6 | 着色剂 | 0 | Green |
Comedogenic ratings need a published source. This batch is not yet sourced, so it is not shown.
Ingredients explained
- Aqua
- Solvent, main base; microbial control is critical
- Cetearyl Alcohol
- Fatty alcohol emulsifier at 1-5%; non-ionic surfactant
- Glycerin
- Workhorse humectant at 3–10%; tacky at high levels, pair with occlusives
- Cetrimonium Chloride
- Cationic surfactant/preservative for conditioning; irritating at high levels, restricted use
- Dicetyldimonium Chloride
- Cationic surfactant for hair/beard care; provides antistatic, emulsifying, cleansing, and conditioning. Irritant to eyes and skin.
- Behentrimonium Methosulfate
- Cationic surfactant for conditioning and antistatic; be careful with anionic actives compatibility.
- Parfum
- Fragrance for scent; may contain allergens, caution for sensitive skin, full labeling required.
- Glyceryl Stearate
- Emulsifier at 1-3%; may require acid to prevent saponification
- Peg-100 Stearate
- Non-ionic emulsifier, requires ionics for stability; check PEG for formaldehyde.
- Hydroxyethylcellulose
- Water-soluble cellulose ether for thickening and suspension stabilization; sensitive to ions, electrolytes reduce viscosity, use at pH 7-8.
- Dimethicone
- Silicone occlusive at 1–5%; provides smooth feel, non-penetrating, suitable for sensitive skin
- Ascorbic Acid
- Vitamin C, potent antioxidant requiring acidic environment for stability; oxidizes and discolors easily, needs light and air protection, concentration 1-10%, pure L-ascorbic acid is more irritating.
- Biotin
- Vitamin B7 nutrient claimant; topical effect limited, use at 1-20 ppm.
- Panthenol
- Panthenol (vitamin B5) at 1–5%; moisturizing and reparative, supports barrier recovery
- Tocopheryl Acetate
- Vitamin E derivative antioxidant at 0.1–1%; more stable than tocopherol, store protected from light
- Methylparaben
- Preservative, narrow spectrum; often combined, check allergen risk and regulatory limits.
- Methylchloroisothiazolinone
- Preservative (MCI); highly sensitizing, use only in rinse-off, avoid leave-on products.
- Methylisothiazolinone
- Strong preservative; high allergy risk, EU restricted for leave-on products, high formulation risk
- Tetrasodium Edta
- Chelator removing metal ions to enhance antioxidant and preservative efficacy; very low usage, typically 0.05-0.1%, no direct skincare function.
- Propylparaben
- Medium-chain preservative; restricted use, pH-sensitive efficacy.
- Magnesium Sulfate
- Bulk agent at 0.1–1%; highly water-soluble, avoid high local concentration.
- Citric Acid
- Buffer and chelator at 0.1–2%; adjusts pH, may irritate sensitive skin at low pH
- Citronellol
- Citronellol for fragrance; EU 26 allergen, labeling required above 0.001%.
- Hexyl Cinnamal
- Common fragrance component (jasmine/vanilla note); listed EU allergen, requires labeling at >10ppm (leave-on).
- Limonene
- Natural fragrance solvent, EU allergen; poor photostability
- Linalool
- Natural fragrance component at ≤0.05%; one of EU 26 allergens, caution for sensitive skin
- Yellow 5
- Synthetic dye for color; known allergen, may irritate sensitive skin.
- Yellow 6
- Synthetic water-soluble dye; potential allergen, use with care in sensitive skin, often needs stabilizers.
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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