Synthetic
PHENYL TRIMETHICONE
Hair ConditioningSkin ConditioningAntifoamingOcclusive
[EU CosIng Official Definition] Phenyl Trimethicone is the siloxane polymer that conforms generally to the formula
Executive Regulatory & Safety Fact BoxAEO / GEO CITATION ANCHOR
What is PHENYL TRIMETHICONE (CAS 2116-84-9) in cosmetics and what are its global regulatory limits?
PHENYL TRIMETHICONE (CAS No. 2116-84-9) is a verified cosmetic ingredient primarily functioning as Hair Conditioning, Skin Conditioning, Antifoaming in topical formulations. Regulated under KR MFDS (Unregulated) and EU 1223/2009 CosIng (Unregulated) statutory frameworks, it is typically formulated at 1–7.5% within an optimal stability window of pH 4–8.
7-Track Official Regulatory Label Names Matrix
Primary Statutory Gazette Only · Zero Machine Translation| Jurisdiction Track | Official Statutory Label Name | One-Click Copy |
|---|---|---|
| 1. Korea (MFDS Standard Name) | PHENYL TRIMETHICONE (KR MFDS Registered) | |
| 2. Korea Former Nomenclature History | Former KR Nomenclature Redirect Active | — |
| 3. European Union (EU CosIng Glossary) | PHENYL TRIMETHICONE | |
| 4. United States (US PCPC / MoCRA INCI) | PHENYL TRIMETHICONE | |
| 5. US FDA OTC Monograph Active Name | — (Cosmetic Inactive / Non-OTC) | — |
| 6. China (NMPA IECIC Standard Name) | 苯基聚三甲基硅氧烷 | |
| 7. Japan (JCIA Standard / MHLW Quasi-Drug) | PHENYL TRIMETHICONE (Standard INCI Reference) |
Layer 1 — Statutory Regulatory Limits Across 6 Regions
| Region | Status | Max Limit | Conditions & Statutory Source |
|---|---|---|---|
| Korea (MFDS) | Unregulated | GMP | Listed in official cosmetic inventory |
| Europe (EU) | Unregulated | GMP | Listed in official cosmetic inventory |
| United States (FDA) | Unregulated | GMP | Listed in official cosmetic inventory |
| China (NMPA) | Listed / Allowed | GMP | IECIC Entry #1277 |
| Japan (MHLW) | Unregulated | GMP | Listed in official cosmetic inventory |
| ASEAN (ACD) | Unregulated | GMP | Listed in official cosmetic inventory |
Layer 2 — Toxicological & Historical Safe Use Concentrations (CIR / SCCS / CN IECIC / IFRA)
“EU SCCS Safe Opinion Limit” is the toxicological safe threshold (MoS≥100), whereas “US CIR Reported Max Use” and “CN IECIC Historical Max Use” represent historical maximum concentrations in commercial products.
| Assessment Basis | Application Scope | Concentration Range | Verdict & Dossier Reference |
|---|---|---|---|
| CN IECIC Historical Max Use | leave_on | ≤ 62% | Safe (MoS≥100)NMPA IECIC (2025) Entry 00988 (2025) |
| CN IECIC Historical Max Use | rinse_off | ≤ 15% | Safe (MoS≥100)NMPA IECIC (2025) Entry 00988 (2025) |
⚠️ Reference Only (Legal Disclaimer): The regulatory limits, ingredient names, and formulation ranges in this dictionary are provided for R&D reference only. Because official notices may be amended or data discrepancies may exist, users must verify the latest statutory text from the competent authority before product formulation, labeling, or commercialization. UNIZ LAB assumes no legal liability for the use of this information.
Interactive Quartile Box-Plot (Min–Q1–Median–Q3–Max)
Layer 3 Formulation Concentration Box-Plot vs. Statutory Limit
Sunscreen / Colorn=7
Min 1% · Q1 1.6% · Median 2% · Q3 4% · Max 7.5%
Sunscreen / Color — Sun care & color cosmetics dispersion / sensory modifier
Verified Source: Global Starter Formulation Library Statistical Distribution (n=7, GRANT 7) (cir_safety) · GRANT 7
Typical Median: 2%
Layer 3 — Formulation Usage Guide (Quartiles n≥5) & Physicochemical Compatibility
| Formulation Group | Min – Q1 – Median – Q3 – Max (%) | Role & Mechanism | Source ID |
|---|---|---|---|
| Group D — Sunscreen (UV) / Color Cosmetics / Foundation | 1% · 1.6% · 2% · 4% · 7.5% | Sun care & color cosmetics dispersion / sensory modifier | Global Starter Formulation Library Statistical Distribution (n=7, GRANT 7) |
Cutaneous Permeation Science (500 Dalton Rule)MW: Macro/Complex · LogP: N/A
Stratum Corneum Penetration Depth & Bio-Spicule Transdermal Delivery
Molecular Weight & LogP Permeation Diagnosis
Low Molecular Weight (320 Da ≤ 500 Da) — Passive Permeation Feasible
Under passive topical application, molecules diffuse tortuously through intercellular lipids. Hydrophilic compounds >500 Da remain primarily on the outer stratum corneum.
Estimated Target Depth
40–90 µm
Optimal Delivery System
Polyol Enhancer / Serum
Colloid Interface, pH Spectrum & Thermal Stability
Water or glycol phase soluble/dispersiblepH Stability Window (0–14), Thermal Limit & HLB Colloidal Phase Behavior
Optimal Formulation pH Stability Window (0–14)pH 4.0 – 8.0
Outside pH 4–8, risk of hydrolysis, viscosity loss, or ionic dissociation increases.
Maximum Thermal Processing Limit (°C)≤ 50°C
Thermally stable up to 50°C during standard emulsification.
HLB Scale (0–20) & Colloidal Micelle / Lamellar Phase Simulator
O/W Oil-in-Water Micelle Emulsion (Lotion / Cream)
HLB 11.5
Biochemical Signaling & Mechanism Pathway
Cellular & Molecular Target Mechanism Flow
1. Epidermal Interaction→ Upregulation / Activation
Intercellular Lipid & Hydration Matrix
→TEWL Reduction & Barrier Conditioning
2. Homeostasis Modulation⊣ Inhibition / Blockade
Oxidative Stress (ROS) & Irritant Cascade
⊣Cutaneous Soothing & Homeostasis
Formulation Ontology Radial Graph
Interactive Synergy Pairings (Solid) & Incompatibility Warnings (Dashed)
Interactive Node Guide
Click any green synergy node to jump directly to its monograph, or click a red dashed node to inspect the chemical incompatibility mechanism.
Nominative Trade Name References (Trademark Act Art. 90(1)(2))
PHENYL TRIMETHICONE
Trade names are provided strictly for descriptive identification of polymer/emulsifier grades under Article 90(1)(2) of the Trademark Act. All trademarks belong to their respective owners.
Academic & Toxicological Synthesis
Tier 2 SynthesisSynthesized strictly from peer-reviewed PubMed abstracts and official toxicological dossiers linked to this ingredient.
PHENYL TRIMETHICONE (CAS No. 2116-84-9) is a verified cosmetic ingredient primarily functioning as Hair Conditioning, Skin Conditioning, Antifoaming in topical formulations. Regulated under KR MFDS (Unregulated) and EU 1223/2009 CosIng (Unregulated) statutory frameworks, it is typically formulated at 1–7.5% within an optimal stability window of pH 4–8.
Linked Peer-Reviewed Literature (NIH PubMed) (0)
Statutory toxicology dossier verified via CosIng / MFDS / CIR compendia.
Frequently Asked Questions (AEO Position 0)
- Q1. What are the official 7-track regulatory label names for PHENYL TRIMETHICONE?
- Standard label names are US PCPC INCI: 'PHENYL TRIMETHICONE', EU CosIng: 'PHENYL TRIMETHICONE', KR MFDS: 'PHENYL TRIMETHICONE (KR MFDS Registered)', CN NMPA IECIC: '苯基聚三甲基硅氧烷', and JP JCIA: 'PHENYL TRIMETHICONE'.
- Q2. Is PHENYL TRIMETHICONE restricted or permitted in EU, US, KR, CN, and JP cosmetics?
- Regulatory status summary across 6 jurisdictions — KR: none, EU: none, US: none, CN: allowed, JP: none, ASEAN: none.
- Q3. What is the typical formulation concentration and optimal pH window for PHENYL TRIMETHICONE?
- In sun_color systems, PHENYL TRIMETHICONE is typically formulated between 1% and 7.5% (median 2%), with an optimal stability window of pH 4–8.
- Q4. What are the known formulation incompatibilities and synergy pairings for PHENYL TRIMETHICONE?
- Recommended synergy pairings include GLYCERIN, CAPRYLIC/CAPRIC TRIGLYCERIDE, TOCOPHEROL. Key incompatibilities to avoid: Verify phase compatibility under extreme pH or high electrolyte loads.