# PHENYL TRIMETHICONE (phenyl-trimethicone) — Global Cosmetic Regulatory & Formulation Monograph

- **Canonical URL**: https://www.inciname.com/en/ingredients/phenyl-trimethicone
- **Standard INCI**: `PHENYL TRIMETHICONE`
- **KR MFDS Standard Name**: `페닐트라이메티콘`
- **CAS No.**: `2116-84-9`
- **EC / EINECS No.**: `218-320-6`
- **Origin**: `synthetic`
- **Functions**: 모발컨디셔닝제, 피부컨디셔닝제, 소포제, 밀폐제
- **Molecular Formula / MW**: `—` (— g/mol)

## 1. 7-Track Official Regulatory Label Names
| Track | Official Label Nomenclature |
| :--- | :--- |
| KR (MFDS Standard) | 페닐트라이메티콘 |
| KR (Former Names) | 페닐트리메치콘 |
| EU (CosIng 1223/2009) | PHENYL TRIMETHICONE |
| US (PCPC / MoCRA INCI) | PHENYL TRIMETHICONE |
| US (FDA OTC Monograph) | — |
| CN (NMPA IECIC) | 苯基聚三甲基硅氧烷 |
| JP (JCIA / MHLW QD) | PHENYL TRIMETHICONE  |

## 2. Layer 1 — Global 6-Region Statutory Summary
- **KR (MFDS)**: `none`
- **EU (1223/2009)**: `none`
- **US (FDA/MoCRA)**: `none`
- **CN (NMPA IECIC)**: `allowed` (Entry: `1277`)
- **JP (MHLW)**: `none`
- **ASEAN (ACD)**: `none`



## 3. Layer 2 — Toxicological & Historical Safe Use Concentrations
- **cn_iecic_max** (leave_on): ≤ 62% — NMPA IECIC (2025) Entry 00988 (2025)
- **cn_iecic_max** (rinse_off): ≤ 15% — NMPA IECIC (2025) Entry 00988 (2025)

## 4. Layer 3 — Formulation Quartiles & Compatibility
- **Optimal pH Window**: 4 – 8
- **Max Process Temp**: ≤ 50°C
- **Synergy Pairings**: GLYCERIN, CAPRYLIC/CAPRIC TRIGLYCERIDE, TOCOPHEROL
- **Incompatibilities**: Verify phase compatibility under extreme pH or high electrolyte loads

## 5. Academic Monograph
Phenyl Trimethicone is the siloxane polymer that conforms generally to the formula

## 6. Linked PubMed Literature