Phenethyl Disiloxane
Also known as: Phenyl-modified disiloxane
INCI: Phenethyl Disiloxane | Function: Hair Conditioning | Type: Silicone (phenyl-modified siloxane)
What Is Phenethyl Disiloxane?
Phenethyl Disiloxane 是一种低分子量 phenyl-modified 硅氧烷。比 dimethicone 更轻盈挥发性更高, 提供瞬时丝滑感和光泽, 常用于 lightweight 护发喷雾和精华中作为光泽增强剂。
Key Skin Benefits
- + High gloss and shine — phenyl groups increase refractive index
- + Smooth slip and detangling — 减少梳理损伤
- + Heat protection — 形成保护膜
Pros
- + Excellent shine and gloss enhancement
- + Better organic compatibility than plain dimethicone
- + Non-greasy silky feel
Cons
- − Synthetic silicone — not biodegradable
- − May build up on hair with repeated use
- − Environmental concerns about silicone accumulation
Specifications
| Property | Value |
|---|
| Usage Areas | Hair |
| Product Type | Leave-On, Rinse-Off |
| Source | Synthetic |
| Natural Level | Synthetic |
Safety Ratings
| Metric | Rating |
|---|
| Skin Sensitivity | 0-1/5 |
| Comedogenic Rating | 0/5 |
| EWG Score | 2/10 |
Regional Regulatory Limits
| Region | Leave-on % | Rinse-off % | Status |
|---|
| EU (CosIng) | No limit | No limit | Allowed |
| US (CIR/FDA) | No limit | No limit | Allowed |
| Japan (MHLW) | No limit | No limit | Allowed |
| ASEAN | No limit | No limit | Allowed |
| China (NMPA) | No limit | No limit | Allowed |
Typical Usage % by Product Type
| Product Type | Typical % |
|---|
| Hair serum / oil | 1–10% |
| Leave-in conditioner | 0.5–5% |
| Heat protectant spray | 1–5% |
References
- EU CosIng Database. https://ec.europa.eu/growth/tools-databases/cosing/
- EWG Skin Deep — Silicone hazard scores. https://www.ewg.org/skindeep/
- SpecialChem — Cosmetic silicone database. https://cosmetics.specialchem.com/