Phenyldimethoxyacetophenone
Also known as: DMPA (photoinitiator)
INCI: Phenyldimethoxyacetophenone | Function: Photoinitiator | Type: Photoinitiator (UV-curing)
What Is Phenyldimethoxyacetophenone?
Phenyldimethoxyacetophenone (DMPA) 是一种光引发剂, 主要用于 UV 固化的指甲油/甲油胶配方中。在 UV 光照射下释放自由基, 引发聚合反应使产品固化。不是护肤品中的常规成分。
Key Skin Benefits
- + Efficient photoinitiator — fast UV curing
- + Essential for UV-cured nail gel
- + Good cure depth
Pros
- + Critical for UV nail systems
- + Fast curing
- + Established use
Cons
- − Not for skin leave-on
- − Potential skin sensitizer
- − Residual initiator may cause irritation
Specifications
| Property | Value |
|---|
| Usage Areas | N/A |
| Product Type | Rinse-Off |
| Source | Synthetic |
| Natural Level | Synthetic |
Safety Ratings
| Metric | Rating |
|---|
| Skin Sensitivity | 2-3/5 |
| Comedogenic Rating | N/A |
| EWG Score | 4/10 |
Regional Regulatory Limits
| Region | Leave-on % | Rinse-off % | Status |
|---|
| EU (CosIng) | N/A (nail) | N/A (nail) | Allowed |
| US (CIR/FDA) | N/A (nail) | N/A (nail) | Allowed |
| Japan (MHLW) | N/A (nail) | N/A (nail) | Allowed |
| ASEAN | N/A (nail) | N/A (nail) | Allowed |
| China (NMPA) | N/A (nail) | N/A | Allowed |
Typical Usage % by Product Type
| Product Type | Typical % |
|---|
| UV nail gel | 0.5–3% |
| UV nail coat | 1–5% |
References
- EU CosIng Database. https://ec.europa.eu/growth/tools-databases/cosing/
- IFRA Standards Library. https://ifrafragrance.org/
- SpecialChem — Cosmetic database. https://cosmetics.specialchem.com/