PERLITE
INCI: PERLITE | Function: Absorbent, Exfoliant, Bulking Agent | Type: Mineral (Volcanic Glass)
What Is PERLITE?
Perlite (珍珠岩) 是一种天然火山玻璃 (volcanic glass)，经高温膨胀处理后形成多孔轻质颗粒。在化妆品中用作吸油剂 (absorbent)、温和物理去角质剂 (physical exfoliant) 和填充剂 (bulking agent)。其多孔结构可吸收多余皮脂，提供哑光妆效 (matte finish)，广泛用于控油散粉、清洁面膜和磨砂膏中。
Key Skin Benefits
- + Oil Absorption — 多孔结构吸收面部多余油脂，适合油性肌肤
- + Gentle Exfoliation — 球形颗粒提供温和的物理去角质，不划伤皮肤
- + Matte Finish — 在彩妆中提供自然哑光效果
- + Lightweight Bulking — 低密度填充，减少配方成本同时改善质地
Pros
- + Natural mineral origin — environmentally abundant
- + Excellent sebum absorption — ideal for oily/acne-prone skin formulations
- + Spherical particles provide gentle, non-abrasive exfoliation
- + Heat-expanded perlite is lightweight and non-comedogenic
- + Inert and non-reactive — compatible with most formulations
- + Cost-effective bulking and texturizing agent
Cons
- − Dust inhalation risk during manufacturing — proper PPE required
- − May be drying if overused on already-dry skin
- − Quality varies by source — particle size consistency important
- − Some perlite sources may contain crystalline silica traces (respirable hazard)
Specifications
| Property | Value |
|---|
| Usage Areas | Face, Body |
| Product Type | Leave-On, Rinse-Off |
| Source | Mineral |
| Natural Level | Natural |
Safety Ratings
| Metric | Rating |
|---|
| Skin Sensitivity | 1/5 |
| Comedogenic Rating | 0/5 |
| EWG Score | 1/10 |
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 % |
|---|
| Loose Powders / Setting Powders | 5–30% |
| Clay Masks / Exfoliants | 2–15% |
| Mattifying Primers | 1–5% |
| Body Scrubs | 5–20% |
References
- CosIng Database — Perlite. https://ec.europa.eu/growth/tools-databases/cosing/
- EWG Skin Deep — Perlite. https://www.ewg.org/skindeep/
- CIR (2018) — Safety Assessment of Silicates. PMID: 30265510
- SpecialChem — Perlite in cosmetics. https://cosmetics.specialchem.com/