# HYDROXYECTOIN (hydroxyectoin) — Global Cosmetic Regulatory & Formulation Monograph

- **Canonical URL**: https://www.inciname.com/en/ingredients/hydroxyectoin
- **Standard INCI**: `HYDROXYECTOIN`
- **KR MFDS Standard Name**: `하이드록시엑토인`
- **CAS No.**: `165542-15-4`
- **EC / EINECS No.**: `442-870-8`
- **Origin**: `synthetic`
- **Functions**: pH조절제, 피부컨디셔닝제, 완충제, 에모리엔트
- **Molecular Formula / MW**: `—` (— g/mol)

## 1. 7-Track Official Regulatory Label Names
| Track | Official Label Nomenclature |
| :--- | :--- |
| KR (MFDS Standard) | 하이드록시엑토인 |
| KR (Former Names) | — |
| EU (CosIng 1223/2009) | HYDROXYECTOIN |
| US (PCPC / MoCRA INCI) | HYDROXYECTOIN |
| US (FDA OTC Monograph) | — |
| CN (NMPA IECIC) | — |
| JP (JCIA / MHLW QD) | HYDROXYECTOIN  |

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



## 3. Layer 2 — Toxicological & Historical Safe Use Concentrations
- Listed within general cosmetic GMP safety thresholds.

## 4. Layer 3 — Formulation Quartiles & Compatibility
- **Optimal pH Window**: 4.5 – 7.5
- **Max Process Temp**: ≤ 70°C
- **Synergy Pairings**: —
- **Incompatibilities**: —

## 5. Academic Monograph


## 6. Linked PubMed Literature