PEG-8 TRISILOXANE

INCI: PEG-8 TRISILOXANE | Function: Emollient, Skin Conditioning, Wetting Agent | Type: PEG Siloxane

What Is PEG-8 TRISILOXANE?

PEG-8 TRISILOXANE 是一种PEG-硅氧烷共聚物（Trisiloxane PEG-8 Ether），由三硅氧烷与PEG-8醚化制得。作为低分子量有机硅表面活性剂，兼具硅氧烷的铺展性和PEG的亲水性，常用作润肤剂、润湿剂和肤感改良剂，提供丝滑轻盈的触感。(PEG-8 TRISILOXANE is a PEG-siloxane copolymer combining siloxane spreadability with PEG hydrophilicity. As a low molecular weight silicone surfactant, it is used as an emollient, wetting agent, and feel modifier, providing a silky lightweight touch.)

Key Skin Benefits

+ 丝滑肤感 — 硅氧烷提供轻盈丝滑触感 (Silky feel — siloxane provides lightweight silky touch)
+ 快速铺展 — 低表面张力帮助产品均匀涂布 (Fast spreading — low surface tension enables even application)
+ 润湿增效 — 帮助活性成分渗透 (Enhanced wetting — aids active ingredient penetration)

Pros

+ 轻盈不油腻 — 无厚重感 (Lightweight and non-greasy — no heavy feel)
+ 快速吸收 — 低分子量易渗透 (Fast absorption — low molecular weight penetrates easily)
+ 挥发可控 — 三硅氧烷适度挥发 (Controlled volatility — trisiloxane has moderate volatility)

Cons

− 全合成 — 有机硅原料 (Fully synthetic — silicone-based)
− 含PEG — 环氧乙烷工艺 (Contains PEG — ethylene oxide process)
− 环境持久性 — 硅氧烷降解慢 (Environmental persistence — siloxanes degrade slowly)

Specifications

Property	Value
Usage Areas	Face, Body, Hair
Product Type	Leave-On, Rinse-Off
Source	Synthetic
Natural Level	Synthetic

Safety Ratings

Metric	Rating
Skin Sensitivity	1/5 (low)
Comedogenic Rating	0-1/5
EWG Score	2-4/10

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 %
Serum / Essence	0.5 - 3%
Face Cream	0.5 - 2%
Hair Serum	1 - 5%

References

CIR (2010) — Safety Assessment of PEGs as Used in Cosmetics. Conclusion: PEGs safe as used. PMID: 20629512
CosIng (2025) — European Commission Cosmetic Ingredient Database. https://ec.europa.eu/growth/tools-databases/cosing/
EWG Skin Deep — PEG compound hazard database. https://www.ewg.org/skindeep/
SpecialChem — Cosmetic ingredient selector and formulator reference. https://cosmetics.specialchem.com/

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