PEG-150/STEARYL ALCOHOL/SMDI COPOLYMER

INCI: PEG-150/STEARYL ALCOHOL/SMDI COPOLYMER | Function: Film Former, Thickener | Type: Copolymer

What Is PEG-150/STEARYL ALCOHOL/SMDI COPOLYMER?

PEG-150/Stearyl Alcohol/SMDI Copolymer 是一种由PEG-150、硬脂醇和饱和亚甲基二苯基二异氰酸酯(SMDI)共聚而成的高分子成膜剂和增稠剂。在水中形成透明凝胶网络结构，提供独特的悬浮能力和丝滑肤感。用于透明凝胶、精华和特殊剂型产品中。(PEG-150/Stearyl Alcohol/SMDI Copolymer is a high-molecular-weight film former and thickener copolymerized from PEG-150, stearyl alcohol, and saturated methylene diphenyl diisocyanate (SMDI). Forms clear gel networks in water providing unique suspending capability and silky sensory feel. Used in clear gels, serums, and specialty formats.)

Key Skin Benefits

+ 高效增稠 — 低浓度即可形成透明凝胶，提供悬浮能力 (Efficient thickening — forms clear gels at low concentration, providing suspension capability)
+ 丝滑肤感 — 独特的聚氨酯结构提供顺滑不黏腻的肤感 (Silky sensory — unique polyurethane structure provides smooth, non-tacky feel)
+ 成膜保护 — 在皮肤表面形成透气的保护膜 (Film-forming protection — forms breathable protective film on skin)

Pros

+ 透明凝胶形成剂 — 可制成高透明度的凝胶产品 (Clear gel former — enables highly transparent gel products)
+ 优异的悬浮性 — 可悬浮微珠、颗粒等装饰性成分 (Excellent suspending — suspends beads, particles, and decorative ingredients)
+ 广泛的pH兼容性 — 不受配方pH影响 (Broad pH compatibility — unaffected by formula pH)
+ 独特的肤感 — 提供粉滑丝绒般的触感 (Unique sensory — provides powdery, velvety touch)

Cons

− 完全合成 — 涉及异氰酸酯化学，完全非天然 (Fully synthetic — involves isocyanate chemistry, completely non-natural)
− 非活性成分 — 仅提供配方结构和肤感 (Non-active — provides only formula structure and sensory)
− 成本较高 — 相比传统增稠剂价格较高 (Higher cost — more expensive than traditional thickeners)

Specifications

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

Safety Ratings

Metric	Rating
Skin Sensitivity	1/5 (low)
Comedogenic Rating	0-2/5
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 %
Clear Gel Serum	0.5 - 2%
Suspension formula	0.5 - 1.5%
Hair Styling Gel	1 - 3%

References

CIR (2010) — Safety Assessment of PEGs. Conclusion: PEGs safe as used in cosmetics. PMID: 20629512
CosIng (2025) — European Commission Cosmetic Ingredient Database. https://ec.europa.eu/growth/tools-databases/cosing/
EWG Skin Deep — PEG-150/STEARYL ALCOHOL/SMDI COPOLYMER hazard database. https://www.ewg.org/skindeep/
SpecialChem — Cosmetic ingredient selector and formulator reference. https://cosmetics.specialchem.com/

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