PEG/PPG-28/21 ACETATE DIMETHICONE

INCI: PEG/PPG-28/21 ACETATE DIMETHICONE | Function: Skin Conditioning (Silicone) | Type: PEG/PPG Dimethicone

What Is PEG/PPG-28/21 ACETATE DIMETHICONE?

PEG/PPG-28/21 acetate dimethicone is an acetate-modified PEG/PPG dimethicone copolymer. The PEG/PPG components provide water-dispersibility, dimethicone delivers a silky skin feel, and the acetate modification enhances compatibility with other cosmetic ingredients. Used as a skin conditioning agent that provides a smooth, non-tacky finish.

Key Skin Benefits

+ 改善肤感 — 提供丝滑、不油腻的肤感体验 (Provides a silky, non-greasy sensory feel)
+ 抗静电 — 减少头发静电和飞散 (Reduces static and flyaway in hair)

Pros

+ 非离子型 — 与大多数化妆品成分兼容性好 (Non-ionic — good compatibility with most cosmetic ingredients)
+ 温和 — 通常皮肤刺激性低 (Generally mild with low skin irritation potential)
+ 多用途 — 可用于多种产品类型（驻留型和洗去型）(Versatile — suitable for leave-on and rinse-off products)

Cons

− 合成成分 — PEG化过程涉及石化衍生物 (Synthetic — PEG manufacturing involves petrochemical derivatives)
− 可能含微量1,4-二噁烷 — 需通过纯化工艺去除 (May contain trace 1,4-dioxane — requires purification to remove)
− 非活性成分 — 仅作为配方助剂，无直接护肤功效 (Non-active — functions only as a formulation aid, no direct skincare benefit)

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	2/10

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 %
Facial cleanser	0.5 - 2%
Hair conditioner	0.5 - 2%
Moisturizer	0.5 - 1%

References

CIR — Safety Assessment of PEG ingredients. PEGs considered safe as used in cosmetics.
EWG Skin Deep — PEG compound hazard database
EU CosIng Database — Listed as cosmetic ingredient

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