PEG-8 PALMITOYL METHYL DIETHONIUM METHOSULFATE

What Is PEG-8 PALMITOYL METHYL DIETHONIUM METHOSULFATE?

PEG-8 palmitoyl methyl diethonium methosulfate is a PEG-modified quaternary ammonium compound (cationic surfactant). Functions as an antistatic and conditioning agent, primarily formulated in hair conditioners and treatments to reduce static flyaway and improve wet-combing and dry-combing properties. The PEG-8 segment provides water solubility to the otherwise oil-soluble quaternary ammonium structure.

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

Safety Ratings

Regional Regulatory Limits

Typical Usage % by Product Type

References

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