PEG/PPG-1/2 COPOLYMER

What Is PEG/PPG-1/2 COPOLYMER?

PEG/PPG-1/2 copolymer is a block copolymer of polyethylene glycol (PEG-1) and polypropylene glycol (PPG-2). The low PEG ratio makes it more PPG-dominant, functioning as a co-solubilizer for fragrances and lipophilic ingredients. The PPG block provides lipophilic character while the PEG block ensures water solubility. Used as a solubilizer in cosmetic formulations to help dissolve oil-soluble ingredients (fragrances, essential oils) into water-based products.

Key Skin Benefits

• + 增溶 — 帮助油溶性成分（香精、精油、活性物）溶解在水性配方中 (Solubilizes oil-soluble ingredients like fragrances and essential oils into water-based formulas)
• + 透明配方 — 使含有精油或香精的产品保持透明清澈 (Enables clear, transparent formulations with oils)

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