PEG-25 PABA

INCI: PEG-25 PABA | Function: UV Absorber (historical) | Type: PEG PABA

What Is PEG-25 PABA?

PEG-25 PABA is a polyethylene glycol derivative of para-aminobenzoic acid (PABA), historically used as a UVB sunscreen filter. PABA was one of the first chemical sunscreen agents but has been largely discontinued due to issues with skin sensitization, allergic contact dermatitis, and fabric staining. PEG-25 PABA remains listed in some regulatory databases but is very rarely used in contemporary cosmetic formulations.

Key Skin Benefits

+ 配方助剂 — 改善产品稳定性和使用体验 (Formulation aid — improves product stability and user experience)

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

− 可能引起皮肤过敏 — PABA衍生物可能导致接触性皮炎 (May cause skin sensitization — PABA derivatives can trigger contact dermatitis)
− 已过时 — 现代防晒配方已用更安全的防晒剂替代 (Obsolete — modern sunscreen formulations use safer alternatives)
− 可能染色衣物 — PABA成分可能在衣物上留下黄色污渍 (May stain clothing — PABA ingredients can leave yellow stains on fabric)

Specifications

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

Safety Ratings

Metric	Rating
Skin Sensitivity	3/5 (moderate)
Comedogenic Rating	0/5
EWG Score	5/10

Regional Regulatory Limits

Region	Leave-on %	Rinse-off %	Status
EU (CosIng)	Restricted	Restricted	Restricted (Annex VI)
US (CIR/FDA)	Allowed (historical)	Allowed (historical)	Rarely used
Japan (MHLW)	Not listed	Not listed	Rarely used
ASEAN	Restricted	Restricted	Restricted
China (NMPA)	Not listed	Not listed	Rarely used

Typical Usage % by Product Type

Product Type	Typical %
Cream	0.5 - 3%
Lotion	0.5 - 2%

References

CIR (2007) — PABA safety assessment. PMID: 17824372
EWG Skin Deep — PABA score 5

← Back to Skinpedia