Cosmetic Ingredient

Trimethoxybenzylidene Pentanedione

INCI: TRIMETHOXYBENZYLIDENE PENTANEDIONE
CAS 945558-97-4
2,4-Pentanedione, 3-[(3,4,5-trimethoxyphenyl)methylene]-
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

UV photostabilizer (avobenzone triplet-state quencher), chelating agent, SPF booster (≥50% in-vivo SPF increase)
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

2,4-Pentanedione, 3-[(3,4,5-trimethoxyphenyl)methylene]-

Reference

Identifiers

CAS Number
945558-97-4
INCI
TRIMETHOXYBENZYLIDENE PENTANEDIONE
Category
Cosmetic Ingredient
Updated
Apr 2, 2026