The ingredient narratives reshaping clean beauty.
Avobenzone
aka butyl methoxydibenzoylmethane · parsol 1789 · escalol 517 · eusolex 9020
The only globally available synthetic UV filter with coverage across the full UVA spectrum (310–400 nm). Reformulation pressure continues as FDA GRASE non-determination drives US clean brands toward mineral SPF.
- Full UVA I + UVA II coverage (310–400 nm)
- High molar absorption coefficient
- Oil-soluble — compatible with aesthetic sunscreen vehicles
- FDA-approved (up to 3% US; 5% EU)
- Critical for broad-spectrum claims in US formulations
- Broad-spectrum chemical sunscreens
- SPF sun serums
- Daily SPF moisturisers
- Tinted SPF foundations
- Water-resistant sunscreens (with photostabiliser)
Critically photounstable standalone — degrades on UV exposure. Requires photostabiliser: octocrylene, Tinosorb S, Tinosorb M, or SolaStay S1. Incompatible with aminobenzoic acid derivatives.
Photodegradation products include reactive intermediates — argues for antioxidant co-formulation. FDA classified as insufficient data for GRASE due to systemic absorption above 0.5 ng/mL. TGA April 2025 review concluded low risk for typical face/hand application.
Contested in US clean-beauty. Many brands moved to mineral-only SPF. European and Korean clean brands accept it more readily.
The ingredient narratives reshaping clean beauty.
Avobenzone
aka butyl methoxydibenzoylmethane · parsol 1789 · escalol 517 · eusolex 9020
The only globally available synthetic UV filter with coverage across the full UVA spectrum (310–400 nm). Reformulation pressure continues as FDA GRASE non-determination drives US clean brands toward mineral SPF.
- Full UVA I + UVA II coverage (310–400 nm)
- High molar absorption coefficient
- Oil-soluble — compatible with aesthetic sunscreen vehicles
- FDA-approved (up to 3% US; 5% EU)
- Critical for broad-spectrum claims in US formulations
- Broad-spectrum chemical sunscreens
- SPF sun serums
- Daily SPF moisturisers
- Tinted SPF foundations
- Water-resistant sunscreens (with photostabiliser)
Critically photounstable standalone — degrades on UV exposure. Requires photostabiliser: octocrylene, Tinosorb S, Tinosorb M, or SolaStay S1. Incompatible with aminobenzoic acid derivatives.
Photodegradation products include reactive intermediates — argues for antioxidant co-formulation. FDA classified as insufficient data for GRASE due to systemic absorption above 0.5 ng/mL. TGA April 2025 review concluded low risk for typical face/hand application.
Contested in US clean-beauty. Many brands moved to mineral-only SPF. European and Korean clean brands accept it more readily.