Cosmetic or dermatological composition comprising a water-soluble organic UV-screening agent and a thiopyridinone compound
Incorporating a water-soluble organic UV-screening agent into thiopyridinone compounds improves their photostability and photoprotective properties, addressing stability issues under UV radiation and enhancing cosmetic compositions.
WO2026109442A1 Publication Date: 2026-05-28LOREAL SA
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Patent Information
- Application Number
- PCT/EP2025/083205
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-11-21
- Filing Date
- 2025-11-17
- Publication Date
- 2026-05-28
AI Technical Summary
Technical Problem
The stability of thiopyridinone compounds, particularly when exposed to UV radiation, is not optimal, especially in compositions with an aqueous phase.
Method used
Incorporating a water-soluble organic UV-screening agent into the composition enhances the photostability of thiopyridinone compounds, even in the presence of additional UV-screening agents.
Benefits of technology
The compositions exhibit improved photostability, strong photoprotective power, good physicochemical stability, and good cosmetic quality, remaining non-greasy and non-tacky, while maintaining effectiveness against pigmentation induced by UV and visible radiation.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to a composition, in particular a cosmetic or dermatological composition, comprising at least one aqueous phase, at least one water-soluble organic UV-screening agent and at least one thiopyridinone compound of given formula, and / or the optical isomers or geometric isomers thereof and also the organic or mineral acid or base salts thereof, and / or solvates thereof, such as hydrates.
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