Regulatory Status
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Safety Data
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Sensitization Profile
Contact sensitization data for Drometrizole Trisiloxane based on clinical patch test studies and IFRA standards.
Source: SCCS
Expert Verdict
Oil-soluble UV filter with dual UVB/UVA2 absorption peaks (303 nm and 344 nm) that complements water-soluble ecamsule in the L'Oréal Mexoryl system for full-spectrum protection. The trisiloxane backbone provides photostability and limits dermal penetration. Approved in the EU but not available in US-market products.
Regulatory Flags
Frequently Asked Questions
Is Drometrizole Trisiloxane safe in cosmetics?
Oil-soluble UV filter with dual UVB/UVA2 absorption peaks (303 nm and 344 nm) that complements water-soluble ecamsule in the L'Oréal Mexoryl system for full-spectrum protection. The trisiloxane backbone provides photostability and limits dermal penetration. Approved in the EU but not available in US-market products. The EU classifies Drometrizole Trisiloxane as "permitted". Safety rating: GOOD.
Is Drometrizole Trisiloxane allowed in the EU?
Drometrizole Trisiloxane EU regulatory status: permitted. Maximum allowed concentration: Approved under EU Cosmetics Regulation Annex VI; concentration limits apply. This is based on EU Regulation 1223/2009 and its amendments.
What does Drometrizole Trisiloxane do in cosmetics?
Drometrizole Trisiloxane functions as: Oil-soluble broad-spectrum UV filter; dual absorption peaks at ~303 nm (UVB) and ~344 nm (UVA2); provides oil-phase UVA coverage; synergistic with ecamsule (Mexoryl SX) to deliver full-spectrum UVA1+UVA2 protection in the L'Oréal Mexoryl system. It is classified as a Active Ingredient in our database. CAS number: 155633-54-8.
What is the Margin of Safety for Drometrizole Trisiloxane?
adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
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Related Ingredients
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