Europe vs. The World
The toxicological profile of solvents in cosmetics—used to dissolve active ingredients, control viscosity, or improve skin penetration—is managed with varying degrees of rigour across the globe. In the European Union, the Cosmetics Regulation (EC) No 1223/2009 is among the strictest in the world, prohibiting over 1,600 substances. European law requires a comprehensive safety assessment for every product, specifically scrutinising solvents like toluene, formaldehyde-releasers, or certain glycol ethers for potential reproductive toxicity, sensitisation, or endocrine disruption.
Globally, the landscape is shifting but remains fragmented. While the United States recently updated its framework via the Modernization of Cosmetics Regulation Act (MoCRA), it traditionally operates on a “post-market” surveillance model, whereas the EU utilises a “pre-market” precautionary approach. Toxicologists focus on the “Margin of Safety” (MoS) to ensure that even if a solvent is absorbed through the dermal barrier, the internal dose remains far below the “No Observed Adverse Effect Level” (NOAEL). This regulatory discrepancy means products sold in some global markets may contain volatile organic compounds (VOCs) that are restricted or entirely banned in Europe, potentially exposing consumers to higher cumulative risks over time.