COSMOS was one of seven projects forming the SEURAT-1 cluster, SEURAT being a European research initiative with the long-term goal of achieving "Safety Evaluation Ultimately Replacing Animal Testing".

COSMOS was a unique collaboration addressing the safety assessment needs of the cosmetics industry, without the use of animals. The main aim of COSMOS was to develop freely available tools and workflows to predict the safety to humans following the use of cosmetic ingredients.

The project ran from January 2011 - December 2015.