OrangFACS is a standardized system that requires certification to use.


The OrangFACS Manual identifies each muscle movement that causes visible changes in facial appearance. These are called Action Units (AUs) and each AU is listed in the manual with a numerical code and several topics to aid understanding and clarification. These include the proposed muscular basis for the AU, a list of appearance changes, subtle differences between AUs and a comparison with FACS of other species. The manual contains  pictures and videos throughout to aid training as well as a section related to broad muscular movements (Action Descriptors).


The full version of the OrangFACS Manual and the OrangFACS Test are available through the links below, please email Catia Caeiro for the passwords.


To access the OrangFACS Manual click here


To access the OrangFACS Test clips  click here



Website designed by Kate Peirce, University of Portsmouth, UK.