Regina Hofmann-de Keijzer majored in biology at the University of Vienna. After completing her PhD study with a thesis on dye plants, she received an Erwin Schrödinger Fellowship to investigate Indonesian dye plants at a research institute in Amsterdam which is now part of the Cultural Heritage Agency of the Netherlands. In 1995 she joined the Department of Archaeometry at the University of Applied Arts Vienna, and in 2006 she became an Assistant Professor. Her lecture courses include organic materials, natural dyes, historical dyeing techniques and the analysis of fibres, dyestuffs and wood. Her main scientific interests and publications are in the area of natural dyes. Between 2008 and 2012, she has been the co-ordinator of the project Dyeing Techniques of the Prehistoric Hallstatt-Textiles, supported by the Austrian Science Fund (FWF): [L431-G02].