The safety of pharmaceutical products has become a major issue over the last few year, in particular with regards to the constantly growing internet sales of medicines. Validus is developing a novel printing technique to produce unique optical safeguards, which can be incorporated onto i.e. strips and packaging of pharmaceutical products. The optical safeguards are clearly visible by the human eye but also have advanced hidden features. By using the optical safeguards of Validus the authenticity of medicines can be verified throughout the supply chain up to individual consumers.