Today, in addition to the standard analysis certificates, which have long been required, regarding appearance, content, purity, physical characteristics and the production of our products conforming to GMP, data and certificates are now required about genotoxic impurities, freedom from heparin adulteration, freedom from genetically modified components, freedom from TSE/BSE, melamine, benzene, etc. Siegfried works in close cooperation with the US-FDA regarding product piracy to combat counterfeiting and to ensure end-user safety.