Products marked with “Pharmaceutical quality” pictogram are substances meeting high quality requirements specified by so-called Pharmacopoeia. The compliance with its criteria allows for the use of chemical products as raw materials used in manufacturing of medicines and supplements. Pharmacopoeia is considered to be an official collection of quality requirements for medicines and medical devices available in the market with regard to the particular region of the world (European Pharmacopoeia, United States Pharmacopoeia and British Pharmacopoeia). The collection of the criteria is constantly updated and adjusted to changes in Pharmacology, as well as to the law applicable in a given region.