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Good Laboratory Practice (GLP) is a quality system used to help ensure laboratory studies are planned, performed, recorded and reported in a consistent and reliable manner. It provides a structured framework for conducting research so that scientific data can be trusted, reproduced and independently evaluated.
GLP was developed to improve confidence in non-clinical laboratory research by establishing clear standards for documentation, procedures and quality oversight. Although different countries have their own regulations, the core principles remain similar across many scientific organisations.
One of the key objectives of Good Laboratory Practice is traceability. Every stage of a laboratory study should be documented so that researchers can understand exactly how the work was carried out. This includes recording study plans, methods, observations and any deviations from established procedures.
Quality assurance also plays a central role within GLP. Independent quality systems help verify that studies are performed according to approved protocols and that records accurately reflect the work completed. This contributes to greater confidence in the integrity of research findings.
Another important principle is the use of standard operating procedures, often referred to as SOPs. These written procedures describe how routine laboratory tasks should be carried out, helping to reduce variation and improve consistency between studies.
GLP also places importance on suitable laboratory facilities, properly maintained equipment and appropriately trained personnel. These factors help support reliable research by reducing the likelihood of avoidable errors during scientific investigations.
Data management is another fundamental aspect of Good Laboratory Practice. Accurate record-keeping allows researchers to review experimental results, verify findings and maintain a clear audit trail throughout the lifecycle of a study.
It is important to note that Good Laboratory Practice refers to a quality management framework used in scientific research. It should not be confused with the term GLP-1, which refers to glucagon-like peptide-1, a naturally occurring hormone studied in metabolic research. Despite sharing the same abbreviation, the two terms describe entirely different concepts.
Today, Good Laboratory Practice continues to support high standards across many areas of laboratory science, including toxicology, pharmacology, biotechnology and biomedical research. By promoting consistency, transparency and accurate documentation, GLP helps strengthen the quality and reliability of scientific investigations.
Understanding Good Laboratory Practice provides valuable insight into how laboratory research is organised and why quality systems remain an essential part of modern scientific work.