Having completed a relevant first degree, some graduates chose to gain experience in toxicology by working in a research laboratory or in regulatory services at industrial or government establishments. However, postgraduate study can focus your skills as a toxicologist, which may be more desirable to employers. Postgraduate qualifications can also improve your career progression as a toxicologist. Therefore, many graduates decide to further specialise in toxicology through one of the full- or part-time postgraduate courses. Toxicology may be taught as a single subject, or combined with a second discipline such as forensic science or analytical chemistry. This type of course often leads to the qualification of MSc.