During its existence, LifeScan revolutionized blood glucose monitoring by introduction of its "One Touch" systems.
Originally, the measurement was made using a test strip which changed color depending on the glucose content of a blood sample, and LifeScan rose to become the world-leading producer of such systems in the early 1990s.
Later, the measurement technology was changed to electrochemistry, but LifeScan maintained a leading position in the industry.
LifeScan has facilities in Inverness, Scotland; Burnaby, British Columbia, Canada; and Cabo Rojo, Puerto Rico.
LifeScan, which employed 2400 people as of early 2018, was the central part of J&J's diabetes device business.