In 1921, Hollister-Stier Laboratories, located in Spokane, is the oldest name in allergy science. The company was founded by chemist Guy Hollister and Robert E. Stier, M.D., and began partially as the result of Mrs. Hollister’s “summer cold,” which Hollister and Stier discovered was caused by grasses in the Spokane area.

The two friends developed a vaccine to help Mrs. Hollister, and the company became a leader in allergen extracts ever since.