Attention: On August 29, 2022, the FDA granted an additional 3-month shelf-life extension for On/Go COVID-19 Antigen Self-Tests (also known under CareStart COVID-19 Antigen Self-Test EUA letter).  Please note, the expiration date for the tests is the last day of the labeled expiration month.  To determine the new expiration date for your test, please refer to the attached document, organized by lot number.  We will continue to apply to FDA for shelf-life extensions every three months based on our stability studies, and the new shelf-lives for our tests will apply to tests already produced as well as future production.
‍
View all new expiration dates by lot number
View the FDA letter
‍
‍
On/Go One tests already have a 12+ month shelf life.
These extensions occur because with medical products under EUA, such as On/Go, the FDA, after close studies, grants rolling expiration extensions. We expect the expiration date to be extended again early in spring. We will continue to closely update this page as well as our website when the expiration date gets extended.
‍