Flaminal^® (Hydro or Forte) tubes and jars can be used until there expiry date. The expiry date (USE BY: Year/Month) is the last day of the indicated month and year. Once opened, and if recapped carefully, a tube of Flaminal^® can be stored at room temperature for 12 months. A jar of Flaminal^® 500g however can be used for one week after its first opening.