Pure Krill has a 2-year shelf life from the moment we package it. That long shelf life is because the powerful antioxidant, astaxanthin, stabilizes the Omega-3 fatty acids, keeping them from going rancid when it meets oxygen.

As potent as astaxanthin is, oxidation is inevitable. So, to ensure you’re getting every benefit krill offers, we strongly recommend you use an open container within a month of opening.