BODYARMOR hydration drink in base and LYTE flavours as all have a production date code printed on them and from that date you can infer the best by date. If you see a number like 20300 then “20” signifies 2020, and “300” signifies Oct. 27th. This would mean that your bottle was made on 10/27/2020 and best-by 1 year past that, which is 10/27/2021.