The shelf life is specific to the type of plaster, below is a breakdown of shelf lives by product:
Blister Medium(x1,x2,x5,x10) , Blister Underfoot/Sports Underfoot, Blister Extreme/Sports Heel, Blister Small, Blister on Toes, Blister Mix, Blister High Heel – 36 months shelf life after manufacture.
Cold Sore Patch: 36 months shelf life after manufacture.
Foot Care Corn Medium, and Callus and Callous Medium plasters have 48 months shelf life after manufacture.