Target sells a 30-count box of Refresh Plus single use vials for $6.99, or $0.233 per vial. Costco sells a 100-count box of Refresh Plus single use vials for $18.39, or $0.184 per vial. If you use a vial a day for an entire year, Costco will save you $17.89. That’s IF you use a vial a day.
