Concept One Step (Triple Pack) x 2 sets (6 bottles total) Purchased by mistake, and only one bottle was used once. 5 bottles are new and unopened. Opened in November 2025, but please refrain from purchasing if you are concerned. - Expiration date: May 2026 [Product Features] - Thorough disinfection and high moisturizing power with the power of hydrogen peroxide - Neutralization completed in 6 hours, easy one-step care - Compatible with silicone hydrogel lenses