Thank you for viewing. This is Merit DAY+ Dry Shampoo Sheets, 12 sheets per pack. Unopened. "Refreshes scalp and hair without water! Removes sweat odor, stickiness, and fine particle dirt such as dust and pollen!" It is said that the quality is maintained for 3 years if unopened. I received it at an event a year ago and have been storing it at home. Please feel free to ask any questions or consult with me!