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Shelf-life stickers / see product is overdue easy

Shelf-life stickers

Sometimes the eye drops, contact lens care solution or some medicines.
In the open time can use, and more than a certain amount of time is not to be used.
In the body of products such as eye drops below a stick ,a stick a have a layer of film. When the tear film, stick a will contact with air, stick a will change color.as the change of time stick a color will become black by yellow when stick a into black.also remind people can no longer use this produce.

University

Shanghai Institute Of Visual Art

Shanghai Institute Of Visual Art
Shanghai, China

Design

Shanghai Institute Of Visual Art

Shanghai Institute Of Visual Art
Shanghai, China

XujiaDong/JieyingLi/ChunyingZeng/JunRuan