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Project Type

Date

Cosmetics

December 2025

Chromi is a universal silicone band that tracks cumulative UV exposure through highly visible white to orange color change.
Its features passive monitoring with no user input needed, a color-changing indicator that shows when exposure reaches a harmful threshold, and a “second life” as a functional rubber band once max exposure is reached.
 

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Defining the Threat
Why is skincare expiration unclear?
Light Exposure as a Proxy for Degradation
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"Casual skincare users need a reliable way to know if their products are still fresh and effective, but invisible ingredient degradation, improper storage, and vague expiration indicators make this difficult, creating a risk of irritation or wasted use."

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Final Product - Features
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Manufacturing
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©2021 by Tanya Basak Design.

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