What did you observe and note as you watched users interact with your prototypes?

It was difficult to convey to users that the idea of the container was not just an end in itself, but a way to encourage refills and change the system of using cosmetic containers.

What feedback did your users share after they've had a chance to interact with and explore your prototypes?

When I used the example of a cosmetic container for lotion, users had a slightly different reaction. Some users were mostly positive. They commented that using this product would definitely reduce their environmental footprint. However, some users were more likely to use a variety of products rather than buy one product over and over again, and were less likely to scrape the bottle to the end or refill it.