A shopper should be able to identify the brand, the product, and the variant without sorting through competing messages. There is no universal three-second formula; test the layout in the setting where it will be seen.
- Photograph a physical mockup at shelf distance rather than judging only a large screen image.
- Give the product name a clear position and distinguish it from promotional copy.
- Check small text, contrast, and the parts of the pack hidden by shelf edges or display trays.