A coherent collection can stretch across different use cases while still feeling unmistakably connected.
Define the repeatable signals
Choose a small set of principles for form, surface, interaction, color and detail. These signals should be flexible enough to work across scale and category, but specific enough to create recognition.
Protect product-level usability
Brand consistency should not override the needs of the body or the task. The best systems allow each product to solve its own ergonomic problem while retaining shared cues.
Connect product and packaging
Packaging, product education and digital content should use the same hierarchy and language. This supports clearer retail navigation and makes future extensions easier to understand.