A consultation instead of a category tree
The shopper never meets a filter panel. The flow asks what they are trying to change, what their days look like and what they already take, then returns a stack with a reason attached to each item rather than a grid sorted by margin. Questions are ordered so the earliest answers do the most narrowing, which is what makes a conversation finishable rather than abandoned halfway: 71% of shoppers who start the consultation complete it. The recommendation set, not a landing page, is the surface being optimised.
