Red-Light Mask Travel Cases

This is a pure case accessory for a device someone else already made and sold — it carries no electronics, no LED components, and no cosmetic formulation, so it sits outside any device or cosmetics regulatory regime and stays genuinely solo-founder-buildable. The market it rides is real and growing: at-home red-light therapy masks have become an established category of consumer beauty-tech, and once someone owns a rigid LED mask they immediately have a real, unsolved travel problem (most masks ship in a flimsy box, not something you can throw in a suitcase). The business is a fitted-foam or molded case sized to the handful of popular mask models, sold direct to owners of those devices and discovered through skincare-device communities and search rather than mass paid social. The honest constraint is that this is an accessory tied to someone else's product line: a founder needs accurate dimensions for each mask model, the addressable buyer pool is only people who already own a mask, and a case only fits a handful of specific models unless it ships in multiple fitted SKUs, which adds real inventory complexity for a modest niche market.

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