The note of Fleur de Sel manifests as a crystalline, shimmering sensation rather than a dense, heavy aroma. It opens with an immediate, bracing iodic freshness, reminiscent of cool sea spray on a crisp morning. There's a mineralic transparency to it, sharp yet remarkably delicate, like light refracting through a freshly gathered salt crystal. While predominantly saline and airy, a subtle, almost imperceptible floral whisper can sometimes be detected – a metaphor for its exquisite fineness and the "bloom" of salt. It possesses an effervescent quality that lifts other notes, acting as a natural enhancer. Its texture is dry and sparkling, evoking the sensation of clean skin after a dip in the ocean. Projection is typically moderate, designed to provide an expansive, clean aura rather than an overwhelming presence. Longevity is surprisingly good for such an ethereal concept, settling into a skin-like, subtly salty warmth that lingers. It functions primarily as a top-to-heart note, providing an initial invigorating burst and then seamlessly weaving its mineralic thread through the heart of a composition.