The note presents as an immediate burst of exhilarating freshness, a sparkling and luminous opening that dances across the olfactive palate. Its texture is often described as crisp, juicy, and effervescent, akin to the zest of a freshly peeled fruit. Depending on its specific manifestation (lemon, bergamot, orange, grapefruit, mandarin, lime), it can range from sharply piquant and invigoratingly tart to sweetly succulent and gently tangy, sometimes bearing a verdant, slightly bitter edge. Its intensity is typically high upon application, radiating with a vibrant, almost electric projection that captivates instantly. As a quintessential top note, its longevity is inherently fleeting, designed to create an immediate impact and then gracefully recede, making way for the heart notes. It rarely settles into the deep base but leaves a ghost of its brightness for a while.