Similarity is based on note and accord overlap, not molecular analysis.
Differences come from accords and community votes on longevity and sillage.
The main accords of L Instant de Guerlain are floral and vanilla. It opens with Mandarin Orange and Red Apple, reveals Magnolia and Iris at its heart, and dries down to White Honey and Vanille. It lasts long and projects strongly; people reach for it in autumn and winter, day or night.
How a perfume unfolds →