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 Alien are white floral and amber. It opens with Jasmine Sambac, reveals Cashmeran at its heart, and dries down to Amber. It lasts very long and projects strongly; people reach for it in autumn and winter, mostly in the evening.
How a perfume unfolds →