What perfumes are similar to Regnum Opus?+
Fragrances with the closest accord profile to Regnum Opus by In The Box: Essencial Elixir by Natura; Essencial Oud by Natura; Homem Tato by Natura. Each is selected by cosine similarity on accord strengths and shared notes.
Why are these perfumes considered similar?+
Similarity is computed from three signals: (1) cosine similarity between accord strength vectors, (2) Jaccard overlap on note sets across the pyramid, (3) a curated "often compared to" list from community mentions. The top matches blend all three.
Which notes drive the Regnum Opus profile?+
Regnum Opus's opening signature comes from Almond, Tangerine, Bergamot, Water. Similar perfumes usually carry at least 2 of these same top notes alongside matching heart accords.
