In The Box Regnum Opus: released in 2022, woody, warm spicy and oud, about 9h on skin, projection 8/10, sillage 7/10. The alternatives below are matched to that profile.
The closest In The Box Regnum Opus dupe we found is In The Box Altum Magnis — 93% match, about $25 (estimate) versus about $45 for a 100 ml bottle.
The five closest scent matches — the best In The Box Regnum Opus dupes we found, ranked by opening & dry-down similarity:
| # | Alternative | Scent match | Est. price (100 ml) | Longevity vs In The Box Regnum Opus | Projection |
|---|---|---|---|---|---|
| 1 | In The Box Altum Magnis | 93% | about $25 (−44%) | 10h vs 9h | 7/10 |
| 2 | French Avenue Miraj Absolu | 89% | about $45* | 7h vs 9h | 8/10 |
| 3 | Maison Alhambra Exclusif Tabac | 85% | about $25* (−44%) | 8h vs 9h | 7/10 |
| 4 | PARIS CORNER Emir Fascination | 83% | about $35 (−22%) | 7h vs 9h | 7/10 |
| 5 | Fragrance World Divine | 83% | about $20* (−56%) | 8h vs 9h | 6/10 |
Evokes the rich woody and spicy depth of Regnum Opus, featuring a comparable blend of warm vanilla and resinous oud.
It shares its warm spicy, woody and animalic accords with In The Box Regnum Opus, lasts about 10h against 9h and carries 107 community ratings.
Mirrors the complex animalic and coffee-infused character found in Regnum Opus, with a dense, long-lasting trail.
It shares its woody, warm spicy and vanilla accords with In The Box Regnum Opus, opens on Bergamot too, lasts about 7h against 9h and carries 264 community ratings.
Shares a similar rich, spicy warmth and woody presence that aligns closely with the heavy base notes of Regnum Opus.
It shares its woody, warm spicy and vanilla accords with In The Box Regnum Opus, lasts about 8h against 9h and carries 421 community ratings.
Offers a comparable cozy warmth and rich spice blend, echoing the overall mood of Regnum Opus.
It shares its woody, warm spicy and powdery accords with In The Box Regnum Opus, opens on Bergamot too, lasts about 7h against 9h and carries 73 community ratings.
Leans into the sweet amber and creamy vanilla territory reminiscent of the darker tones of Regnum Opus.
It shares its powdery, amber and musky accords with In The Box Regnum Opus, lasts about 8h against 9h and carries 4 community ratings.
Fragrance World Divine, at about $20 for 100 ml (estimate) — around 55% less than In The Box Regnum Opus.
In The Box Altum Magnis, at about 10h on skin, against about 9h for In The Box Regnum Opus.
In The Box Altum Magnis, at 93% overall scent match across the opening and the dry-down.
At 4 sprays a day — about 146 ml a year — In The Box Altum Magnis saves you about $30 a year against In The Box Regnum Opus. Assumes 100 ml bottles on both sides; prices are estimates.
Across 2,358 originals, the median designer bottle is $120 and its closest match $30 — the Dupe Report 2026.
On an 8-hour day, these cover it: In The Box Altum Magnis (9.7h) and Fragrance World Divine (8.0h) — 2 of 5.
In The Box Regnum Opus notes, performance and price
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Updated 2026-08-30.