Regnum Opus

In The Box Regnum Opus is a citrus, aquatic, and floral fragrance. The opening is tangerine, pink pepper, and cardamom. the heart settles on almond, watery notes, and rose. the dry-down rests on vanilla, agarwood (oud), and guaiac wood.

In The Box Regnum Opus is estimated to last 6–8 hrs on skin (a 4/5 longevity score). This is derived from the base-note composition — heavier base families like oriental, woody, and leather extend wear, while citrus-led blends tend to fade faster.

In The Box Regnum Opus projects at a strong level (4/5 sillage). Expect it to fill a room and announce itself before you arrive.

In The Box Regnum Opus is best worn during spring, summer, autumn, and winter. The note profile makes it well suited to daily wear, date night, evening, sport / outdoor, and formal. ScentCast pairs it with live weather and your calendar so you only reach for it on the right days.

Based on the note structure, a single morning application usually carries through the full day. Heat and humidity will shorten longevity; cooler weather and moisturised skin will extend it.

In The Box Regnum Opus fits collectors looking for citrus, aquatic, and floral signature. ScentCast members can add In The Box Regnum Opus to their collection and the app will surface it on the days the weather, occasion, and personal taste align — turning a single bottle into an informed rotation pick rather than a guess.