Trudon Reggio Candela Top notes Grapefruit Heart notes Mandarin essential oil Brought back from Indochina in 1828, the mandarin has since thrived on the western shores of the Mediterranean Sea. Mediterraneo. Overlooking the Strait of Messina, it sculpts the Calabrian landscape without a hint of bitterness. The softness of the mandarin harks back to ancient times, when its essential oils composed una grammar elegante and fragrant.