Mandarin in perfume comes off the fruit's skin, not its juice. Producers cold-press the peel of Citrus reticulata and separate the oil, the standard method citrus suppliers like Eden Botanicals and Mountain Rose Herbs document for the whole family.
The tangerine question has a clean answer. A tangerine is a type of mandarin: same species, different cultivars, as the citrus processor Treatt sets out in its trade literature. The two oils smell close, with mandarin usually read as the fuller and sweeter of the pair. Chemistry explains the character. The oil is dominated by limonene, with a small amount of methyl anthranilate, the molecule that gives mandarin a soft, grape-like shadow other citruses lack.
Harvest timing matters too. Eden Botanicals lists green and red mandarin as separate oils, pressed from the fruit at different ripeness. The green, from earlier picking, smells sharper and zestier. The red, from ripe fruit, smells rounder and jammier. Same tree, two different notes.
Two modern references show the spread. Tom Ford's Mandarino di Amalfi (2014), composed by Calice Becker per Fragrantica, opens mandarin against lemon, basil and blackcurrant bud for a coastline-in-a-bottle effect. Byredo's Tobacco Mandarin (2020), an extrait from the Night Veils line, throws the same fruit over tobacco, leather and oud, and proves mandarin can hold its own in the dark.
One thing the counter staff will not tell you: peel oils are volatile, so the mandarin you fall for on the test strip does most of its work in the opening. Whatever holds the scent to your shirt at hour six is the base, not the citrus. Judge a mandarin fragrance by what it dries into, not what it opens with.
For the Amalfi citrus with a base that goes the distance, Amalfi is our Mandarino di Amalfi dupe as a 35% Extrait spray, and Tobacco & Citrus takes on Byredo's darker version. Both houses live in our Tom Ford-inspired and Byredo-inspired collections.