The Trained Nose

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Bleu de Chanel against Bleu de Chanel Eau de Parfum

One number per era rather than one number overall — two fragrances can be near-identical at the opening and different things by the evening, and an average hides exactly that.
Chanel

Bleu de Chanel

· lasts about 7.7 h
Read the entry Centre the map here
Chanel

Bleu de Chanel Eau de Parfum

· lasts about 5.9 h
Read the entry Centre the map here

How close, and when

Across a whole wearing, Chanel Bleu de Chanel and Chanel Bleu de Chanel Eau de Parfum are very close. They are nearest during the opening and furthest apart in the heart, which is the part a single figure would average away.

86% opening · 0–1 h
80% heart · 1–3 h
86% drydown · 3–8 h
Measured across all twenty-four facets, from the notes below — not from the families on the boxes. They share 12 of 21 materials, which is worth holding beside the figures: a pair can share almost nothing and still converge, because different materials can smell of the same things.

What AKIN predicts

AKIN predicts these two are alike, and the evidence behind that is substantial.

Two signals sit on this page and are never averaged: what the note pyramids measure these two to share, and what AKIN’s resemblance graph predicts. Where they part, that is the finding rather than a fault.

The pyramids, side by side

Compared by material rather than by spelling, so a note recorded two ways is not counted as a difference.
top
both — Grapefruit, Lemon, Mint, Pink Pepper
Bleu de Chanel Eau de Parfum only — Aldehyde, Bergamot, Coriander
heart
both — Ginger, Jasmine, Nutmeg
Bleu de Chanel only — Iso E Super
Bleu de Chanel Eau de Parfum only — Melon
base
both — Cedar, Incense, Labdanum, Patchouli, Sandalwood
Bleu de Chanel only — Vetiver, White Musk
Bleu de Chanel Eau de Parfum only — Amber, Amberwood

Other comparisons worth reading

Pairs involving one of these two where the notes are fully recorded on both sides and AKIN has enough evidence for the pair to be worth reading.