HombreOilsRare perfumery, preserved

A cologne · the worked cases

Worked out when the page was built

The HTML equivalents of the accord’s two tools, for reading without JavaScript. Back to A cologne.

What happens if… every single change, worked out

The same model, run when this page was built. Figures are modeled: parts, and shares per 100 parts; odour space is the share of the accord whose components carry each word; the dry-down uses the half-lives top 1.5 h, heart 6 h, base 12 h (the simulator’s site constants, not measurements); odour activity is share ÷ measured threshold, compared within one medium and unit, never across (a teaching ratio, not a measurement of this accord). This teaching accord is not a finished product and is not assessed. Nothing is for sale.

Double bergamot essential oil (×2)
1 · Composition
bergamot essential oil 45 → 90 parts (45.0 → 62.1 per 100); the others ×0.69.
2 · Molecules
with bergamot essential oil rise limonene, linalyl acetate, linalool and bergapten (no shares on record).
3 · Odour space
“citrus” 45.0 → 62.1, “fresh” 60.0 → 72.4, “bright” 15.0 → 10.3, “medicinal” 10.0 → 6.9; no descriptor on record: 20.0 → 13.8.
4 · Perceived character
A modeled reading, not a prediction: more “citrus” and “fresh” and less “bright” and “medicinal”, with more of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 79.3 / 20.7 / 0.0; half gone at 2.1 h → 1.9 h.
6 · Odour activity
bergamot essential oil: no threshold on record.
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. Components carrying “citrus” go from 45.0 to 62.1 per 100 parts, because bergamot essential oil carries it (its descriptors field).
  2. The modeled dry-down moves: top-class components go from 70.0 to 79.3 per 100 parts, and half the accord is gone at 1.9 h instead of 2.1 h (bergamot essential oil is top, from its role in the accord).
Remove bergamot essential oil
1 · Composition
bergamot essential oil 45 → 0 parts (45.0 → 0.0 per 100); the others ×1.82.
2 · Molecules
with bergamot essential oil leave limonene, linalyl acetate, linalool and bergapten (no shares on record).
3 · Odour space
“citrus” 45.0 → 0.0, “fresh” 60.0 → 27.3, “bright” 15.0 → 27.3, “medicinal” 10.0 → 18.2; no descriptor on record: 20.0 → 36.4.
4 · Perceived character
A modeled reading, not a prediction: more “bright” and “medicinal”, less “fresh” and no “citrus” left, with less of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 45.5 / 54.5 / 0.0; half gone at 2.1 h → 3.0 h.
6 · Odour activity
bergamot essential oil: no threshold on record.
7 · Regulation flags
Flags leaving the accord: IFRA Standard: Bergamot oil expressed; IFRA Standard: Citrus oils and other furocoumarins containing essential oils.
Why did this change matter?
  1. It takes the “IFRA Standard: Bergamot oil expressed” flag (restriction) off the accord: it names bergamot essential oil and no other component.
  2. It takes the “IFRA Standard: Citrus oils and other furocoumarins containing essential oils” flag (restriction) off the accord: it names bergamot essential oil and no other component.
  3. bergamot essential oil carried “citrus” and no other component does on record, so the word leaves the modeled profile.
Double limonene (×2)
1 · Composition
limonene 15 → 30 parts (15.0 → 26.1 per 100); the others ×0.87.
2 · Molecules
limonene itself rises.
3 · Odour space
“bright” 15.0 → 26.1, “citrus” 45.0 → 39.1, “fresh” 60.0 → 65.2, “medicinal” 10.0 → 8.7; no descriptor on record: 20.0 → 17.4.
4 · Perceived character
A modeled reading, not a prediction: more “bright” and “fresh” and less “citrus” and “medicinal”, with more of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 73.9 / 26.1 / 0.0; half gone at 2.1 h → 2.0 h.
6 · Odour activity
limonene (0.038 ppm (v/v) in air, measured): ×1.74; no ratio with linalyl acetate (air, ng/L); no ratio with linalool (air, ng/L).
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. Components carrying “bright” go from 15.0 to 26.1 per 100 parts, because limonene carries it (its descriptors field).
  2. The modeled dry-down moves: top-class components go from 70.0 to 73.9 per 100 parts, and half the accord is gone at 2.0 h instead of 2.1 h (limonene is top, from its volatility class, modeled).
Remove limonene
1 · Composition
limonene 15 → 0 parts (15.0 → 0.0 per 100); the others ×1.18.
2 · Molecules
limonene itself leaves.
3 · Odour space
“bright” 15.0 → 0.0, “citrus” 45.0 → 52.9, “fresh” 60.0 → 52.9, “medicinal” 10.0 → 11.8; no descriptor on record: 20.0 → 23.5.
4 · Perceived character
A modeled reading, not a prediction: more “citrus” and “medicinal”, less “fresh” and no “bright” left, with less of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 64.7 / 35.3 / 0.0; half gone at 2.1 h → 2.3 h.
6 · Odour activity
limonene (0.038 ppm (v/v) in air, measured): ×0; no ratio with linalyl acetate (air, ng/L); no ratio with linalool (air, ng/L).
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. limonene carried “bright” and no other component does on record, so the word leaves the modeled profile.
  2. Components carrying “citrus” go from 45.0 to 52.9 per 100 parts, because limonene, which does not carry it, now takes less of the accord.
  3. The modeled dry-down moves: top-class components go from 70.0 to 64.7 per 100 parts, and half the accord is gone at 2.3 h instead of 2.1 h (limonene is top, from its volatility class, modeled).
Double linalyl acetate (×2)
1 · Composition
linalyl acetate 10 → 20 parts (10.0 → 18.2 per 100); the others ×0.91.
2 · Molecules
linalyl acetate itself rises.
3 · Odour space
“refined” 10.0 → 18.2, “sweet” 10.0 → 18.2, “fresh” 60.0 → 54.5, “citrus” 45.0 → 40.9; no descriptor on record: 20.0 → 18.2.
4 · Perceived character
A modeled reading, not a prediction: more “refined” and “sweet” and less “fresh” and “citrus”, with less of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 63.6 / 36.4 / 0.0; half gone at 2.1 h → 2.3 h.
6 · Odour activity
linalyl acetate (110.9 ng/L in air, measured): ×1.82; lead in air (ng/L): linalool; linalyl acetate 0.03 → 0.06 of the leader; no ratio with limonene (air, ppm (v/v)).
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. Components carrying “refined” go from 10.0 to 18.2 per 100 parts, because linalyl acetate carries it (its descriptors field).
  2. The modeled dry-down moves: heart-class components go from 30.0 to 36.4 per 100 parts, and half the accord is gone at 2.3 h instead of 2.1 h (linalyl acetate is heart, from its role in the accord).
Remove linalyl acetate
1 · Composition
linalyl acetate 10 → 0 parts (10.0 → 0.0 per 100); the others ×1.11.
2 · Molecules
linalyl acetate itself leaves.
3 · Odour space
“refined” 10.0 → 0.0, “sweet” 10.0 → 0.0, “fresh” 60.0 → 66.7, “citrus” 45.0 → 50.0; no descriptor on record: 20.0 → 22.2.
4 · Perceived character
A modeled reading, not a prediction: more “fresh” and “citrus” and no “refined” and “sweet” left, with more of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 77.8 / 22.2 / 0.0; half gone at 2.1 h → 1.9 h.
6 · Odour activity
linalyl acetate (110.9 ng/L in air, measured): ×0; lead in air (ng/L): linalool; no ratio with limonene (air, ppm (v/v)).
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. linalyl acetate carried “refined” and no other component does on record, so the word leaves the modeled profile.
  2. linalyl acetate carried “sweet” and no other component does on record, so the word leaves the modeled profile.
  3. The modeled dry-down moves: heart-class components go from 30.0 to 22.2 per 100 parts, and half the accord is gone at 1.9 h instead of 2.1 h (linalyl acetate is heart, from its role in the accord).
Double linalool (×2)
1 · Composition
linalool 10 → 20 parts (10.0 → 18.2 per 100); the others ×0.91.
2 · Molecules
linalool itself rises.
3 · Odour space
“medicinal” 10.0 → 18.2, “sharp” 10.0 → 18.2, “fresh” 60.0 → 54.5, “citrus” 45.0 → 40.9; no descriptor on record: 20.0 → 18.2.
4 · Perceived character
A modeled reading, not a prediction: more “medicinal” and “sharp” and less “fresh” and “citrus”.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 72.7 / 27.3 / 0.0; half gone at 2.1 h → 2.0 h.
6 · Odour activity
linalool (3.2 ng/L in air, measured): ×1.82; lead in air (ng/L): linalool; no ratio with limonene (air, ppm (v/v)).
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. Components carrying “medicinal” go from 10.0 to 18.2 per 100 parts, because linalool carries it (its descriptors field).
  2. The modeled dry-down moves: top-class components go from 70.0 to 72.7 per 100 parts, and half the accord is gone at 2.0 h instead of 2.1 h (linalool is top, from its volatility class, modeled).
Remove linalool
1 · Composition
linalool 10 → 0 parts (10.0 → 0.0 per 100); the others ×1.11.
2 · Molecules
linalool itself leaves.
3 · Odour space
“medicinal” 10.0 → 0.0, “sharp” 10.0 → 0.0, “fresh” 60.0 → 66.7, “citrus” 45.0 → 50.0; no descriptor on record: 20.0 → 22.2.
4 · Perceived character
A modeled reading, not a prediction: more “fresh” and “citrus” and no “medicinal” and “sharp” left, with less of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 66.7 / 33.3 / 0.0; half gone at 2.1 h → 2.2 h.
6 · Odour activity
linalool (3.2 ng/L in air, measured): ×0; lead in air (ng/L): linalool → linalyl acetate; no ratio with limonene (air, ppm (v/v)).
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. In odour activity (share ÷ measured threshold, compared in air, ng/L), the lead passes from linalool to linalyl acetate: a trace with a low threshold counts far beyond its share.
  2. linalool carried “medicinal” and no other component does on record, so the word leaves the modeled profile.
  3. linalool carried “sharp” and no other component does on record, so the word leaves the modeled profile.
Double lavender essential oil (×2)
1 · Composition
lavender essential oil 20 → 40 parts (20.0 → 33.3 per 100); the others ×0.83.
2 · Molecules
with lavender essential oil rise linalool, linalyl acetate and α-terpineol (no shares on record).
3 · Odour space
“fresh” 60.0 → 50.0, “citrus” 45.0 → 37.5, “bright” 15.0 → 12.5, “medicinal” 10.0 → 8.3; no descriptor on record: 20.0 → 33.3.
4 · Perceived character
A modeled reading, not a prediction: less “fresh” and “citrus”, with less of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 58.3 / 41.7 / 0.0; half gone at 2.1 h → 2.5 h.
6 · Odour activity
lavender essential oil: no threshold on record.
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. The modeled dry-down moves: heart-class components go from 30.0 to 41.7 per 100 parts, and half the accord is gone at 2.5 h instead of 2.1 h (lavender essential oil is heart, from its role in the accord).
  2. Components carrying “fresh” go from 60.0 to 50.0 per 100 parts, because lavender essential oil, which does not carry it, now takes more of the accord.
Remove lavender essential oil
1 · Composition
lavender essential oil 20 → 0 parts (20.0 → 0.0 per 100); the others ×1.25.
2 · Molecules
with lavender essential oil leave linalool, linalyl acetate and α-terpineol (no shares on record).
3 · Odour space
“fresh” 60.0 → 75.0, “citrus” 45.0 → 56.3, “bright” 15.0 → 18.8, “medicinal” 10.0 → 12.5; no descriptor on record: 20.0 → 0.0.
4 · Perceived character
A modeled reading, not a prediction: more “fresh” and “citrus”, with more of it in the opening.
5 · Dry-down
top / heart / base 70.0 / 30.0 / 0.0 → 87.5 / 12.5 / 0.0; half gone at 2.1 h → 1.7 h.
6 · Odour activity
lavender essential oil: no threshold on record.
7 · Regulation flags
The accord’s flags do not change.
Why did this change matter?
  1. The modeled dry-down moves: heart-class components go from 30.0 to 12.5 per 100 parts, and half the accord is gone at 1.7 h instead of 2.1 h (lavender essential oil is heart, from its role in the accord).
  2. Components carrying “fresh” go from 60.0 to 75.0 per 100 parts, because lavender essential oil, which does not carry it, now takes less of the accord.

Version 1 against version 2

Modeled · A → B

A · Version 1 · The cologne as written → B · Version 2 · Less bergamot oil

1 · What changedmodeled

  • bergamot essential oil: 45 → 25 parts (45.0 → 25.0 per 100)
  • limonene: 15 → 30 parts (15.0 → 30.0 per 100)
  • linalyl acetate: 10 → 15 parts (10.0 → 15.0 per 100)
  • linalool: the same 10 parts (10.0 → 10.0 per 100)
  • lavender essential oil: the same 20 parts (20.0 → 20.0 per 100)
teaching parts · modeled

a modeled value: a stated assumption, not a measurement

teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making

field: this accord’s record · teaching variants · version 2 · teaching parts

confidence C

2 · Molecules

bergamot essential oil falls, with the molecules its record names: limonene, linalyl acetate, linalool and bergapten (no shares on record); limonene itself rises; linalyl acetate itself rises.

Limonene · linalyl acetate · linalool · Bergapten · Limonene · linalyl acetate

3 · Odour spacemodeled

“citrus” 45.0 → 25.0, “bright” 15.0 → 30.0, “refined” 10.0 → 15.0, “sweet” 10.0 → 15.0, “fresh” 60.0 → 55.0 per 100 parts (the share of the accord whose components carry the word); no descriptor on record: 20.0 → 20.0.

bergamot essential oil: descriptors · documented

odore: caratteristico, gradevole, fresco, richiamante quello del pericarpo del Bergamotto;

Disciplinare per la denominazione di origine protetta “Bergamotto di Reggio Calabria – olio essenziale” (the Italian… · listed on the record

the specification’s odour line, in English; colour “da verde a giallo verdastro”, green to greenish yellow (PDO-1)

field: the bergamot essential oil record · descriptors

confidence A

limonene: descriptors · house interpretation

the house’s own reading, labelled as such

the house card’s words (the /materials naturals limonene card); no descriptor source is filed

field: the limonene record · descriptors

confidence C

linalyl acetate: descriptors · house interpretation

the house’s own reading, labelled as such

the house essay’s words for the ester in fine lavender; no descriptor source is filed

field: the linalyl acetate record · descriptors

confidence C

“citrus” · “bright” · “refined” · “sweet” · “fresh”

4 · A modeled readingmodeled

B against A. A modeled reading, not a prediction: more “bright” and “refined” and less “citrus” and “fresh”, with less of it in the opening.

Generated from the movements above: a modeled reading, not a prediction and not a smell.

5 · Dry-downmodeled

Top / heart / base: 70.0 / 30.0 / 0.0 in A → 65.0 / 35.0 / 0.0 in B, per 100 parts; half the accord gone at 2.1 h → 2.2 h (modeled half-lives: top 1.5 h, heart 6 h, base 12 h).

half-lives · modeled

a modeled value: a stated assumption, not a measurement

the site constants of the evaporation simulator on /science for limonene (its Top note), Hedione (Heart) and Ambroxan (Base); “chosen for the simulator and are not measurements”

bergamot essential oil: role · perfumery convention

the trade’s shared vocabulary; no single source

the trade’s top / heart / base convention for this material

field: this accord’s record · role

confidence B

6 · Odour activitymodeled

compared in air (ng/L): linalool leads in both; no measured threshold on record for bergamot essential oil and lavender essential oil. Thresholds from different media or units are never compared; a teaching ratio, not a measurement of this accord.

limonene: 0.038 ppm (v/v) in air · measured

Nagata (2003). Measurement of Odor Threshold by Triangle Odor Bag Method · listed on the record

isomer not stated, as this record; in water, (R)-limonene 13 µg/kg and (S)-limonene 8.0 µg/kg (OT-1)

field: the limonene record · threshold

confidence A

linalyl acetate: 110.9 ng/L in air · measured

Elsharif et al. (2015). Structure-odor relationships of linalool, linalyl acetate and their corresponding oxygenated derivatives · listed on the record

the group value (geometric mean); the eight assessors ranged from 12.7 to 407 ng/L

field: the linalyl acetate record · threshold

confidence A

linalool: 3.2 ng/L in air · measured

Elsharif et al. (2015). Structure-odor relationships of linalool, linalyl acetate and their corresponding oxygenated derivatives · listed on the record

in water, the racemate 0.58 µg/kg and (R)-linalool 0.087 µg/kg (OT-1); the site’s older figure came from a proprietary compilation (OT-4), withdrawn as a source on 2026-09-30, and is not repeated

field: the linalool record · threshold

confidence A

7 · Regulation flags

A flag follows presence, not dose: a smaller dose keeps the flag (several IFRA Standards on record restrict by concentration in finished products), and a teaching accord is neither a finished product nor assessed. US law: not on record. Not legal advice.

8 · Provenance

The same materials in both, so the provenance does not change. No price: nothing on this site is for sale.

Why could it smell different?
  1. Components carrying “citrus” go from 45.0 to 25.0 per 100 parts, because bergamot essential oil carries it and moves.
    documented

    odore: caratteristico, gradevole, fresco, richiamante quello del pericarpo del Bergamotto;

    Disciplinare per la denominazione di origine protetta “Bergamotto di Reggio Calabria – olio essenziale” (the Italian… · listed on the record

    the specification’s odour line, in English; colour “da verde a giallo verdastro”, green to greenish yellow (PDO-1)

    field: the bergamot essential oil record · descriptors

    confidence A

  2. The modeled dry-down moves: top-class components go from 70.0 to 65.0 per 100 parts, and half the accord is gone at 2.2 h in B against 2.1 h in A (bergamot essential oil is top, from its role in the accord).
    perfumery convention

    the trade’s shared vocabulary; no single source

    the trade’s top / heart / base convention for this material

    field: this accord’s record · role

    confidence B

The top causes in the model, each with the record field it rests on. Modeled, not measured; not a prediction of how anything smells.

teaching accord only: not a commercial perfume formula, not for skin · the record