NATURAL PERFUME ACADEMY GLOSSARY


The Natural Perfume Glossary compiled by Justine Crane & NPA



Browse the glossary using this index

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I

Incense

notes incorporating sweet, powdery and resinous essences

Indole

Indole is an aromatic heterocyclic organic compound.

It naturally occurs in human feces and has an intense faecal odour. At very low concentrations though, it has a very flowery smell, and is a constituent of many floral scents (such as orange blossoms) and perfumes.

It tends to lend a "dirty" quality to a perfume.

Infusion

whole botanical materials immersed in a hot medium, diluent or carrier; botanical material in warmed oil is considered an infusion

Insoluble

raw materials (essential oils, resins, absolutes, concretes, etc.) which do not dissolve in a diluent (alcohol, solvent, oil, water, etc.)