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Iodine

Q: Is Iodine natural or synthetic?

. Extraction: Elemental iodine is not extracted for perfumery use. The iodine-like character in fragrances comes from seaweed absolute (steam distillation or solvent extraction of marine algae) or synthetic reconstruction..

NATURAL AND SYNTHETIC, POPULAR AND WEIRD / aquatic · metallic · warm

Iodine

Category	NATURAL AND SYNTHETIC, POPULAR AND WEIRD
Subcategory	aquatic · metallic · warm
Origin
Volatility	Base Note
Botanical	N/A — chemical element
Odor Strength	Medium
Producing Countries	Chile, Japan, United States
Pyramid	Base

Sharp, antiseptic-marine tang. The smell of a wound cleaned at the beach -- brown Betadine, salt air, warm kelp drying on rocks.

Scent
The Full Story
Fun Fact
Extraction & Chemistry
In Perfumery

Scent

Sharp, brown, medicinal. Like the inside of a first-aid kit opened near the ocean -- antiseptic sting layered over warm brine and drying kelp. Not clean, not fresh. A dark, honest marine note.

Evolution over time

Immediately

Sharp, antiseptic sting. Medicinal and briny, like fresh tincture of iodine.

After a few hours

The sting softens. Warm kelp, dried salt, a quieter marine depth.

After a few days

A faint, saline-mineral residue. Subtle and persistent.

The Full Story

Iodine is not a perfumery raw material in the traditional sense. The note refers to the sharp, medicinal-marine smell of elemental iodine or iodine tincture (iodine dissolved in alcohol), which is strongly associated with seashore environments where iodine-rich seaweed dries on rocks.

In perfumery, iodine-like qualities emerge naturally from certain marine and seaweed absolutes, or are recreated synthetically using specific combinations. The smell is not the clean ozonic freshness of Calone-based marine accords -- it is darker, more medicinal, more primal. It suggests tide pools, not open ocean.

Perfumers use seaweed absolute, traces of phenolic materials, and iodine-adjacent synthetic accords to achieve this effect. The goal is a raw, coastal realism that commercial aquatic fragrances typically avoid.

The note functions as an accent in dark marine, animalic, and avant-garde compositions. It adds an uncomfortably honest seashore quality -- the smell of actual coast rather than a perfume fantasy of the sea.

This note in Première Peau. Gravitas Capitale. Sample all seven extraits in the Discovery Set.

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Related: Aqual · Aquozone · Calone · Calone 1951 · Coral Limestone · Crustaceans · Diving Suit · Fish

Did You Know?

Did you know?

Bernard Courtois discovered elemental iodine in 1811 while extracting sodium salts from seaweed ash at his family's saltpeter works in Paris. He noticed a violet vapor rising from the ash when he added too much sulfuric acid -- the element takes its name from the Greek ioeides, meaning violet-colored.

Extraction & Chemistry

Extraction method: Elemental iodine is not extracted for perfumery use. The iodine-like character in fragrances comes from seaweed absolute (steam distillation or solvent extraction of marine algae) or synthetic reconstruction.

Molecular Formula	I₂
CAS Number	7553-56-2
Botanical Name	N/A — chemical element
IFRA Status	No known restrictions
Synonyms	IODINE TINCTURE · IODIDE
Physical Properties
Odor Strength	Medium
Boiling Point	184.35 °C. @ 760.00 mm Hg (est)
Flash Point	32.00 °F. TCC ( 0.00 °C. ) (est)
Specific Gravity	4.93000 @ 25.00 °C.

In Perfumery

Accent note in dark marine, animalic, and avant-garde compositions. Functions as a realism agent, adding the medicinal-briny edge of actual seashore to aquatic and marine accords. Achieved through seaweed absolute, phenolic traces, and iodine-adjacent synthetics. Used to counterpoint the clean, commercial freshness of Calone-based marine notes.