In 1966 Dior released a men's eau de toilette containing 2.5 percent of a molecule almost nobody outside a Swiss laboratory had ever smelled.
The fragrance was Eau Sauvage, composed by Edmond Roudnitska. The molecule was hedione, the trade name for methyl dihydrojasmonate.
It was found by the chemist Edouard Demole while he was doing his PhD, in 1959, and patented within five years. Firmenich named it from the Greek hedone, meaning pleasure. It is structurally close to methyl jasmonate, one of the key odorants in real jasmine, and it smells of jasmine too, though faintly.
Faintly is the point. Hedione does not shout. What it does is carry everything around it further. Christian Chapuis of Firmenich put it plainly: hedione "rendered perfumes round, floral and diffusive", giving them "a greater faculty to fill a room with fragrance".
It was expensive at first, which is why Roudnitska used so little of it. As the price came down, perfumers used more. Chanel N19 in 1971 ran at 12.6 percent. Diorella in 1972 at 8 percent. Van Cleef & Arpels First in 1976 at 18 percent. Comme des Garcons Odeur 53 in 1998 at 65 percent.
That climb tracks the arrival of transparent, airy freshness in fine fragrance. The see-through quality in almost every clean modern scent leans on this one material.
There is a neurological footnote too. In 2015 researchers at Bochum reported that hedione activates VN1R1, a candidate pheromone receptor in the human nose, and produced stronger limbic responses than natural perfume molecules did. Interesting. Not proof it will do anything for your love life.
Now the name trap. Eau Sauvage (1966) and Sauvage (2015) are two different fragrances, forty-nine years apart, and people buy the wrong one constantly. Eau Sauvage is the citrus and jasmine classic described above. Sauvage is the bergamot and ambroxan blockbuster. Same house, same word, almost nothing else in common.
If it is the transparent fresh style you came for, Aqua De Gio is our take on Armani Acqua di Gio, a UK-made spray at 35% concentration. If you meant the modern Sauvage, that is Savage Essence. Both are broken down in the best Acqua di Gio dupe in the UK and the best Dior Sauvage dupe in the UK.
