April 14, 2026

5 min read

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Inside the labs where chemists engineer luxury perfumes

At Givaudan and IFF, chemists build—and safeguard—new aroma molecules tightly linked to emotion and memory

By April Long edited by Eric Sullivan

Kyle Bean

On the 11th floor of a nondescript office building on 57th street in Manhattan, pipette-wielding technicians in white lab coats hunch over glass vials and digital scales, carefully concocting perfumes. This is the Experimental Lab at Givaudan, one of the world’s largest fragrance manufacturers, and the work these technicians are doing is as meticulous as that of engineers layering silicon on a microchip. Their job is to produce trial batches of perfumers’ scent formulas—typically as many as 250 a day—which will be evaluated, tweaked and made again until one version is finalized. The walls are lined with thousands of jars and containers, each holding a unique aromatic substance—and in the room beyond sit another 50,000 trial vials, stacked on shelves that seem to recede into infinity.

“You come in, and it just looks scary,” says Givaudan vice president perfumer Stephen Nilsen. “But each bottle is a secret, a mystery. There’s a story in each one.”

For thousands of years perfume ingredients were simply distilled from flowers or extracted from plants. Then, in 1868, the first organic scent molecules were synthesized, opening a panorama of new olfactory possibilities. The market may celebrate a perfumer’s artistry, but innovation in the luxury-fragrance industry is ultimately driven by the chemists whose experiments bring new aroma molecules into existence.

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“We are at the ideation, proof-of-concept, wacky-science” stage of the process, says Paul Jones, director and principal scientist for International Flavors and Fragrances (IFF), another leading fragrance company. In IFF’s labs in Union Beach, N.J., Jones and his fellow organic chemists build models of speculative scent molecules and draft hypotheses before running raw materials through chemical reactions to see what new smells emerge. The goal: to create a scalable, custom-crafted chemical compound that IFF can use to competitive advantage.

The landscape of fragrance creation—a global market that data company Statista projects will be worth upward of $65 billion this year—is rife with trade secrets. Perfume formulas are rarely patented—they are fiercely guarded as trade secrets instead—but the engineered molecules themselves are routinely patented and trademarked, remaining exclusive “captives” to their inventors for years until going on the market.

Before even starting a reaction, Jones says, fragrance makers must consider the intellectual-property concerns for a molecule. “The analytical science is so good that if you don’t have IP-protected materials, then your creation is open for everybody to copy.” The stakes are especially high in the luxury market. “The difference between a fine fragrance and a consumer fragrance, like [one used in] laundry detergent, is that fine fragrance has allure and sophistication,” he says—an element of “sparkle” such as a hit of Saffiano, a molecule developed by IFF that smells like suede, “so when you put it on, you’re like, Oh, wait a minute.”

> Innovation in fine fragrance is driven by chemists whose experiments bring new aroma molecules into existence.

This molecular tinkering also yields replacements for endangered or restricted natural ingredients. Increasingly the fragrance houses are employing soft chemistry to achieve these goals, using biological processes such as fermentation or enzymatic transformation. “Think about how fermentation by yeast turns sugar into alcohol,” Nilsen says. “We have enzymes and strains of microorganisms that can similarly digest sugar or transform molecules to create complex molecular structures that can form the foundation for making beautiful smells.”

These molecules have the added benefit of being more sustainable. One example Nilsen cites is Ambrofix, a woody, amber-scented molecule that serves as a replacement for ambergris, a substance produced in the digestive tracts of sperm whales. Originally derived from sclareol, a compound in clary sage, Ambrofix is now produced via cane sugar fermentation. “We used to need thousands of acres to grow enough plants to make it,” Nilsen says. “Now we have a bioreactor where we use a hundred times less land to create the same molecule.”

Perfumery innovations