In 1882 a French perfumer put a laboratory molecule into a fine fragrance for the first time, and perfumery has not been the same since.
The perfumer was Paul Parquet, the house was Houbigant, and the fragrance was Fougere Royale. The molecule was coumarin, isolated from the tonka bean. It smells of cut hay, sweet almond and dry tobacco, with a soft powdery warmth underneath.
That single decision created the fougere family, the lavender, coumarin and oakmoss structure that has run men's fragrance for over a century. Almost every barbershop scent, every aromatic fresh spray and most modern sweet masculines trace back to that skeleton.
Coumarin occurs naturally in plenty of plants. Tonka beans are the richest source used in perfumery, but it also turns up in sweet vernal grass, in cinnamon and in liatris. The smell of freshly mown grass drying in the sun is largely coumarin doing its thing.
Now the regulation, because it confuses people. The US Food and Drug Administration prohibited coumarin as a food additive in 1954, and the rule still sits in the code at 21 CFR 189.130, which treats any food containing added coumarin or tonka bean extract as adulterated. High doses damaged the liver in animal studies. That ban applies to food. It has never applied to fragrance. In perfumery coumarin is an allergen managed by IFRA rather than banned, capped at 1.5% in the finished product.
The natural versus synthetic argument falls apart here. Coumarin extracted from a tonka bean and coumarin made in a reactor are the same molecule, atom for atom. Your nose cannot tell them apart because there is nothing to tell apart. The synthetic route is cheaper, cleaner and does not need a tropical harvest.
Jean Paul Gaultier's Le Male Elixir is a clean modern example: lavender and mint on top, tonka bean, honey and tobacco underneath. Lavender over coumarin is the 1882 idea, still selling.
That structure is exactly what our L'homme Elixr is built on, our take on Le Male Elixir. If you want the note undiluted, Tonkara is our take on Montale Arabians Tonka. Both UK made sprays at 35% concentration. More in the best Jean Paul Gaultier dupes in the UK.