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Bourgeonal

Bourgeonal is a fresh, floral, watery muguet note with a lilial-like aldehydic character. It possesses a woody sandalwood depth and is reminiscent of notes found in Rive-Gauche and Calandre. It is also reported to have pheromone-like properties, with males often being more sensitive to it.

History

Brief History of Bourgeonal

Bourgeonal is a synthetic aromatic aldehyde and an important member of the “muguet aldehydes” family, used to create the floral scent of lily-of-the-valley. While earlier muguet notes like hydroxycitronellal (1905) and cyclamen aldehyde set the foundation for this scent profile, Bourgeonal was a later development. Originally submitted for olfactory evaluation in 1946 and later marketed by Givaudan, it gained greater prominence in the late 1990s, where it was valued for its powerful, diffusive fresh floral muguet character. It became a key synthetic replacement and floralizer, especially for Lilial and Lyral, owing to its superior stability in challenging mediums like soaps and detergents, cementing its place in both fine and functional perfumery.

Beyond its commercial use, Bourgeonal is scientifically significant for its unique biological activity. A groundbreaking 2003 study discovered that Bourgeonal acts as a chemo-attractant for human sperm by activating the olfactory receptor OR1D2 (hOR17-4), which is expressed both in the nose and on sperm cells. This discovery initiated a wave of research into ectopic olfactory receptors and led to the finding that Bourgeonal is the only known odor substance to which males have a higher average olfactory sensitivity than females. Although subsequent research has debated the nature of the sperm-attracting effect, the compound remains a critical molecule in chemosensory and reproductive biology studies.

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Bourgeonal is primarily a synthetic aromatic chemical prized for its powerful, diffusive, and highly substantive fresh muguet (lily-of-the-valley) scent. It serves as a key floraliser and replacement for regulated aldehydes, notably Lilial, providing a clean, watery-green, and highly radiant floral lift that is essential for modern compositions. Its profile makes it a staple in contemporary floral bouquets and high-performance fresh accords.

  • This synthetic molecule is often used to enhance floral bouquets, build fresh top and middle notes, and create elegant green-floral accords in a diverse range of products.

Due to its unique and versatile muguet-aldehyde character, Bourgeonal is incorporated into both traditional-style aldehydic and modern designer fragrances. It is explicitly noted to be an ingredient in fragrances such as Thierry Mugler’s iconic Alien. Furthermore, its woody sandalwood depth is said to be reminiscent of classic aldehydic floral-woody creations like Rive-Gauche and Calandre, where it provides lasting structure and brightness.

  • Its strong bloom and substantivity make it highly valuable for fine perfumes and personal care products where long-lasting freshness is required.

Beyond fine perfumery, Bourgeonal is extensively utilized in personal care products and home-care formulations. It is valued for its ability to provide an enticing, clean, and elegant green-floral base that offers long-lasting freshness in a wide range of cosmetic and toiletry applications.

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