Upcycled Flower Fragrances

Solving global warming takes more than just trees

Unilever has introduced a new initiative to produce sustainable fragrances by repurposing waste flowers. The brand embarks on this project in partnership with the University of Nottingham.

Upcycling flowers in order to create sustainable fragrances allows Unilever to reduce emissions and dependence on petrochemical ingredients traditionally used in fragrance production. By applying advanced extraction techniques, such as ultrasonication and Soxhlet extraction, researchers are able to efficiently derive essential oils and other valuable compounds from surplus plants like roses, marigolds, and tulips. This process not only makes use of agricultural waste but also speeds up extraction times, as well.

This project is part of Unilever's broader efforts to replace environmentally harmful feedstocks in its supply chain. Since 2022, the company has been collaborating with Geno to develop plant-based alternatives to palm oil and petrochemical-derived cleaning agents. In this latest venture, ornamental flower waste from Bridge Farm Group, a UK-based producer, is transformed into high-value ingredients for use in fragrances, personal care products, and textiles.

Image Credit: Christopher Nunn/Unilever