This fragrance is part of our Yellowstone Forever Collection, a creative collaboration with Caswell-Massey, Yellowstone National Park, and renowned IFF perfumer Laurent Le Guernec. The Yellowstone Living Floral Project enables us to work alongside the park botanists to study and identify the molecular scent signatures of dozens of rare and endangered plant species unique to Yellowstone National Park, and to utilize these scent signatures in our exclusive fragrance creations. The technique is accomplished without damaging the plants to create “nature identical” scent molecules using sustainably sourced materials.