Lactobacillus/(Prunus Lannesiana/Prunus Yedoensis) Flower Ferment Filtrate is a filtrate of the product obtained by the fermentation of the flowers of Prunus lannesiana and Prunus yedoensis by the microorganism, Lactobacillus. The accepted scientific name for Prunus lannesiana is Prunus serrulata, and the accepted scientific name for Prunus yedoensis is Prunus x yedoensis.