To provide a lipolysis agent, a slimming agent, and a cellulite-ameliorating agent, which stimulate decomposition of fat accumulated in the adipose tissue, to thereby exhibit body-slimming effect and which is effective for inhibition or prevention of obesity and amelioration of prone to obesity. The lipolysis stimulator of the invention contains, as effective ingredients, a plant Huang Hua Cai or an extract thereof, and a xanthine derivative.
