Abstract: A Maillard reaction product-decomposing agent as well as a beverage composition, a food composition, a functional food, a cosmetic, a supplement, a quasi drug, or a pharmaceutical product that contains the agent as an active ingredient. A Maillard reaction product-decomposing agent containing an extract of fennel as an active ingredient. A beverage composition, a food composition, a functional food, a cosmetic, a supplement, a quasi drug, or a pharmaceutical product that contains, as an active ingredient, a Maillard reaction product-decomposing agent containing an extract of fennel as an active ingredient.

Abstract: A provided a new substance that can enhance oxidized protein hydrolase activity or a substance that can inhibit glycation stress. An oxidized protein hydrolase activity enhancing agent containing an extract of fenugreek as an active ingredient. A glycation stress inhibitor containing extracts of fenugreek and fennel as active ingredients.

Abstract: The present invention provides methods of use of AGEs-degrading agents. The methods include anti-aging methods and methods of treating or reducing likelihood of diseases, aging of tissues, and hypofunction of tissues caused by AGEs. The AGEs-degrading agents contain at least one kind of plant extract obtained from peanut, rosemary, knotweed, leaf lettuce, sweet basil, thyme, spearmint, lemon balm, perilla, or rhubarb.