Abstract: The invention relates to a method for obtaining an active ingredient having an immediate anti-wrinkle and skin-tensioning effect, by extracting and purifying high molecular weight polysaccharides from oat bran, fibers and/or grains, and solubilizing and stabilizing the polysaccharides in water. The invention also relates to the product thus obtained, to uses thereof, and to cosmetic compositions containing this active ingredient. The oat bran polysaccharides include alpha-glucans having a molecular weight of between 25 kDa and 300 kDa.

Abstract: The invention relates to a method of obtaining a firming active principle resulting from the solubilization of Cucurbita pepo seed meal treated by means of enzymatic hydrolysis. The invention also relates to the active principle thus obtained and to the uses thereof in cosmetics.

Abstract: The invention concerns an active principle with instant skin-tightening effect useable in cosmetics, the method for obtaining same and compositions comprising said active principle. The source material consists of a white almond press cake.

Abstract: A process for extracting an active principle from yeast whereby the active principle is used to retard the degradation of the dermo-epidermal junction to improve the surface condition of the skin. The process includes forming a mixture of solubilized ground yeast in a basic medium, hydrolyzing the proteins of the mixture in a basic medium, agitating the mixture for 8 to 52 hours, filtering the mixture to separate the soluble and insoluble phases, washing with water so as to purify the active ingredient, concentrating and filtering to increase an active oligosaccharide fraction, and sterile filtering the active fraction. The active fraction is characterized by a quantity of dry material between 10 and 200 g/l, a quantity of total sugar between 10 and 100 g/l, a weight ratio of sugar/protein, and a pH between 4 and 10.

Abstract: The present invention is a process for the extraction of an active principle for action against the consequences of oxidative stress, permitting countering cutaneous aging, characterized in that it comprises the following steps: reduction to fine powder of dried apple tegument, solubilization of this powder with at least 8% by volume of powder in an aqueous solution, conjoint enzymatic hydrolysis of the sugars and proteins, heating permitting total inactivation of the enzymes, and sterilizing filtration to retain the microorganisms, yeasts and molds as well as the total mesophilic flora. The invention also covers the associated compositions and a process for countering accelerated aging of the skin.

Abstract: The object of the invention covers an extraction process for an active principle having anti-radical and anti-glycolation action to counter cutaneous aging. The invention also covers the obtained active principle, the cosmetic compositions using this active principle, and a process for countering aging.