Abstract: Disclosed are a method for preparing a hydroalcoholic extract obtained from a biomass of the shoots of a plant from the family of Plumbaginaceae, a butanol extract of Armenia maritima, a method for the preparation thereof, the use thereof, and compositions containing same.

Abstract: Disclosed is a method for obtaining a unialgal biomass of cells of small multicellular macroalgae, including: preparing a unialgal sample of cells of multicellular macroalgae from a sample of microalgae taken from the natural environment; culturing the unialgal sample of cells of multicellular macroalgae obtained in step in sea water to which at least one nitrogen source is added, in order to obtain an aqueous suspension of the unialgal biomass of cells of small multicellular macroalgae; a step of harvesting the unialgal biomass of cells of small multicellular macroalgae from the aqueous suspension obtained at the end of step; and a step of producing a powder of the unialgal biomass of cells of small multicellular macroalgae obtained in step. Also disclosed is glycolic extract of the aforementioned biomass, to a method for producing the extract, to the use thereof in cosmetics and pharmaceuticals, and to compositions containing same.

Abstract: Disclosed is a lipophilic extract of brown algae gametophytes obtained by the method including the following consecutive steps: —a Step A) for preparing a hydro-alcoholic suspension of gametophyte cells by mixing an aqueous suspension of brown algae gametophyte cells with at least one aliphatic alcohol including 1 to 4 carbon atoms; —a Step B) for mixing the hydro-alcoholic suspension of algae gametophyte cells, obtained in Step A), with at least one triglyceride from fatty acids that include 8 to 22 carbon atoms; —a Step C) for adding water to the multiphase mixture obtained in Step B); and —a Step D) for isolating the lipophilic extract of brown algae gametophytes from the mixture obtained in Step C). Also disclosed are the cosmetic and pharmaceutical use of the extract.

Abstract: Disclosed is a lipophilic extract of brown algae gametophytes obtained by the method including the following consecutive steps: —a Step A) for preparing a hydro-alcoholic suspension of gametophyte cells by mixing an aqueous suspension of brown algae gametophyte cells with at least one aliphatic alcohol including 1 to 4 carbon atoms; —a Step B) for mixing the hydro-alcoholic suspension of algae gametophyte cells, obtained in Step A), with at least one triglyceride from fatty acids that include 8 to 22 carbon atoms; —a Step C) for adding water to the multiphase mixture obtained in Step B); and —a Step D) for isolating the lipophilic extract of brown algae gametophytes from the mixture obtained in Step C). Also disclosed are the cosmetic and pharmaceutical use of the extract.

Abstract: The invention relates to the use of at least one lyophilisate of dedifferentiated plant cells in a cosmetic or pharmaceutical composition for skin depigmentation and/or lightening purposes along with a protective regenerative effect. In addition, the invention relates to a topically-applied cosmetic or pharmaceutical composition comprising one such lyophilisate.

Abstract: This invention is related to a freeze-dried product of cells of brown algae, the process for obtaining thereof, a cosmetic composition containing thereof, a food complement containing thereof, and the use thereof.

Abstract: The invention relates to the use of at least one lyophilisate of dedifferentiated plant cells in a cosmetic or pharmaceutical composition for skin depigmentation and/or lightening purposes along with a protective regenerative effect. In addition, the invention relates to a topically-applied cosmetic or pharmaceutical composition comprising one such lyophilisate.