Bioactive composition for cosmetic applications
AssigneeEvonik Goldschmidt GmbH
InventorsHans Henning Wenk, Mike Farwick, Stefan Bergfried, Ursula MacZkiewitz
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Abstract
The invention relates to a process for the preparation of a plant extract from Curcuma plants, characterized by the process steps process step A) liquid extraction of Curcuma rhizomes, process step B) optionally, separation of a curcuminoid-containing solid obtained by precipitation from the extraction mixture obtained in process step A), process step C) removal of solvents present from the extraction mixture obtained in process step A) or B) to obtain a concentrate and process step D) distillation of the concentrate at a pressure of less than 1 bar to give the extract as distillate.
Claims12
A method for even skin coloration or for producing an even appearance of the skin surface, comprising applying an extract having a Gardner color number of less than 6 to skin, wherein said extract is prepared by:
- providing a liquid extraction mixture of Curcuma rhizomes;
- removing solvent present in the liquid extraction mixture to obtain a concentrate;
- and
- distillating the concentrate at a pressure of less than 1 bar to form said extract as a distillate.
Dependencies are inferred from the claim text.