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Patent Picks—Melatonin Antioxidants, Flax for Barrier Function, Quinoa and More for Skin Care, Moisturization
By: Katie Anderson
Posted: September 4, 2012
page 4 of 4
Cosmetic preparation comprising hyaluronic acid
US Patent 8252348
Publication date: Aug. 28, 2012
Assignee: Beiersdorf AG
The present invention relates to cosmetic preparations with an active substance combination of hyaluronic acid and saponins. Specifically, the preparation comprises, based on the total weight of the preparation: a) from 0.001% to 3% w/w of hyaluronic acid; and b) i) from 0.01% to 4%w/w of one or more saponins; or ii) from 0.01% to 8% w/w of a leguminose extract or a soy extract that, in turn, comprises, based on the total weight of the extract, from 0.01% to 99% by weight of one or more saponins. In one aspect of the preparation, component b) may comprise one or more saponins from glycosides of triterpene sapogenins and steroid sapogenins. In another aspect, the preparation may be present as an o/w emulsion. In yet another aspect, the preparation may comprise a lipid phase with a total polarity of less than 30 mN/m. In a still further aspect of the preparation, the weight ratio of hyaluronic acid to the one or more saponins may be from 1:1 to 1:10.
Composition containing a quinoa grain extract for dematological use
European Patent EP2124982
Publication date: Aug. 22, 2012
Assignee: Laboratoires Expanscience
This invention relates to a cosmetic, dermatological or nutraceutical composition comprising a suitable carrier and an extract of quinoa. The peptide and oside extract of quinoa grains are obtained by: a) starting with quinoa grains, extraction of a raw oil and of a cake and recovery of said cake; b) washing said cake with water or with a water/alcohol mixture in order to only retain the protein portion, and then c) solubilizing the proteins; d) concentrating the proteins and then hydrolyzing said proteins into peptides; e) purifying and recovering the peptide and oside extract, and, if necessary, a suitable excipient. These are useful to promote healing, preventing and/or treating acne, regulating pigmentation disorders, or preventing and/or treating hirsutism or seborrhoeic dermatitis.
The disclosed composition, in one embodiment, is characterized in that the peptide and oside extract consist of 25% to 90% w/w of peptides and from 10% to 50% w/w sugars, the percentages being expressed relatively to the total weight of said peptide and oside extract. Cosmetic applications include for treatment of hair on the head or body, nails, alopecia, dandruff or normal, dry, greasy, mixed, dehydrated, aged or sensitive skin.
Much Needed Information on Formulating for Antioxidant Claims
Antioxidants in the Skin by Roger McMullen is the first book to offer a comprehensive account of antioxidants in personal care and addresses the cellular level of human skin. Researchers are often challenged with the difficult task of choosing a proper antioxidant assay from the innumerable amount described in literature. This book contains a full description of how these tests are carried out and the advantages/disadvantages associated with each assay.
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