Cosmetic preparation of active substances with a...

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/99 (2006.01) A61K 8/365 (2006.01) A61K 8/55 (2006.01) A61K 8/64 (2006.01) A61K 8/66 (2006.01) A61K 8/73 (2006.01) A61K 8/97 (2006.01) A61K 8/98 (2006.01) A61Q 17/00 (2006.01)

Patent

CA 2386273

The inventive cosmetic preparation of active substances, as such as well as in combination with other active substances, protects the skin against free radical aggression in a particularly effective manner. The preparation consists of a bark extract of quebracho blanco which contains at least 90 wt. % of proanthocyanidine oligomers, a silkworm extract which contains the peptide cecropine, amino acids and a vitamin mixture, a non-ionic, cationic or anionic hydro-gel, phopholipids, a yeast disintegration product and cyclodextrines. The inventive preparation can contain additional active substances such as plant extracts of acerola, sea weed, citrus, bitter orange, cherry, papaya, tea, coffee beans, skin tree and angelica. The preparations have synergistically increased radical protection factors of up to 10,000. Cosmetic compositions containing said preparations have radical protection factors of between 40 and 400 according to the portion of the preparation.

L'invention concerne une préparation cosmétique à base de principes actifs qui protègent, en particulier de façon efficace, contre les agressions de radicaux libres, aussi bien seuls qu'en combinaison avec d'autres principes actifs. Cette préparation est constituée d'un extrait d'écorce de quebracho blanc qui contient au moins 90 % en poids d'oligomères de proanthocyanidine, d'un extrait de vers à soie qui contient le peptide cécropine, des aminoacides et un mélange de vitamines d'un hydrogel non ionique cationique ou anionique, de phospholipides, d'un produit de décomposition de levure et de cyclodextrines. Cette préparation peut également contenir d'autres principes actifs tels que des extraits végétaux d'acérolox, d'algues, d'agrumes, de papayes, de thé, de grains de café, de <i>Mimosa tenuiflora</i> et d'<i>Angelica laurentiena</i>. Une telle préparation présente un facteur de protection anti-radicaux libres synergiquement élevé, pouvant aller jusqu'à 10000, et des compositions cosmétiques contenant une telle préparation présentent un facteur de protection anti-radicaux libre compris entre 40 et 400, selon la teneur en ladite préparation.

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