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Cosmetic preparation containing vitamin a

  • US 20040096419A1
  • Filed: 10/06/2003
  • Published: 05/20/2004
  • Est. Priority Date: 04/04/2001
  • Status: Abandoned Application
First Claim
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1. Cosmetic preparation containing vitamin A which comprises a) 0.001 to 1.0 percent by weight of a retinyl derivative, calculated with reference to the weight of the cosmetic preparation and selected from among retinyl palmitate, retinyl ascorbate and mixtures thereof;

  • and b) 0.01 to 10 percent by weight of a retinyl derivative, selected from among retinyl palmitate, retinyl ascorbate and mixtures thereof and encapsulated in phospholipid-containing liposomes with a particle size of the liposomes in the range of 150 to 800 nm, the content of retinyl derivatives being calculated with reference to the weight of the liposomes; and

    c) 0.01 to 5 percent by weight of micro-capsules with pure retinol the particle size of the capsules being in the range of 40 to 100 nm and which contain pure retinol in the range of 0.5 to 3 percent by weight, calculated with reference to the weight of the filled capsules; and

    d) 0.1 to 20 percent by weight, calculated with reference to the weight of the cosmetic preparation, of an extract, selected from among the aqueous fruit extracts cherry extract (Prunus cerasus), acerola extract (Malpighia punicifolia), pineapple extract, hydrolized bark extract of Quebracho blanco, silkworm extract and mixtures of these extracts, with the content of the extract of at least one retinol compound, selected from among retinol, retinyl palmitate, retinyl ascorbate and mixtures thereof, being in the range of 0.01 to 5 percent by weight, this figure being calculated with reference to the dry weight of the extract; and

    e) a rest, up to 100 percent by weight, of cosmetic auxiliaries, carrier substances and mixtures thereof.

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