VACCINIUM MACROCARPON EXTRACT AND ANTI-AGEING COSMETIC EFFECTS THEREOF
The present invention relates to a Vaccinium macrocarpon extract comprising at least 80% peptides by weight of dry matter of the extract, in particular to a cosmetic active substance comprising same, to a cosmetic composition comprising said active substance and to anti-aging cosmetic uses.
1 . A cosmetic active substance comprising at least one extract of Vaccinium macrocarpon , characterized in that said extract comprises at least 80% of peptides by weight of dry matter of the extract.
2 . The cosmetic active substance according to claim 1 , characterized in that said extract is obtained from the fruit of Vaccinium macrocarpon.
3 . The cosmetic active substance according to claim 1 , characterized in that said extract is obtained from cakes of Vaccinium macrocarpon.
4 . The cosmetic active substance according to claim 1 , characterized in that the extract is a hydrolysate of Vaccinium macrocarpon.
5 . The cosmetic active substance according to claim 4 , characterized in that the hydrolysate is an enzymatic hydrolysate.
6 . The cosmetic active substance according to claim 4 , characterized in that the hydrolysate comprises at least 80% of peptides, by weight of dry matter of the extract, said peptides having a size less than or equal to 2,000 Da.
7 . The cosmetic active substance according to claim 6 , characterized in that the size is between 243 and 2,000 Da.
8 . The cosmetic active substance according to claim 1 , characterized in that the peptides present in the hydrolysate comprise on average between 4 and 6 amino acids.
9 . The cosmetic active substance according to claim 1 , characterized in that said extract has a content of basic amino acid-rich cationic peptides greater than 20%.
10 . The cosmetic active substance according to claim 1 , characterized in that said extract is capable of being obtained by a method comprising the following steps:
solubilization of at least 100 g/L of Vaccinium macrocarpon cakes in water,
enzymatic hydrolysis,
purification of the peptide fraction.
11 . The cosmetic active substance according to claim 1 , characterized in that said extract is capable of being obtained by an extraction method comprising two enzymatic hydrolyses of cakes of Vaccinium macrocarpon.
12 . A cosmetic composition for topical application comprising at least one active substance according to claim 1 and a physiologically acceptable medium.
13 . The cosmetic composition according to claim 12 , wherein the active substance represents at least 0.1% by weight of the total weight of the composition.
14 . A cosmetic use of an active substance according to claim or a cosmetic composition comprising the active substance, for an anti-aging effect.
15 . The cosmetic use according to claim 14 for an anti-wrinkle effect.
16 . The cosmetic use according to claim 14 for improving the complexion radiance.
17 . The cosmetic use according to claim 14 for improving the quality of the dermal-epidermal junction.
18 . The cosmetic use according to claim 14 for improving the skin homeostasis.