COMPOSITION HAVING A SIRTUIN ACTIVATOR
The present invention concerns a composition having at least one sirtuin activator and a carrier system for the at least one sirtuin activator, wherein the carrier system includes lipid vesicles with one or more lipid membranes. To provide an improved action of sirtuin activators in living skin cells, it is proposed in accordance with the invention that the at least one sirtuin activator is contained in the lipid vesicles and the lipid vesicles have a positive surface charge, wherein the positive surface charge is afforded by the lipid vesicles in the lipid membrane or membranes in addition to the lipids from which the vesicles are made up having positively charged molecules as charge generators, wherein said charge generators are selected from quaternary ammonium compound
1 . A composition having at least one sirtuin activator and a carrier system for the at least one sirtuin activator, wherein the carrier system includes lipid vesicles with one or more lipid membranes, wherein the at least one sirtuin activator is contained in the lipid vesicles and the lipid vesicles have a positive surface charge, wherein the positive surface charge is afforded by the lipid vesicles in the lipid membrane or membranes in addition to the lipids from which the vesicles are made up having positively charged molecules as charge generators, wherein said charge generators are selected from quaternary ammonium compounds.
2 . A composition as set forth in claim 1 wherein the charge generators are selected from alkyl trimonium salts of the formula
wherein
n is a number of between 18 and 28, and
X − is an inorganic or organic anion.
3 . A composition as set forth in claim 1 wherein the proportion of the at least one sirtuin activator in relation to the overall composition is between 0.0001 and 20% by weight.
4 . A composition as set forth in claim 1 wherein the at least one sirtuin activator is selected from the group comprising flavones, stilbenenes, flavonones, isoflavones, catechins, chalcones, tannins, anthocyanides and derivatives thereof.
5 . A composition as set forth in claim 1 wherein the composition includes at least two sirtuin activators, wherein the at least two sirtuin activators are selected from the group consisting of quercitin, piceatannol, resveratrol and isonicotinamide.
6 . A composition as set forth in claim 5 wherein the at least two sirtuin activators include resveratrol and isonicotinamide.
7 . A composition as set forth in claim 1 wherein the proportion of the charge generators with respect to the overall composition is between 0.01 and 10% by weight.
8 . A composition as set forth in claim 2 wherein X − is bromide, chloride, fluoride, iodide, saccharinate, tosylate or methosulfate.
9 . A composition as set forth in claim 1 wherein the zeta potential of the lipid vesicles is between 1 and 150 mV.
10 . A composition as set forth in claim 1 wherein the lipid vesicles have a particle size of between 10 and 1000 nm.
11 . An active substance composition including at least two sirtuin activators, wherein the at least two sirtuin activators include resveratrol and isonicotinamide.
12 . An active substance composition as set forth in claim 11 including a carrier system suitable for sirtuin activators and selected from neutral lipid vesicles and positively charged lipid vesicles.
13 . A composition as set forth in claim 1 , additionally including one or more further active substances.
14 . Use of a composition as set forth in claim 1 for the production of a formulation for the treatment of skin ageing and symptoms associated with skin ageing and for increasing the longevity of skin cells.
15 . Cosmetic and/or pharmaceutical formulation for topical application, including a composition as set forth in claim 1 .
16 . An active substance composition as set forth in claim 11 , wherein it additionally including one or more further active substances.
17 . Use of an active substance composition as set forth in claim 11 for the production of a formulation for the treatment of skin ageing and symptoms associated with skin ageing and for increasing the longevity of skin cells.
18 . Cosmetic and/or pharmaceutical formulation for topical application, including an active substance composition as set forth in claim 11 .