Oral composition for reinforcing skin tolerance following topical administration of a retinoid compound
The cosmetic or non-therapeutic use of an oral composition for reinforcing an individual's skin tolerance to topical administration of a retinoid compound, the oral composition having at least one carotenoid, at least one phytoestrogen and vitamin C. A cosmetic or non-therapeutic process for increasing an individual's skin tolerance to topical administration of a retinoid compound, having at least one step of oral administration to the individual of an oral composition having at least one carotenoid, at least one phytoestrogen and vitamin C. A set for simultaneous, separate or sequential administration, the set having a first cosmetic composition for topical application having, in a physiologically acceptable medium, at least one effective amount of a retinoid compound, and a second composition for oral administration, for reinforcing the skin tolerance of the individual treated with the first composition, the second composition having at least one carotenoid, at least one phytoestrogen and vitamin C.
1. A cosmetic or non-therapeutic method for reinforcing an individual's skin tolerance to topical administration of a retinoid compound, comprising at least:
a step of topical administration of a retinoid compound to the individual for combating chronobiological aging or photoinduced aging or skin aging associated with menopause, and
a step of oral administration of a composition comprising at least one carotenoid, at least one phytoestrogen and vitamin C to the individual for increasing the individual's skin tolerance to the topical administration of the retinoid compound,
wherein the composition is suitable for the daily administration of a combination of compounds comprising (i) from 1 to 25 mg of carotenoid, (ii) from 10 to 300 mg of phytoestrogen, and (iii) from 10 to 1000 mg of vitamin C, and
said individual being a menopausal woman.
2. The method as claimed in claim 1 , wherein the retinoid compound is chosen from retinoic acid, tretinoin, isotretinoin, retinol, retinaldehyde, adapalene, tazarotene and alitretinoin.
3. The method as claimed in claim 1 , for improving skin tolerance to skin ailments which may be caused by the topical administration of at least one retinoid compound.
4. The method as claimed in claim 3 , wherein the skin ailments manifest themselves through redness, pruritus, dryness or desquamation of the skin, hot, heating or burning sensations and/or tingling sensations, itching sensations or even feelings of tautness.
5. The method as claimed in claim 1 , wherein said at least one carotenoid is lycopene.
6. The method as claimed in claim 1 , wherein said at least one phytoestrogen is an isoflavonoid.
7. The method as claimed in claim 1 , wherein the isoflavonoid is chosen from genistine, daidzine, genistein, daidzein, glycitine, equol, formononetin, cuneatin, isoprunetin and prunetin, cajanine, orobol, pratensein, santal, junipegenin A, glycitein, afrormosin, retusin, tectorigenin, irisolidone, jamaicine, and also analogs and/or metabolites thereof- or a mixture thereof.
8. The method as claimed in claim 6 , wherein the isoflavonoid is an isoflavone.
9. The method as claimed in claim 1 , wherein the topical administration and the oral administration are carried out together.
10. The method as claimed in claim 1 , wherein the topical administration and the oral administration are carried out simultaneously, intermittently or sequentially.
11. The method as claimed in claim 1 , wherein it comprises (i) a first period of time comprising the administration of the oral composition as defined in claim 1 , in the absence of topical administration of the retinoid compound, said first period of time being followed (ii) by a second period of time comprising the simultaneous or intermittent administration of said oral composition and of the retinoid compound topically.
12. The method as claimed in claim 1 , wherein it comprises one and the same period of time comprising the simultaneous or intermittent administration of the oral composition as defined in claim 1 and of the retinoid compound topically.
13. The method as claimed in claim 8 , wherein the isoflavonoid is in the form of an extract of soybean isoflavones.
14. The method as claimed in claim 6 , wherein the isoflavonoid is selected from the group consisting of isoflavones, isoflavanones, rotenoids, pterocarpans, isoflavanes, isoflavan-3-enes, 3-arylcoumarins, 3-aryl-4-hydroxycoumarins, coumestanes, coumaronochromones, α-methyldeoxybenzoins and 2-arylbenzofurans.