摘要:
The invention concerns a composition for topical application for extemporaneous preparation, comprising ascorbic acid and a suitable support, the ascorbic acid being obtained by bringing at least one ascorbic acid precursor with the exception of its esters into contact with at least one enzyme that is capable of converting said precursor. It also concerns the use of one or more enzymes selected from L-galactono-1,4-lactone dehydrogenase, L-galactose dehydrogenase, L-sorbosone dehydrogenase, L-gulono-1,4-lactone oxidase and mixtures thereof, or of an extract comprising said enzyme, for the preparation of ascorbic acid for topical use, and a cosmetic method for treating the skin consisting of applying to the skin, either simultaneously or successively, at least one enzyme that can convert an ascorbic acid precursor into ascorbic acid, and at least one ascorbic acid precursor with the exception of its esters.
摘要:
The invention concerns novel compounds of the N-acylamino-amide family, compositions, in particular cosmetic or pharmaceutical, containing them, and their use for treating body or face skin ageing, whether chronobiologic or light-induced, and in particular skin ageing caused by decrease of skin elasticity and/or by collagen degradation in the structure of tissues.
摘要:
Cosmetic or pharmaceutical compositions comprising compounds of formula (I) and the corresponding salts thereof: in which: R1 is a radical chosen from —COOR′, —CONR′R″, —CH2OR′, —COR′, —CH2R′, —SO2OR′, —PO3R′R″ and —NHR′, wherein R′ and R,″ which may be identical or different, are chosen from a hydrogen atom and saturated and unsaturated, linear, branched and cyclic hydrocarbon radicals comprising from 1 to 18 carbon atoms, which are optionally substituted by from 1 to 5 identical or different entities chosen from —OR′″, —OCOR′″, —SR′″, —SCOR′″, NR′″R″″, —NHCOR′″, halogen atoms, —CN, —COOR′″ and —COR′″, wherein R′″ and R″″, which may be identical or different, are chosen from a hydrogen atom, aryl radicals and saturated and unsaturated, linear and branched hydrocarbon radicals comprising from 1 to 4 carbon atoms; R2 is a radical chosen from linear, branched and cyclic hydrocarbon radicals comprising at least one unsaturation and comprising from 2 to 18 carbon atoms, which are optionally substituted by from 1 to 5 identical or different entities chosen from —OR′″, —OCOR′″, —SR′″, —SCOR′″, NR′″R″″, —NHCOR′″, halogen atoms, —CN, —COOR′″ and —COR′″, wherein R′″ and R″″, which may be identical or different, are chosen from a hydrogen atom, aryl radicals and saturated and unsaturated, linear and branched hydrocarbon radicals comprising from 1 to 4 carbon atoms as well as the use of these compounds, for example, to promote skin desquamation, to stimulate epidermal renewal and/or to combat the signs of skin ageing.
摘要:
The present invention relates to a cosmetic process for treating human body odor, in particular underarm odor, which consists in applying to human keratin materials a composition containing, in a cosmetically acceptable medium, at least one 4-(3-ethoxy-4-hydroxyphenyl)alkyl ketone or 2-ethoxy-4-hydroxyalkylphenol compound of formula (I) below: in which: R represents a hydrogen atom, or a linear or branched, saturated or unsaturated (alkyl or alkenyl), C1-C18 hydrocarbon-based radical; R′ represents a linear or branched, saturated or unsaturated (alkyl or alkenyl), C1-C18 hydrocarbon-based radical, optionally substituted with a hydroxyl group; C—X represents C═O or CH—OH. The invention also relates to the cosmetic use of at least one compound of formula (I), as a deodorant active agent.
摘要:
The invention relates to the use of a compound of formula (I), or salts thereof, as a preserving agent, in particular in a cosmetic, dermatological or pharmaceutical composition: in which R1 and R2 represent H, methyl, ethyl, phenyl or benzyl. The invention also relates to a method of preserving a cosmetic, dermatological or pharmaceutical composition, consisting in incorporating said compound of formula (I) therein; and also to the compositions thus obtained.
摘要:
The invention relates to a cosmetic or dermatological composition comprising a hyaluronic acid derivative which comprises ureidopyrimidone units, to the said derivatives and to a cosmetic treatment method using them.
摘要:
The present invention relates to the use, as an antidandruff agent, of a compound of formula: in which: R1 represents a hydrogen atom or a hydrocarbon-based radical; R′ represents a C1-C18 hydrocarbon-based radical, optionally substituted with a hydroxyl group; C—X represents C═O or CH—OH.
摘要:
Use of gingerone or derivatives thereof for reducing or delaying the signs of skin ageing. The present invention relates to the cosmetic use of at least one compound of general formula (I): in which:—R1 represents a methyl or ethyl radical;—R2 represents a hydrogen atom or a methyl or ethyl radical;—R3 represents a linear C1-C6 or branched C3-C6 alkyl radical, or a linear C2-C6 or branched C3-C6 alkenyl radical; and—X represents =O or —OH, as an agent for reducing and/or delaying the signs of skin ageing.
摘要:
The invention relates to a cosmetic or dermatological composition comprising a hyaluronic acid derivative which comprises ureidopyrimidone units, to the said derivatives and to a cosmetic treatment method using them.