Sunscreen compositions comprising lipophilic UV-screening agents and hydroxyalkylurea compounds
AssigneeL'oreal
InventorDidier Candau
Life of this patent
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Abstract
Cosmetic, notably anti-sun/sunscreen compositions having increased sun protection effectiveness and improved distribution over keratin materials, e.g., human skin, contain at least one fatty phase and at least one system for screening out UV radiation, and also contain: (a) at least one lipophilic UV-screening agent, and (b) at least one hydroxyalkylurea compound of formula (I): in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate or isomer thereof, formulated into (c) a topically applicable, cosmetically acceptable carrier therefor.
Claims18
A topically applicable cosmetic composition comprising at least one fatty phase and at least one system for screening out UV radiation, and further comprising:
- (a) at least one lipophilic UV-screening agent, and
- (b) at least one hydroxyalkylurea compound of formula (I):
- in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate, or isomer thereof, formulated into (c) a topically applicable, cosmetically acceptable carrier therefore.
A regime or regimen for photoprotecting a keratin material against the damaging effects of UV radiation, comprising topically applying thereon a cosmetic composition comprising at least one system for screening out UV radiation, and further comprising:
- (a) at least one lipophilic UV-screening agent, and
- (b) at least one hydroxyalkylurea compound of formula (I):
- in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate or isomer thereof, formulated into a topically applicable, cosmetically acceptable carrier therefor.
Dependencies are inferred from the claim text.