Phenyl ketone derivatives as self-tanning agents
AssigneeMerck Patent GmbH
InventorChristophe CAROLA
Life of this patent
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Abstract
The present invention relates to the use of phenyl ketone derivatives of the formula I for use as self-tanning substance or for increasing melanin synthesis, improving melanin transport and/or improving the distribution of melanin in suprabasal layers, and to preparations comprising these phenyl ketone derivatives.
Claims20
A method of self-tanning comprising producing a self-tanning effect by applying to the skin of a host at least one compound of the formula I
- in which
- R1 to R5 stand, independently of one another, for H, OH, NH2, R7, OR7 or O(C═O)R7, and
- R6 and R7 stand, independently of one another, for
- straight-chain or branched C1- to C30-alkyl,
- straight-chain or branched C2- to C30-alkenyl,
- or a cycloalkyl or cycloalkenyl group having 5 to 8 C atoms, where the cycloalkenyl group is not an aromatic group,
- as self-tanning substance.
A method for increasing melanin synthesis, improving melanin transport and/or improving the distribution of melanin in suprabasal layers, comprising administering to a host in need thereof an effective amount of at least one compound of the formula I
- in which
- R1 to R5 stand, independently of one another, for H, OH, NH2, R7, OR7 or O(C═O)R7, and
- R6 and R7 stand, independently of one another, for
- straight-chain or branched C1- to C30-alkyl,
- straight-chain or branched C2- to C30-alkenyl,
- or a cycloalkyl or cycloalkenyl group having 5 to 8 C atoms, where the cycloalkenyl group is not an aromatic group,
- for increasing melanin synthesis, improving melanin transport and/or improving the distribution of melanin in suprabasal layers.
A composition comprising at least one compound of the formula I
- in which
- R1 to R5 stand, independently of one another, for H, OH, NH2, R7, OR7 or O(C═O)R7, and
- R6 and R7 stand, independently of one another, for
- straight-chain or branched C1- to C30-alkyl,
- straight-chain or branched C2- to C30-alkenyl,
- or a cycloalkyl or cycloalkenyl group having 5 to 8 C atoms, where the cycloalkenyl group is not an aromatic group, and at least one further self-tanning substance, at least one UV filter, or a topical carrier.
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A method of self-tanning comprising producing a self-tanning effect by applying to the skin of a host at least one compound of the formula I
- in which
- R1 to R5 stand, independently of one another, for R7, OR7 or O(C═O)R7, and
- R6 and R7 stand, independently of one another, for
- straight-chain or branched C2- to C30-alkenyl,
- or a cycloalkyl or cycloalkenyl group having 5 to 8 C atoms, where the cycloalkenyl group is not an aromatic group,
- as self-tanning substance.
Dependencies are inferred from the claim text.