Abstract: The present invention is concerned with novel arylalkyl carboxylic acid derivatives, more specifically, with acylates of arylalkyl carboxylic acids with naturally occurring, non-toxic hydroxyl, sulfhydryl, amino or imino compounds, and to compositions containing them. The compositions are preferably cosmetic preparations.

Abstract: The present invention is concerned with novel arylalkyl carboxylic acid derivatives, more specifically, with acylates of arylalkyl carboxylic acids with naturally occurring, non-toxic hydroxyl, sulfhydryl, amino or imino compounds, and to compositions containing them. The compositions are preferably cosmetic preparations.

Abstract: The present invention is concerned with novel arylalkyl carboxylic acid derivatives, more specifically, with acylates of arylalkyl carboxylic acids with naturally occurring, non-toxic hydroxy, sulfhydryl, amino or imino compounds, and to compositions containing them. The compositions are preferably cosmetic preparations.

Abstract: The present invention is directed to compositions which contain a combination of at least one histone deacetylase inhibitor (HDAC inhibitor) and a retinoid. The composition is in particular a cosmetic preparation. It was found that the combination of an HDAC inhibitor and retinol or a derivative thereof is in particular useful for treating wrinkles but also for thickening the epidermis and for improving hair growth.

Abstract: The invention provides novel compounds of general formula I wherein R1, R2 and R3 are independently hydrogen, OR4, C1-C6 alkyl or C2-C6 alkenyl, R4 is hydrogen, C1-C6 alkyl or C2-C6 alkenyl, —N-(AA) represents the residue of an amino acid or of a peptide which is bonded over the N-terminus of the amino acid or the peptide and the peptide is composed of 2 to 6, that means 2, 3, 4, 5 or 6, amino acids, wherein the C-terminus of the amino acid or the peptide is optionally esterified with a C1-C16 hydrocarbon moiety and n is an integer of 1 to 5. The compounds are in particular useful for cosmetic applications.

Abstract: The present invention relates to a new use of opioid receptor antagonists. More particularly, the present invention relates to the use of opioid receptor antagonists in hair care, particularly for the prevention of the graying of hair and/or for restoration and/or maintenance of the natural hair color.

Abstract: The present invention relates to cosmetic or dermatological compositions comprising salicylic acid, optionally substituted salicylic acid and/or derivatives thereof and ascorbic acid and/or derivatives thereof in a cosmetically acceptable carrier. The salicylic acid, optionally substituted salicylic acid and/or derivatives thereof serve as skin penetration enhancer for the ascorbic acid and/or derivatives thereof into human skin. The compositions are especially useful as skin lightening agents, anti-acne agents or anti-ageing agents.

Abstract: The present invention is concerned with novel arylalkyl carboxylic acid derivatives, more specifically, with acylates of arylalkyl carboxylic acids with naturally occurring, non-toxic hydroxy, sulfhydryl, amino or imino compounds, and to compositions containing them. The compositions are preferably cosmetic preparations.

Abstract: The present invention relates to a new use of opioid receptor antagonists. More particularly, the present invention relates to the use of opioid receptor antagonists for the manufacture of topical compositions for suppression of melanin formation in the human skin; to topical, particularly cosmetic, compositions for suppression of melanin formation in the human skin comprising an opioid receptor antagonist; and to a method of lightening human skin and/or treatment of pigmentation disorders which comprises topically administering an effective amount of an opioid receptor antagonist to the appropriate skin area of a person in need of such treatment.

Abstract: The invention provides novel compounds of general formula I wherein R1, R2 and R3 are independently hydrogen, OR4, C1-C6 alkyl or C2-C6 alkenyl, R4 is hydrogen, C1-C6 alkyl or C2-C6 alkenyl, —N-(AA) represents the residue of an amino acid or of a peptide which is bonded over the N-terminus of the amino acid or the peptide and the peptide is composed of 2 to 6, that means 2, 3, 4, 5 or 6, amino acids, wherein the C-terminus of the amino acid or the peptide is optionally esterified with a C1-C16 hydrocarbon moiety and n is an integer of 1 to 5. The compounds are in particular useful for cosmetic applications.

Abstract: The present invention is directed to compositions which contain a combination of at least one histone deacetylase inhibitor (HDAC inhibitor) and a retinoid. The composition is in particular a cosmetic preparation. It was found that the combination of an HDAC inhibitor and retinol or a derivative thereof is in particular useful for treating wrinkles but also for thickening the epidermis and for improving hair growth.

Abstract: The invention provides the use of retinoyl derivatives for the cosmetic treatment or prophylaxis of wrinkles, skin aging and/or for thickening the epidermis.

Abstract: The invention relates to the use of vitamin K1 as energizer in cosmetic formulations and to specific cosmetic formulations containing vitamin K1.