Abstract: Novel cosmetic and dermatological uses of an extract of Cistus monspeliensis The invention relates to the non-therapeutic cosmetic use of an extract of Cistus monspeliensis for increasing and/or maintaining tissue homeostasis in the skin and/or the mucous membranes and/or the skin appendages, by increasing and/or maintaining the barrier function and/or cell differentiation in the skin and/or the mucous membranes and/or the skin appendages. Another subject relates to a non-therapeutic cosmetic care process notably comprising the topical application of the extract of C. monspeliensis or of a cosmetic composition comprising same. Yet another subject relates to the extract of C. monspeliensis, for its use for preventing and/or treating diseases induced by a decrease in the gene and/or protein expression of ECM1, advantageously lichen sclerosus or lipoid proteinosis, and/or for preventing and/or treating scars.

Abstract: The present invention relates to the cosmetic use of a Bixa orellana extract for preventing and/or reducing sebum secretion and/or for preventing and/or reducing the unaesthetic and/or unpleasant and/or uncomfortable manifestations of sebum secretion. It also relates to a cosmetic care method, characterized in that it comprises the topical application to at least one area of skin, advantageously of the scalp, of a Bixa orellana extract for preventing and/or reducing sebum secretion and/or for preventing and/or reducing the unaesthetic and/or unpleasant and/or uncomfortable manifestations of sebum secretion. Finally, it relates to a Bixa orellana extract for use in the treatment and/or prevention of a pathological condition associated with sebum hyperproduction chosen from pathological hyperseborrhoea and seborrhoeic eczema and/or any combination thereof.

Abstract: The present invention relates to the topical cosmetic use of a Polygonum bistorta extract for stimulating the expression of perlecan and/or dystroglycan, in particular in the extracellular matrix and/or in the epithelial basement membrane, especially the dermoepidermal junction. It also relates to a cosmetic care method comprising the application, to at least one concerned area of healthy skin and/or healthy mucous membrane and/or healthy scalp, of a Polygonum bistorta extract or of a cosmetic composition comprising such an extract for stimulating the expression of perlecan and of dystroglycan, in particular in the extracellular matrix and/or in the epithelial basement membrane, especially the dermoepidermal junction.

Abstract: The invention concerns active substances modulating the expression of the receptors of the products of the POMC gene (MC-IR, MC-2R, and the ? opioid receptor), and possibly modulating the expression of POMC in cutaneous cells, notably to modulate the proliferation and differentiation of epidermal cells in order to re-epithelial, maintain innervation, irrigate the skin, or to fight against aging, or to modulate pigmentation independently or not of cutaneous aging. The invention also concerns a method of screening such active substances.

Abstract: The invention concerns active substances modulating the expression of the receptors of the products of the POMC gene (MC-IR, MC-2R, and the ? opioid receptor), and possibly modulating the expression of POMC in cutaneous cells, notably to modulate the proliferation and differentiation of epidermal cells in order to re-epithelial, maintain innervation, irrigate the skin, or restore normal pigmentation, or to fight against aging, or to modulate pigmentation independently or not of cutaneous aging. The invention also concerns a method of screening such active substances.