Abstract: The present invention relates to the use, in a cosmetic composition, of a peppermint extract, as agent intended to increase renewal of the cells of the epidermis associated with a deficiency in the expression of NOTCH proteins in keratinocyte progenitor cells, in particular for mature skin and/or skin exhibiting signs of dryness and of loss of firmness. The invention also relates to a cosmetic care method, for maintaining or regulating renewal of the cells of the epidermis associated with a deficiency in the expression of NOTCH proteins in keratinocyte progenitor cells, intended for mature and/or dry skin.

Abstract: The present invention relates to the use, in a cosmetic composition, of a peppermint extract, as agent intended to increase renewal of the cells of the epidermis associated with a deficiency in the expression of NOTCH proteins in keratinocyte progenitor cells, in particular for mature skin and/or skin exhibiting signs of dryness and of loss of firmness. The invention also relates to a cosmetic care method, for maintaining or regulating renewal of the cells of the epidermis associated with a deficiency in the expression of NOTCH proteins in keratinocyte progenitor cells, intended for mature and/or dry skin.

Abstract: The invention relates to the use in a cosmetic composition of an extract of the alga Phaeodactylum tricornutum, as a depigmenting active agent intended in particular for attenuating or eliminating skin pigmentation marks or for lightening the complexion or bodily hairs or head hair. The extract is preferably a lipid extract. The invention also relates to a cosmetic care method for attenuating or eliminating skin pigmentation marks or for lightening the complexion or bodily hairs or head hair, characterized in that it comprises the application, to at least one concerned area of the skin, of a cosmetic composition containing this extract.

Abstract: A dermatological or cosmetological composition for an external topical administration, included together with pharmaceutically and/or cosmetologically acceptable excipients: at least one UVA-stabilizing and/or UVB-stabilizing screening agent, at least one compound capable of activating the endogenous synthesis of Heat Shock Protein (HSP) 32 or a functional peptide fragment of such a protein, and forskolin or any extract containing it.

Abstract: The invention relates to the use of L-2-thiohistidine, or a cosmetically acceptable salt or ester of its acid group, as a depigmenting agent in a cosmetic composition or for the preparation of a cosmetic composition. It further relates to a method of cosmetic care for toning down or eliminating pigment spots on the skin and/or lightening the complexion by the application of this cosmetic composition. The invention provides a highly depigmenting composition.

Abstract: The invention relates to a cosmetic care method for preventing or retarding the appearance of the signs of ageing of the skin or for attenuating the effects thereof. This method is characterized in that it comprises the delivery, to at least part of the skin of the face or body, of an effective amount of at least one cosmetically acceptable active agent that activates or stimulates the activity of cutaneous mitochondrial aconitase. The invention makes it possible to achieve an anti-ageing effect.

Abstract: The invention relates to the use of a plant extract as a cosmetic agent. This extract is obtained from a plant belonging to the genus Citrus, or from hybrids derived from the crossing of plant species, at least one of which belongs to the genus Citrus, as a cosmetic active agent. The invention makes it possible to prevent or retard the appearance of the signs of ageing of the skin or to attenuate the effects thereof and/or to improve or restore the radiance of the skin complexion.

Abstract: The invention relates to the use in a cosmetic composition of an extract of the alga Phaeodactylum tricornutum, as a depigmenting active agent intended in particular for attenuating or eliminating skin pigmentation marks or for lightening the complexion or bodily hairs or head hair. The extract is preferably a lipid extract. The invention also relates to a cosmetic care method for attenuating or eliminating skin pigmentation marks or for lightening the complexion or bodily hairs or head hair, characterized in that it comprises the application, to at least one concerned area of the skin, of a cosmetic composition containing this extract.

Abstract: The invention relates to the use, in a cosmetic composition intended for topical application to the skin, of lipochroman-6 as an active intended to enhance and/or restore the radiance of the complexion of the skin, especially the skin of the face. The invention also relates to a method of cosmetic care of the skin, especially the skin of the face, intended to enhance and/or restore the radiance of the complexion, which comprises the application to the part of the skin in question of an effective amount of this cosmetic composition.

Abstract: The invention relates to the use of L-2-thiohistidine, or a cosmetically acceptable salt or ester of its acid group, as a depigmenting agent in a cosmetic composition or for the preparation of a cosmetic composition. It further relates to a method of cosmetic care for toning down or eliminating pigment spots on the skin and/or lightening the complexion by the application of this cosmetic composition. The invention provides a highly depigmenting composition.

Abstract: The invention relates to the use of an extract of the alga Phaeodactylum, particularly the alga Phaeodactylum tricornutum, as a cosmetic agent promoting the proteasome activity of skin cells, particularly keratinocytes, fibroblasts or melanocytes (preferably human). The invention makes it possible to manufacture a cosmetic composition for protecting the skin from the adverse effects of UV exposure or for preventing and/or delaying skin ageing effects.

Abstract: A dermatological or cosmetological composition for an external topical administration, included together with pharmaceutically and/or cosmetologically acceptable excipients: at least one UVA-stabilizing and/or UVB-stabilizing screening agent, at least one compound capable of activating the endogenous synthesis of Heat Shock Protein (HSP) 32 or a functional peptide fragment of such a protein, and forskolin or any extract containing it.

Abstract: The invention relates to the use of an extract of the alga Phaeodactylum, particularly the alga Phaeodactylum tricomutum, as a cosmetic agent promoting the proteasome activity of skin cells, particularly keratinocytes, fibroblasts or melanocytes (preferably human).