Abstract: This invention relates to a cosmetic combination product comprising a first cosmetic composition comprising glucosamine or one of the salts thereof, a second cosmetic composition comprising hyaluronic acid, and possibly a third cosmetic composition comprising collagen, a cosmetic composition comprising glucosamine or one of the salts thereof, hyaluronic acid, and possibly collagen, the uses thereof, in particular for inducing the synthesis of hyaluronic acid and as such combat aging of the skin affecting the keratinocytes and/or the fibroblasts and the dermis, as well as a cosmetic method that implements these combination products and compositions.

Abstract: The invention relates to the oral cosmetic use of a combination of active agents comprising at least taurine, a derivative thereof and/or an acceptable salt thereof and at least one grape extract, as cosmetic active agents for improving the quality of the nails. More particularly, the present invention relates to the oral cosmetic use of such a combination for improving the solidity of the nails and for reducing and/or preventing their splitting.

Abstract: This invention relates to the cosmetic use by oral route of a combination of lycopene and manganese to prevent a decrease of and/or reinforce the barrier function of the skin.

Abstract: The object of the present invention is the cosmetic use via an oral route of a combination of actives comprising at least one polyunsaturated fatty acid and vitamin D, for improving the hair quality. This combination of actives may further comprise, as an additional active, vitamin E, vitamin C, a carotenoid, zinc gluconate or combinations thereof. The combination of actives is preferably applied in a cosmetic composition intended for oral administration, such as a food supplement.

Abstract: The invention relates to the oral cosmetic use of a combination of active agents comprising at least taurine, a derivative thereof and/or an acceptable salt thereof and at least one grape extract, as cosmetic active agents for improving the quality of the nails. More particularly, the present invention relates to the oral cosmetic use of such a combination for improving the solidity of the nails and for reducing and/or preventing their splitting.

Abstract: The invention relates to the oral cosmetic use of a combination of active agents comprising at least taurine, a derivative thereof and/or an acceptable salt thereof and at least one grape extract, as cosmetic active agents for improving the quality of the nails. More particularly, the present invention relates to the oral cosmetic use of such a combination for improving the solidity of the nails and for reducing and/or preventing their splitting.

Abstract: The invention relates to the oral cosmetic use of a combination of active agents comprising at least taurine, a derivative thereof and/or an acceptable salt thereof, at least vitamin B8 or a derivative thereof and at least a grape extract, for increasing and/or maintaining the thickness of hair fibres and/or limiting the thinning of hair fibres. The invention also relates to a cosmetic process for this purpose.

Abstract: This invention relates to the cosmetic use by oral route of a combination of lycopene and manganese to prevent a decrease of and/or reinforce the barrier function of the skin.

Abstract: The invention relates to the cosmetic use, by oral administration, of a combination of active agents including at least petroselinic acid and at least one active agent selected from among taurine, arginine, cysteine, zinc, a salt thereof, and lycopene, for improving the quality of nails, specifically the microvascularization of the nails, in particular in pre-hypertensive individuals.

Abstract: The invention relates to the oral cosmetic use of a combination of active agents comprising at least one polyunsaturated fatty acid and at least one carotenoid, for improving the quality of the nails. More particularly, the present invention relates to the oral cosmetic use of such a combination for improving the solidity of the nails and for reducing and/or preventing their splitting.

Abstract: The oral cosmetic use of a combination of active agents, including at least one polyunsaturated fatty acid and one carotenoid, for improving hair quality and more particularly hair quality at the level of a zone having grown before said use of a combination of said active agents. This combination of active agents may also include, by way of additional active agent, vitamin E, vitamin C or combinations thereof. The combination of active agents is preferably used in a cosmetic composition intended for oral administration, such as a food supplement.

Abstract: The invention relates to the cosmetic use, by oral administration, of a combination of active agents including petroselinic acid and zinc, in particular the salts of Zn (II) wherein said salts are preferably complexed by one or more (poly)hydroxyacids such as zinc gluconate, for improving hair quality and for preventing and controlling the microinflammation of hair follicles, in particular for controlling hair aging in men over the age of 30 or in women.