Skin care compositions

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/67 (2006.01) A61Q 1/02 (2006.01)

Patent

CA 2366034

The present invention relates to topical compositions for effecting immediate improvements in the appearance and feel of skin, in addition to providing chronic improvements in skin appearance. The compositions comprise: a) from 0.1 % to 10 % of an organic particulate material having a refractive index of from 1.3 to 1.7, the particulate material being dispersed in the composition and having a volume average particle size in the range of from about 10 to about 30 µm; b) from about 0.05 % to about 2.5 % by weight of a green, platelet-type interference pigment material having a TiO2 layer thickness of from about 120 nm to about 160 nm or a whole number multiple thereof; c) from about 0 % to about 3 % of an inorganic matting agent; and d) a dermatologically acceptable, topical carrier. Additional chronic improvements in skin conditions are effected by including a chronic active selected from Vitamin B3 compounds, retinoids, and mixtures thereof. Particularly preferred embodiments are oil in water emulsions for non-facial application.

Cette invention se rapporte à des compositions topiques permettant de réaliser des améliorations immédiates de l'aspect et du bien-être de la peau, en plus d'apporter des améliorations chroniques de l'aspect de la peau. Ces compositions comprennent: (a) 0,1 à 10 % d'une substance particulaire organique ayant un indice de réfraction compris entre 1,3 et 1,7, cette substance particulaire étant dispersée dans la composition et présentant une granulométrie moyenne en volume comprise entre environ 10 et environ 30 µm; (b) environ 0,05 à environ 2,5 % en poids d'une substance pigment d'interférence du type plaquettes, verte, ayant une épaisseur de couche de TiO¿2? comprise entre environ 120 nm et environ 160 nm ou un multiple entier de ceux-ci; (c) environ 0 à environ 3 % d'un agent matant inorganique; et (d) un excipient topique acceptable sur le plan dermatologique. On réalise des améliorations chroniques supplémentaires de l'état de la peau en incluant un agent chronique choisi parmi des composés de vitamine B3, des rétinoïdes et des mélanges de ceux-ci. Les modes de réalisation particulièrement préférés sont des émulsions huile dans eau pour application non faciale.

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