| abstract |
The present invention relates to a cosmetic composition for topical application, in particular to the protection of the skin and / or hair, in the form of a dispersion, comprising: two immiscible phases stabilized with at least one anionic surfactant, fatty acids with monovalent or polyvalent metals, ammonia or organic a salt for the treatment of ultraviolet radiation which is a hydrophilic filter material and which contains at least one partially or completely neutralized sulfonic acid group which is capable of being absorbed at the interface of said immiscible phases and which is represented by the general formula (III) wherein Z is a group of formula (a), R2 is -H or -SO3H, n is 0 or 1, or a number greater than 1 but less than 4, or 4; R 1 is one or more straight or branched C 1-4 alkyl or alkoxy groups; the bimethylidene camphor group on the phenyl group is in the meta or para position relative to each other, and a metal oxide nanopigment coated with a hydrophobic hydrocarbon-based coating agent, which is titanium oxide, zinc oxide, iron oxide, zirconia or cerium oxide, and having an average primary particle size of 5 to 100 mm, and characterized in that it further comprises a cationic or zwitterionic amphiphile compound which, together with the anionic surfactant, forms a compound capable of lowering the water / liquid paraffin interface stress by 40 °. C with more than 14 mNm-1 at an anionic surfactant concentration of 0,1 mmol / 100 g, more than 26 mNm-1 with an anionic surfactant concentration of 0,5 mmol / 100 g and more than 33 mNm-1 , if the concentration of the anionic surfactant is 1 mmol / 100 g. HE |