Abstract: Disclosed is the use of the compounds (A) corresponding to formula wherein R1 represents C6-C24alkyl; R2 is hydrogen; or C1-C4alkyl; R3 is a radical of formula (1a) *—(CH2)n1—R4 R4 is a heterocyclic or aromatic radical comprising 4 to 6 carbon atoms which can contain from 1 to 3 nitrogen and/or oxygen atoms; n1 is a number from 0 to 5; or R2 and R3 together with the linking nitrogen atom form a heterocyclic radical comprising 4 to 6 carbon atoms which can contain one or more oxygen or nitrogen atoms; as solubilizing agent for organic UV filters (B) selected from (B1) benzophenone derivatives, (B2) hydroxyphenyl triazine derivatives; and (B3) trianilino-s-triazine derivatives.

Abstract: The present invention relates to the use of the compounds (A) corresponding to formula wherein R1 is hydrogen; a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1, 2 or 3 double bonds; R2 independently from each other are hydrogen; methyl; ethyl; —OH; —COOR4; —CH2—OH; and —CH2—COOR4; R4 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1, 2 or 3 double bonds; R3 independently from each other are hydrogen; methyl; ethyl; —OH; —COOR5; —CH2—OH; and —CH2—COOR5; R5 is hydrogen; or a linear or branched C1-C30 aliphatic hydrocarbon residue comprising 0, 1, 2 or 3 double bonds; n is at least 0.

Abstract: Disclosed is the use of an insoluble or sparingly soluble micronized substance class which is not a cosmetic UV absorber and which is dispersed in the oil- or water-phase of a cosmetic or dermatological composition for the enhancement of light protecting action of this cosmetic or dermatological composition comprising at least one cosmetic UV filter which is soluble in the water- or oil-phase. The cosmetic preparation according to the invention shows a remarkable increase in SPF.

Abstract: Use of benzotriazole derivatives of formula (1), wherein R1 is C1-C30alkyl; C1C5alkoxy; C1-C5alkoxycarbonyl; C5-C7cycloalkyl; C6-C10aryl; aralkyl; —SO3M; a radical of formula (1a) R3 is hydrogen; C1C5alkyl; C1C5alkoxy; halogen, preferably Cl; or hydroxy; R4 and R5 are each independently of the other hydrogen; or d-C5alkyl; m is 1 or 2; n is O or 1; if m=1, R2 is hydrogen; unsubstituted or phenyl-substituted d-C1-C12alkyl; or C6-C10aryl; if m=2, R2 is the direct bond; or —(CH2)p—; and p is 1 to 3; for enhancing the photostability of cosmetic or dermatologic compositions comprising at least one further organic UV absorber.

Abstract: Disclosed is the use of benzylidene malonates of formula (1) wherein R1 is methyl; ethyl; propyl; or n-butyl; if R1 is methyl, then R is tert. butyl; a radical of formula (1a) or a radical of formula (1b) wherein R2 and R3, independently from each other are hydrogen; or methyl; R4 is methyl; ethyl; or n-propyl; R5 and R6 independently from each other are hydrogen; or C1-C3alkyl; if R1 is ethyl; propyl; or n-butyl, then R is isopropyl; for the protection of human and animal hair and skin against UV radiation.

Abstract: Disclosed is the use of an aqueous dispersion comprising (a) a micronized sparingly soluble organic compound which has a UV-Vis spectrum with a maximum from 380 to 420 nm; and (b) an anionic dispersing agent for protecting the human skin from browning and skin aging.

Abstract: Use of benzotriazole derivatives of formula (1), wherein R1 is C1-C30alkyl; C1C5alkoxy; C1-C5alkoxycarbonyl; C5-C7cycloalkyl; C6-C10aryl; aralkyl; —SO3M; a radical of formula (1a) R3 is hydrogen; C1C5alkyl; C1C5alkoxy; halogen, preferably Cl; or hydroxy; R4 and R5 are each independently of the other hydrogen; or d-C5alkyl; m is 1 or 2; n is O or 1; if m=1, R2 is hydrogen; unsubstituted or phenyl-substituted d-C1-C12alkyl; or C6-C10aryl; if m=2, R2 is the direct bond; or —(CH2)p—; and p is 1 to 3; for enhancing the photostability of cosmetic or dermatologic compositions comprising at least one further organic UV absorber.

Abstract: Disclosed is the use of an aqueous dispersion comprising (a) a micronized sparingly soluble organic compound which has a UV-Vis spectrum with a maximum from 380 to 420 nm; and (b) an anionic dispersing agent for protecting the human skin from browning and skin aging.

Abstract: Disclosed is the use of an insoluble or sparingly soluble micronized substance class which is not a cosmetic UV absorber and which is dispersed in the oil- or water-phase of a cosmetic or dermatological composition for the enhancement of light protecting action of this cosmetic or dermatological composition comprising at least one cosmetic UV filter which is soluble in the water- or oil-phase. The cosmetic preparation according to the invention shows a remarkable increase in SPF.