Light Protecting-Effective Cosmetic or Dermatological Preparations
AssigneeBASF SE
InventorsStefan Muller, Thomas Ehlis, Jochen Giesinger, Gilbert Kreyer
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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.
Claims23
A method for the enhancement of light protection of a cosmetic or dermatological composition, said method comprising
- adding an insoluble or sparingly soluble micronized substance to said composition, and dispersing said micronized substance in the oil or water phase of said composition
- wherein said composition further comprises at least one cosmetic UV filter that is soluble in the water or oil phase and with the proviso that said micronized substance is not a cosmetic UV absorber.
A cosmetic or dermatological composition comprising
- (a) a micronized, insoluble or sparingly soluble substance which is not a cosmetic UV absorber having a refraction index of n=1 to 2.5 and a Δn=0.001 to 0.8 n;
- (b) a UV-Filter which can be formulated in the oil- or water-phase;
- (c) a water phase,
- (d) an oil phase,
- and a cosmetically acceptable carrier.
(canceled)
Dependencies are inferred from the claim text.