Optically appealing cosmetic or dermatological preparation
A cosmetic or dermatological preparation which comprises an aluminum containing antiperspirant active ingredient, an α-hydroxycarboxylic acid, water and optionally, a plurality of particles in a stably suspended state. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
1. A cosmetic or dermatological preparation, wherein the preparation comprises (a) at least one antiperspirant active ingredient, (b) at least one α-hydroxycarboxylic acid, and (c) at least 60% by weight of water, based on a total weight of the preparation, and wherein the preparation further comprises a plurality of suspended liquid particles, at least 80% of the suspended particles having a size of from about 0.5 mm to about 5 mm.
2. The preparation of claim 1 , wherein the liquid particles comprise an emulsion.
3. The preparation of claim 1 , wherein the suspended particles are colored.
4. The preparation of claim 1 , wherein (b) comprises at least one of mandelic acid, tartaric acid, and citric acid.
5. The preparation of claim 4 , wherein (b) comprises at least mandelic acid.
6. The preparation of claim 5 , wherein (a) comprises one or more aluminum salts.
7. The preparation of claim 1 , wherein (a) comprises aluminum chlorohydrate.
8. The preparation of claim 1 , wherein (a) comprises activated aluminum chlorohydrate.
9. The preparation of claim 1 , wherein (a) comprises both aluminum chlorohydrate and activated aluminum chlorohydrate.
10. The preparation of claim 1 , wherein a weight ratio (a):(b) is from about 15:1 to about 1:1.
11. The preparation of claim 10 , wherein a weight ratio (a):(b) is from about 12:1 to about 2:1.
12. The preparation of claim 1 , wherein (a) is present in an amount of from about 1% to about 25% by weight, based on the total weight of the preparation.
13. The preparation of claim 1 , wherein (b) is present in an amount of from about 0.1% to about 10% by weight, based on the total weight of the preparation.
14. The preparation of claim 1 , wherein the preparation further comprises at least one of EDTA and a salt thereof.
15. The preparation of claim 1 , wherein the preparation is present as an O/W microemulsion.
16. The preparation of claim 15 , wherein the microemulsion comprises one or more emulsifiers which are at least one of polyethoxylated and polypropoxylated.
17. The preparation of claim 1 , wherein the preparation is present as a gel.
18. The preparation of claim 1 , wherein the preparation has a defined yield point.
19. The preparation of claim 18 , wherein the preparation has a yield point, determined at 25° C. with a shear stress time ramp of 40 Pa/min, of from about 5 Pa to about 120 Pa.
20. The preparation of claim 1 , wherein the preparation is transparent or translucent.
21. The preparation of claim 1 , wherein the preparation further comprises a sunscreen.
22. The preparation of claim 1 , wherein the preparation further comprises a perfume and a solubilizer for the perfume.
23. The preparation of claim 22 , wherein the solubilizer comprises a polyalkoxylated fatty acid triglyceride.
24. The preparation of claim 1 , wherein the preparation comprises at least 70% by weight of (c).
25. The preparation of claim 1 , wherein the preparation is present as an emulsion.
26. The preparation of claim 1 , wherein at least 90% of the suspended particles have a size of from about 0.5 mm to about 5 mm.
27. The preparation of claim 1 , wherein the suspended particles have a particle size of up to 3 mm.
28. The preparation of claim 27 , wherein the suspended particles have a particle size of at least 0.5 mm.
29. A cosmetic or dermatological preparation, wherein the preparation comprises (a) at least one of aluminum chlorohydrate and activated aluminum chlorohydrate, (b) mandelic acid, and (c) at least 70% by weight water, based on a total weight of the preparation, and wherein the preparation further comprises a plurality of suspended liquid particles, at least 80% of the suspended particles having a size of from about 0.5 mm to about 5 mm.
30. The preparation of claim 29 , wherein a weight ratio (a):(b) is from about 10:1 to about 2.5:1.
31. The preparation of claim 29 , wherein the preparation comprises from about 1% to about 20% by weight of (a) and from about 0.1% to about 8% by weight of (b), based on the total weight of the preparation.
32. The preparation of claim 29 , wherein the preparation is present as an emulsion.
33. The preparation of claim 31 , wherein the preparation is present as an O/W microemulsion.
34. The preparation of claim 31 , wherein the preparation is present as a microemulsion gel.
35. A cosmetic or dermatological preparation, wherein the preparation comprises (a) from about 1% to about 20% by weight of at least one of aluminum chlorohydrate and activated aluminum chlorohydrate, (b) from about 0.1% to about 8% by weight of mandelic acid, a weight ratio (a):(b) being from about 10:1 to about 2.5:1, and (c) at least 70% by weight of water, each based on a total weight of the preparation, and wherein the preparation further comprises a plurality of suspended liquid particles having a size of from about 0.5 mm to about 2 mm.
36. The preparation of claim 35 , wherein the preparation is present as an O/W microemulsion gel.
37. A combination of the preparation of claim 1 and an applicator for the preparation, wherein the applicator is suitable for applying the preparation onto skin and comprises a rotatable and rotationally symmetric body with a structured surface.
38. The combination of claim 37 , wherein the symmetric body comprises a ball.