Highly active antiperspirant with improved skin tolerability
Antiperspirant compositions that are suitable in particular for application with a roller applicator and contain water, at least one antiperspirant aluminum-zirconium-glycine complex and also L-valine, wherein the weight ratio of glycine to L-valine is in the range of about 20:1 to about 4:1, have a high antiperspirant efficacy and are tolerated very well on the skin at the same time.
1. An antiperspirant composition, comprising:
water,
at least one antiperspirant aluminum-zirconium-glycine complex, and
L-valine,
wherein the weight ratio of glycine to L-valine is from about 20:1 to about 4:1.
2. The composition according to claim 1 , the antiperspirant composition has a pH of from about 3.0 to about 4.5 at 20° C.
3. The composition according to claim 1 , wherein the at least one antiperspirant aluminum-zirconium-glycine complex is present in a total amount of from about 6 to about-20 wt % based on the total weight of the active substance (USP) without any water of crystallization or ligands present in the antiperspirant composition.
4. The composition according to claim 1 , wherein from about 0.4 to about 5.0 wt % glycine is present based on the weight of the antiperspirant composition.
5. The composition according to claim 1 , wherein from about 0.01 to about 1 wt % L-valine is included based on the weight of the antiperspirant composition.
6. The composition according to claim 1 , wherein the weight ratio of glycine to L-valine is from about 17:1 to about 5:1.
7. The composition according to claim 1 , wherein ethanol is included in an amount of from about 0 to about 5 wt % based on the weight of the composition.
8. The composition according to claim 1 , wherein at least one cosmetic oil is included in a total amount of from about 0.1 to about 15 wt % based on the total weight of all the additional oils in the antiperspirant composition.
9. The composition according to claim 1 , wherein water is included in a total amount of from about 40 to about 90 wt % based on the weight of the composition.
10. A method comprising using L-valine to improve skin tolerability of an antiperspirant composition comprising:
water and at least one antiperspirant aluminum-zirconium-glycine complex, wherein the method comprises incorporating the L-valine into the antiperspirant composition such that the weight ratio of glycine to L-valine is from about 20:1 to about 4:1.
11. The composition according to claim 1 , wherein the antiperspirant composition has a pH of from about 3.3 to about 4.0 at 20° C.
12. The composition according to claim 1 , wherein the at least one antiperspirant aluminum-zirconium-glycine complex is present in a total amount of from about 10 to about 16 wt % based on the total weight of the active substance (USP) without any water of crystallization or ligands present in the antiperspirant composition.
13. The composition according to claim 1 , wherein from about 0.5 to about 2.0 wt % glycine is present based on the weight of the antiperspirant composition.
14. The composition according to claim 1 , wherein from about 0.05 to about 0.3 wt % L-valine is included based on the weight of the antiperspirant composition.
15. The composition according to claim 1 , wherein the weight ratio of glycine to L-valine is from about 15:1 to about 10:1.
16. The composition according to claim 1 , wherein ethanol is included in an amount of from about 0 to about 3 wt % based on the weight of the composition.
17. The composition according to claim 1 , wherein at least one cosmetic oil is included in a total amount of from about 0.3 to about 10 wt % based on the total weight of all the additional oils in the antiperspirant composition.
18. The composition according to claim 1 , wherein water is included in a total amount of from about 50 to about 85 wt % based on the weight of the composition.