Cosmetic compositions

A cosmetic composition and a technology for the composition, which are applied in the directions of cosmetics, cosmetic preparations, cosmetic preparations, etc., can solve the problems of unavoidable interaction of ingredients and the like

Active Publication Date: 2015-05-27
德之馨股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the more complex the composition becomes, the mo

Method used

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  • Cosmetic compositions
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 3

[0239] Examples 1 to 3, Comparative Examples C1 to C3

[0240] O / W emulsions were prepared by heating lipid phase A and aqueous phase B separately to about 80°C. The aqueous phase B was then added to the fatty phase A and mixed in the disperser Ultra-Turrax at 5000 rpm for 2 minutes. The emulsion thus obtained was cooled using a blade stirrer at 150 rpm for 10 minutes. Finally the pH was adjusted to about 8.0 by adding aqueous sodium hydroxide solution. Time-dependent determination of transmittance using the An analytical centrifuge (L.U.M. GmbH) was used to determine the stability of the emulsion. The instability coefficient was defined from 0 (very stable) to 1 (complete separation). An experiment of 1.25 hours at 25° C. and a speed of 2500 rpm corresponds to a storage time of about 1 month. The composition and stability results of the emulsions are listed in Table 1. Examples 1 to 3 correspond to the invention, examples C1 to C3 are used for comparison.

[0241] Tab...

Embodiment 4 to 6

[0245] Examples 4 to 6, Comparative Examples C4 to C6

[0246] O / W emulsions were prepared according to the procedure given in Examples 1 to 3, except that the pH was adjusted to about 9.1. use again An analytical centrifuge (L.U.M. GmbH) was used to determine the stability of the emulsion. The composition and stability results of the emulsions are listed in Table 2. Examples 4 to 6 correspond to the invention, examples C4 to C6 are used for comparison.

[0247] Table 2

[0248] contain O / W Emulsion

[0249]

[0250] The second set of examples and comparative examples clearly demonstrate that the addition of menthone glycerol acetal (FEMA3807) to an emulsion results in less separation and improves the stability of the emulsion.

Embodiment 7 to 9

[0251] Examples 7 to 9, Comparative Examples C7 to C9

[0252] O / W emulsions were prepared according to the procedure given in Examples 1-3. The particle size distribution of the O / W emulsion was measured using a Mastersizer Micro (Malvern) using the principle of laser diffraction.

[0253] The compositions of the emulsions are listed in Table 3 and the results are shown in Table 4 and Figures 1, 2 and 3. Examples 7 to 9 correspond to the invention, examples C7 to C9 are used for comparison.

[0254] table 3

[0255] contain O / W Emulsion

[0256]

[0257] Table 4

[0258] Particle size distribution (all values ​​in μm)

[0259] particle size

C7

7

C8

8

C9

9

D(v,0.1)=10%

3.97

2.04

8.48

1.60

2.37

1.58

D(v,0.5)=50%

23.29

10.46

44.15

7.53

14.76

9.32

D(v,0.9)=90%

89.13

65.85

103.40

19.40

36.53

21.21

[0260] The factor "v" refers to the volu...

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Abstract

Suggested is a cosmetic composition, comprising (a) menthone compounds according to formula (Ia) or (Ib) and (b) at least one oil body or wax, and optionally (c) at least one emulsifier and/or (d) at least one active principle

Description

technical field [0001] The present invention belongs to the field of cosmetics and relates to novel compositions containing selected menthone compounds possessing improved stability and enhanced sensory properties when applied to human skin. Background technique [0002] Typically, cosmetic compositions contain a variety of ingredients. Looking at the ingredient list for a regular night cream reveals nearly 20 and there is a tendency to add as many as possible to address many different concerns at once. In fact many consumers equate the complexity of the composition with the benefit and accept the high price because they also expect high performance. On the other hand the more complex the composition becomes, the more difficult it is to avoid negative interactions between the ingredients. A major problem of cosmetic compositions, of course especially with emulsions of all types, remains their stability, especially when they are subjected to unfavorable storage conditions, ...

Claims

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Application Information

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IPC IPC(8): A61K8/06A61K8/49A61Q19/00
CPCA61K8/4973A61K8/06A61K8/39A61Q15/00A61K8/922A61K8/26A61K8/37A61K8/498A61Q17/04A61Q19/00A61K8/92A61K2800/244
Inventor D·布劳德C·卡勒姆M·柯尼希S·朗格S·西格尔
Owner 德之馨股份公司
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