Use of a mixture of castor oil and carnauba wax as a sweetener, lip care product containing said mixture

Abstract

The invention relates to the use of a mixture of a) castor oil (INCI: Ricinus Communis Seed Oil) and b) carnauba wax (INCI: Copernicia Cerifera Cera) as a sweetener in lip care products.

Description

[0001] Beiersdorf Aktiengesellschaft

[0002] Hamburg

[0003] Description

[0004] Sweetener for lip care products

[0005] The present invention relates to the use of a mixture of castor oil (INCI: Ricinus Communis Seed Oil) and carnauba wax (INCI: Copernicia Cerifera Cera)

[0006] as a sweetener, as well as a cosmetic lip care product (lipstick, lip balm, oleogel) containing this mixture.

[0007] The desire to look beautiful and attractive has been rooted in humankind for thousands of years. Even though the ideal of beauty has changed over time, the pursuit of a flawless appearance has always been a human goal, as a pleasing appearance increases self-esteem and attractiveness to others.

[0008] The term decorative cosmetics derives from the Latin "decoratio" – the highlighting of beauty. It usually involves using dyes to accentuate specific parts of the body, especially the face, and to soften uneven skin tone.

[0009] In addition to face powders and blush as powdered cosmetics and stick-shaped preparations, cream-shaped preparations such as day creams and cream-make-up based on emulsions are also used.

[0010] Lipstick is among the most frequently used decorative cosmetics. More than 50% of women in Germany use it. Besides accentuating the color of the lips, it usually also serves to care for them.

[0011] Lipsticks typically consist of a wax matrix into which liquid and semi-solid oils, as well as pigments and fillers, are incorporated in high concentrations. They are in solid stick form.

[0012] In addition to lipsticks, lip care products are also offered, presented as a more or less viscous cream, such as lip balms or oleogels. Preparations called lip butters are also available; these have a butter-like consistency and consist of various fatty components.

[0013] Lip care products are subject to particularly stringent requirements regarding their safety, as it cannot be ruled out that parts of the preparation will come into contact with the mouth and / or be swallowed during application and wear. Since some ingredients in lip care products have an unpleasant inherent taste, it is also important to mask this taste to make the preparations more appealing to consumers. Sweeteners are frequently used for this purpose. Potentially usable sweeteners include sodium saccharin (INCI: Sodium Saccharin) and / or neohesperidin dihydrochalcone (INCI: Neohesperidin Dihydrochalcone).

[0014] A disadvantage of the current state of the art, however, is that lip care products containing sodium saccharin tend to yellow. Preparations with a combination of sodium saccharin and neohesperidin dihydrochalcone tend to turn red or even brown. This effect occurs particularly at higher temperatures and with longer storage times. If (unplanned) delays occur during the heat phase of production, or if a lipstick is stored at a higher temperature (e.g., in summer), this can lead to undesirable discoloration of the product. In some cases, the entire preparation may have to be discarded and disposed of in a costly manner during the manufacturing process.

[0015] A disadvantage of the current state of the art is that the combination of sweetener (especially sodium saccharin and neohesperidin dihydrochalcone) and pigments leads to inhomogeneous preparations. Even during manufacturing, it is noticeable that in sweetener-containing formulations, the pigments no longer distribute homogeneously in the hot, liquid stick mass, but rather sink to the bottom. Consequently, it is no longer possible to cast uniformly composed sticks from this liquid stick mass.

[0016] The object of the present invention was therefore to develop an alternative form of sweetener with which lip care products can be sweetened and unpleasant inherent tastes of individual ingredients can be masked and produced in a stable manner.

[0017] The problem is surprisingly solved by using a mixture of

[0018] a) Castor oil (INCI: Ricinus Communis Seed Oil) and

[0019] b) Carnauba wax (INCI: Copernicia Cerifera Cera)

[0020] as a sweetener. According to the invention, this use is advantageously characterized in that the weight ratio of castor oil to carnauba wax is from 4:1 to 9:1.

[0021] According to the invention, this use is preferably characterized in that the mixture is used as a sweetener for lip care products such as lipsticks, lip balms, oleogels, and lip butters.

[0022] The problem is also surprisingly solved by a lip care product containing a mixture of

[0023] a) Castor oil (INCI: Ricinus Communis Seed Oil) and

[0024] b) Carnauba wax (INCI: Copernicia Cerifera Cera).

[0025] In such lip care products, it is advantageous according to the invention if the weight ratio of castor oil to carnauba wax is from 4:1 to 9:1.

[0026] In these lip care products according to the invention, it is advantageous if the preparation

[0027] a) Castor oil (INCI: Ricinus Communis Seed Oil) in a concentration of 20 to 30% by weight and

[0028] b) Contains carnauba wax (INCI: Copernicia Cerifera Cera) in a concentration of 3 to 12% by weight, based on the total weight of the preparation.

[0029] In these lip care products, it is preferred according to the invention if the preparation additionally contains polyglyceryl-3 diisostearate (INCI: polyglyceryl-3 diisostearate).

[0030] In such a case, it is advantageous in accordance with the present invention if the preparation contains the polyglyceryl-3 diisostearate (INCI: Polyglyceryl-3 Diisostearate) in a concentration of 1 to 3% by weight, based on the total weight of the preparation.

[0031] Advantageous embodiments of the present invention are further characterized in that the preparation contains glycerin.

[0032] According to the invention, it is preferred if the preparation contains glycerin in a concentration of 3 to 7% by weight, based on the total weight of the preparation. Furthermore, it is advantageous if the preparation is free of sodium saccharin (INCI: Sodium Saccharin) and neohesperidin dihydrochalcone (INCI: Neohesperidin Dihydrochalcone). Examples

[0033] The following examples are intended to illustrate the present invention without limiting it. Unless otherwise stated, all quantities, proportions, and percentages are based on weight and total quantity or total weight of the preparations. The products were tested and evaluated for taste by a trained panel of five experts.

[0034]

Claims

1. Use of a mixture of a) Castor oil (INCI: Ricinus Communis Seed Oil) and b) Carnauba wax (INCI: Copernicia Cerifera Cera) as a sweetener.

2. Use according to claim 1, characterized in that the weight ratio of castor oil to carnauba wax is from 4:1 to 9:

1.

3. Use according to one of the preceding claims, characterized in that the mixture is used as a sweetener for lip care products.

4. Lip care product containing a mixture of a) Castor oil (INCI: Ricinus Communis Seed Oil) and b) Carnauba wax (INCI: Copernicia Cerifera Cera).

5. Lip care product according to claim 4, characterized in that the weight ratio of castor oil to carnauba wax is from 4:1 to 9:

1.

6. Lip care product according to one of the preceding claims, characterized in that the preparation a) Castor oil (INCI: Ricinus Communis Seed Oil) in a concentration of 20 to 30% by weight and b) Contains carnauba wax (INCI: Copernicia Cerifera Cera) in a concentration of 3 to 12% by weight, based on the total weight of the preparation.

7. Lip care product according to one of the preceding claims, characterized in that the preparation additionally contains polyglyceryl-3 diisostearate (INCI: polyglyceryl-3 diisostearate).

8. Lip care product according to one of the preceding claims, characterized in that the preparation contains polyglyceryl-3 diisostearate (INCI: Polyglyceryl-3 diisostearate) in a concentration of 1 to 3% by weight, based on the total weight of the preparation.

9. Lip care product according to one of the preceding claims, characterized in that the preparation contains glycerin.

10. Lip care product according to one of the preceding claims, characterized in that the preparation contains glycerin in a concentration of 3 to 7% by weight, based on the total weight of the preparation.

11. Lip care product according to one of the preceding claims, characterized in that the preparation is free of sodium saccharin (INCI: Sodium Saccharin) and neohesperidin dihydrochalcone (INCI: Neohesperidin Dihydrochalcone).

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