CH712428A1 - Cosmetic composition of sweating. - Google Patents

Abstract

The invention relates to a topical cosmetic composition for sweating, its manufacture and its use, comprising: - Between 5.0% by weight and 25.0% by weight of carbohydrate; - Between 25.0% by weight and 60.0% by weight of citrus extracts; Between 25.0% by weight and 60.0% by weight of salt; Between 0% by weight and 38.0% by weight of aqueous solution.

Description

TECHNICAL FIELD [0001] The present invention relates to a sweat cosmetic cream, a method of applying said cream and a method of manufacturing said cream.

STATE OF THE ART [0002] Today, there are a number of sweat creams to be applied to the skin of a particular area of the body, typically the hips, the belly or the arms. These sweat creams frequently include at least one stimulating compound such as caffeine, incorporated into the cream with lipophilic additives such as glycerol, petrolatum or liquid paraffin. Lipophilic additives confer a soft texture to the cream, help solubilize caffeine while facilitating the application of the cream on the skin.

After application of the cream on the skin, it is recommended to the user to cover the area coated with cream with a flexible plastic film. After several hours, the user cuts the film and rinses the skin to remove cream residue. It is important to rinse the skin thoroughly to remove all cream residue and leave skin cleansed and free of imperfections. In addition, the presence of leftover lipophilic additives from the cream could also stain the clothes of the user.

However, the creams described above are often very fat, the presence of lipophilic additives complicating the rinsing since these compounds are only very slightly soluble in water. It is thus often necessary to thoroughly rinse the area that included the cream, which is tedious for the user. For some very greasy creams, it is even sometimes necessary to use a soap to completely remove the cream residue, which can result in local drying, see irritation, the opposite of the desired effect for a cream .

There is thus a need for a non-greasy sweat cream, which spreads easily and rinses easily. BRIEF SUMMARY OF THE INVENTION [0006] An object of the present invention is to provide a cosmetic cream that is free from limitations or that minimizes the limitations of known cosmetic creams.

An object of the invention is to provide a cosmetic cream easy to apply and easy to rinse after application.

Another object of the invention is to provide a cosmetic cream that promotes sweating of the skin to fight against skin imperfections, which allows to soften, refresh or tone the skin.

An object of the invention is to provide a cosmetic cream that participates in the thinning of a user who applies said cream on his skin.

According to the invention, these objects are achieved in particular by means of a sweat cosmetic cream comprising: - Between 5.0% by weight and 25.0% by weight of carbohydrate; - Between 25.0% by weight and 60.0% by weight of citrus extracts; - Between 25.0% by weight and 60% by weight of salt; Between 0% by weight and 38.0% by weight of aqueous solution.

The cosmetic cream according to the present invention has a purely cosmetic effect in that it is intended to beautify the skin of the user / user.

The inventors have discovered that the cosmetic cream according to the invention promotes sweating of the body area on which it is applied. Advantageously, the increase in sweating can be accompanied by a tonic and refreshing effect. The cosmetic cream according to the invention also allows firming and thinning of the area where the cosmetic cream is applied.

The cosmetic cream according to the invention essentially comprises hydrophilic compounds which facilitates rinsing with an aqueous solution, for example water, after use. The presence of one or more salts combined with citrus ensures effective cleaning of the skin, facilitating sweating. Indeed, citrus fruits have refreshing and toning properties and are also effective against skin imperfections such as blackhead or other comedones. Citrus also helps to soften the skin especially rough areas (knees, heels, elbows for example). Carbohydrates help absorb secreted fluids, such as sweat, so they do not enter the skin again.

According to one embodiment, the cosmetic cream comprises between 27.0% by weight and 30.0% by weight of citrus extracts.

According to one embodiment, the cosmetic cream comprises between 35.0% by weight and 55.0% by weight of citrus extracts.

The cosmetic cream according to the invention essentially contains natural products unlike existing creams which minimizes the undesirable effects associated with certain synthetic products.

According to one embodiment, the sweat cream comprises between 8.0% by weight and 11.0% by weight of carbohydrate.

According to one embodiment, the sweat cream comprises between 10.0% by weight and 20.0% by weight of carbohydrate.

In one embodiment, the sweat cosmetic cream comprises starch, preferably corn starch. Corn starch is a natural carbohydrate that offers good liquid absorption capabilities.

In one embodiment, the cosmetic cream according to the invention may comprise fats, fibers or proteins, but with low proportions so that the cosmetic cream is not greasy. For example, the carbohydrates used may comprise fats, proteins or dietary fibers, for example up to about 1% by weight.

According to one embodiment, the citrus extract comprises a citrus juice, preferably lemon juice. Conventionally, citrus creams use fruit pulp or fibers which does not facilitate the spreading of the cream on the skin. It is interesting to start with citrus juice because it allows to obtain a homogeneous cosmetic cream that does not contain solid particles. In particular, the citrus juice can be pasteurized before being incorporated into the cosmetic cream. This minimizes the presence of pathogens in the cream.

According to one embodiment, the cosmetic cream comprises between 27.0% by weight and 30.0% by weight of salt.

According to one embodiment, the cosmetic cream comprises between 30.0% by weight and 50.0% by weight of salt.

In one embodiment, the cosmetic cream comprises sodium chloride as a majority or single constituent of the salt or salts. The salt used may comprise iodine or fluorine, for example in trace amounts less than 0.1% by weight.

According to one embodiment, the cosmetic cream comprises between 31.0% by weight and 34.0% by weight of aqueous solution.

In particular, the aqueous solution consists essentially of water.

According to one embodiment, the cosmetic cream comprises between 0% by weight and 20.0% by weight of aqueous solution.

According to one embodiment, the cosmetic cream comprises natural product essence, preferably plant essence. Essences of natural products, for example essential oils, perfume the cream and also have soothing, nourishing and restorative properties for irritated and irritated skin.

In one embodiment, the cream comprises sweat cosmetic comprises: - Between 5.0% by weight and 15.0% by weight of carbohydrate; - Between 25.0% by weight and 35.0% by weight of citrus extracts; Between 25.0% by weight and 35% by weight of salt; Between 28.0% by weight and 38.0% by weight of aqueous solution.

In one embodiment, the cosmetic sweat cream comprises: - Between 9.0% by weight and 10.0% by weight of corn starch; Between 27.0% by weight and 29.0% by weight of lemon juice; Between 27.0% by weight and 29.0% by weight of NaCl; Between 33.0% by weight and 35.0% by weight of water.

In one embodiment, the cosmetic sweat cream consists of: - Between 8.5% by weight and 9.5% by weight of corn starch; Between 28.0% by weight and 29.0% by weight of lemon juice; Between 28.0% by weight and 29.0% by weight of NaCl; Between 0.2% by weight and 0.3% by weight of impurities - The remainder of the weight being water.

In one embodiment, the sweat cosmetic cream comprises: between 12.0% by weight and 17.0% by weight of carbohydrate; Between 40.0% by weight and 55.0% by weight of citrus extract; Between 30.0% by weight and 45.0% by weight of salt; - Between 0% by weight and 10.0% by weight of aqueous solution.

In one embodiment, the sweat cosmetic cream comprises: between 12.0% by weight and 17.0% by weight of corn starch; Between 40.0% by weight and 55.0% by weight of lemon juice; Between 30.0% by weight and 45.0% by weight of NaCl; - Between 0% by weight and 10.0% by weight of water.

In one embodiment, the sweat cosmetic cream comprises: between 12.0% by weight and 16.0% by weight of corn starch; Between 43.0% by weight and 47.0% by weight of lemon juice; Between 37.0% by weight and 41.0% by weight of NaCl; Between 0.1% by weight and 3.0% by weight of water.

In one embodiment, the sweat cosmetic cream consists of: between 12.0% by weight and 17.0% by weight of corn starch; Between 40.0% by weight and 55.0% by weight of lemon juice; Between 30.0% by weight and 45.0% by weight of NaCl; - Between 0.2% by weight and 0.3% by weight of impurities - The remainder of the weight being water.

In one embodiment, the cosmetic cream contains a very small amount of aqueous solution. For example, the cream contains between 0.1 and 1.6% aqueous solution. Advantageously, the cosmetic cream does not contain an aqueous solution. The inventors have discovered that when the cream contains a very small amount of aqueous solution, the cream adheres better to the skin during application. This observation is also true when the cream does not contain an aqueous solution.

The inventors have also discovered that a very small amount of aqueous solution can improve the shelf life of the cream. This observation is also true when the cream does not contain an aqueous solution.

The invention also relates to a method for manufacturing a sweat cosmetic cream, the method comprising: i) preparing an initial solution by dissolving at least 80% by weight of salt in at least 30% by weight of the solution or in at least 30% of the citrus extracts when the cream does not contain an aqueous solution, maintaining said initial solution with stirring between 90 ° C and 100 ° C until the initial solution is homogeneous; ii) preparing a binding solution comprising: ii) 1) at least 90% by weight of carbohydrates, citrus extracts and the remainder of aqueous solution, if the cream comprises an aqueous solution; or ii) 2) at least 90% by weight of carbohydrates, and the rest of the citrus extracts if the cream does not include an aqueous solution; and maintaining said binding solution ii) 1) or ii) 2) under agitation until the binding solution is homogeneous; iii) gradually incorporating the binding solution in the initial solution to prepare a base composition, said initial solution being maintained at a temperature between about 55 ° C and about 65 ° C; iv) At the end of the incorporation, heat the base composition with stirring at a temperature between 65 ° C and 75 ° C until a homogeneous cream.

In one embodiment, when the cream contains a small amount of aqueous solution, for example less than 15% by weight, preferably less than 10% by weight, this small amount of aqueous solution is introduced into the cream. the result of the incorporation of the binding solution in the initial solution, that is to say after step iii). In particular, this small amount of aqueous solution is introduced in step iv).

In one embodiment, the sweat cream comprises an aqueous solution. In this case, step i) of the process according to the invention comprises the preparation of an initial solution by dissolving at least 80% by weight of salt in at least 30% by weight of the aqueous solution. The initial solution is then called brine. A method of manufacturing a sweat cosmetic cream according to the invention, the cream comprising an aqueous solution, can comprise the following steps: i) Prepare a brine by dissolving at least 80% by weight of salt in at least 30% by the weight of the aqueous solution by maintaining said brine under agitation between 90 ° C and 100 ° C until the brine is homogeneous; ii) preparing a binding solution comprising: at least 90% by weight of carbohydrates, citrus extracts and the remainder of aqueous solution and maintaining said binding solution with stirring until the binding solution is homogeneous; iii) progressively stirring the binding solution in the brine to prepare a base composition, said brine being maintained at a temperature between about 55 ° C and about 65 ° C; iv) At the end of the incorporation, heat the base composition with stirring at a temperature between 65 ° C and 75 ° C until a homogeneous cream.

In one embodiment, step i) comprises i) preparing an initial solution by dissolving at least 80% by weight of salt in at least 50% by weight of the aqueous solution or in at least 50% by weight of the aqueous solution. citrus extracts when the cream does not contain aqueous solution, maintaining said initial solution under agitation between 90 ° C and 100 ° C until the initial solution is homogeneous.

In the method of manufacture according to the invention, the inventors have discovered that when the binding solution is incorporated in the initial solution maintained between about 55 ° C and about 65 ° C, it facilitates the incorporation of the solution of binding in the initial solution without damaging the components of the binding solution. After incorporation, the base composition is heated and stirred at 65 ° C to 70 ° C to homogenize and stabilize the base composition.

According to one embodiment, the salts and carbohydrates are introduced into the cosmetic cream each in two portions at different stages of the manufacture of the cream. The first salt portion comprises for example 80% by weight of salt, the remainder being in the second portion. The first portion of carbohydrates comprises 90% by weight of carbohydrates, the remainder being in the second portion. In one embodiment, the second portion of salt and the second portion of carbohydrate are incorporated in the cream after step iv), in a cream at a temperature between 25 ° C and 50 ° C. The inventors have discovered that when at least a portion of the carbohydrates is not heated to a temperature above 50 ° C, this significantly improves the fluid absorption capabilities of the cosmetic cream, for example the absorption of sweat. Advantageously, the inventors have also discovered that the incorporation of the second salt portion made it possible to obtain a cream that is more concentrated in salt, or even saturated with salt, which improves its sweating effect. This also makes it possible to obtain a more smooth and creamy cosmetic cream that spreads more easily.

In one embodiment, the method comprises: v) Incorporating the remaining salt and the remaining carbohydrate into the cream.

The invention also relates to a method of applying a cosmetic cream comprising: i) Applying the cosmetic sweat cream according to the invention to a skin application zone; ii) Cover the application area with film paper; iii) After at least 2 hours of application, remove the film and rinse the application area with an aqueous solution.

For example, about 30 to 40 g of cream is applied to an area such as the hips or belly.

The film paper is for example a stretchable plastic paper which adapts to the shape it covers.

After at least 2 hours of application, the cosmetic cream provides a toning effect, refreshing but also a firming and thinning of the area where the cosmetic cream is applied. The user may choose to keep the cosmetic cream longer, for example overnight, to enhance the effect of the cream on the area where the cosmetic cream is applied.

Surprisingly, the inventors have discovered that the cosmetic cream according to the invention has its own mechanical properties, especially when the carbohydrates comprise corn starch. It is known that corn starch has rheo-thickening properties.

When the cosmetic cream is compressed by the film on a part of the body that is in motion, the cosmetic cream behaves in part as a rheo-thickening fluid through the presence of starch. The viscosity of the cosmetic cream decreases the more the stress on the cosmetic cream is strong. Thus, the cosmetic cream absorbs better bodily fluids such as sweat.

Claims (14)

Embodiment Example of the Invention [0050] In a first example, the cosmetic cream without aqueous solution according to the present invention can be manufactured according to the following protocol: 1) Prepare an initial solution by dissolving 30 g. NaCl in 30 l of lemon juice, stirring and heating to 95 ° C said initial solution until the initial solution is homogeneous; 2) Prepare a binding solution by mixing 13.5 g of cornstarch, 20 cl of lemon juice with stirring and heating at 95 ° C said binding solution until the binding solution is homogeneous; 3) gradually embed the binding solution in the initial solution to prepare a base composition, said initial solution being at a temperature of 65 ° C; 4) At the end of the incorporation, heat the base composition with stirring at a temperature of 75 ° C for 1 to 2 minutes until a homogeneous cream. 5) Let the cream come back to a temperature below 50 ° C and add 1.5 g. cornstarch and 5 g. of NaCl. The cream made according to this example is ready to be applied to the skin of a user. In a second example, the cosmetic cream comprising 34% by weight of aqueous solution according to the present invention can be manufactured according to the following protocol: 1) Prepare a brine by dissolving 24 g. of NaCl in 23 cc of water with stirring and heating to 95 ° C said brine until the brine is homogeneous; 2) Prepare a binding solution by mixing 8.5 g corn starch, 28.5 cl pasteurized lemon juice, 11 cl water, stirring and heating at 95 ° C said binding solution until the bonding solution is homogeneous; 3) Gradually stir in brine solution to prepare a base composition, said brine being at a temperature of 65 ° C; 4) At the end of the incorporation, heat the base composition with stirring at a temperature of 75 ° C for 1 to 2 minutes until a homogeneous cream. 5) Allow the cream to come back to a temperature below 50 ° C and add 1 g. cornstarch and 4 g. of NaCl. The cream made according to this example is ready to be applied to the skin of a user. claims 1. Cosmetic sweat cream comprising: - Between 5.0% by weight and 25.0% by weight of carbohydrate; - Between 25.0% by weight and 60.0% by weight of citrus extracts; - Between 25.0% by weight and 60% by weight of salt; Between 0% by weight and 38.0% by weight of aqueous solution. 2. A cosmetic sweat cream according to claim 1 comprising between 10.0% by weight and 20.0% by weight of carbohydrate. 3. Cosmetic sweat cream according to one of claims 1 or 2 comprising between 35.0% by weight and 55.0% by weight of citrus extracts. 4. A cosmetic sweat cream according to one of the preceding claims comprising 30.0% by weight and 50.0% by weight of salt. 5. Cosmetic sweat cream according to one of the preceding claims comprising 0% by weight and 20.0% by weight of aqueous solution. The cosmetic sweat cream according to one of the preceding claims wherein the carbohydrates comprise starch, preferably corn starch. The cosmetic sweat cream according to one of the preceding claims wherein the citrus extracts comprise citrus juice, preferably lemon juice. 8. Cosmetic sweat cream according to the preceding claim wherein the citrus juice is pasteurized. 9. Cosmetic sweat cream according to one of the preceding claims wherein the salt comprises sodium chloride. 10. Cosmetic sweat cream according to one of the preceding claims wherein the aqueous solution consists essentially of water. 11. Cosmetic sweat cream according to one of the preceding claims comprising the essence of natural product, preferably plant essence. 12. A method of manufacturing a sweat cosmetic cream according to one of claims 1 to 11, the method comprising: i) preparing an initial solution by dissolving at least 80% by weight of salt in at least 30% by weight of the aqueous solution or in at least 30% of the citrus extracts when the cream does not contain an aqueous solution, maintaining said initial solution under agitation between 90 ° C and 100 ° C until the initial solution is homogeneous ; ii) preparing a binding solution comprising: ii) 1) at least 90% by weight of carbohydrates, citrus extracts and the remainder of aqueous solution, if the cream comprises an aqueous solution; or ii) 2) at least 90% by weight of carbohydrates, and the rest of the citrus extracts if the cream does not include an aqueous solution; and maintaining said binding solution ii) 1) or ii) 2) under agitation until the binding solution is homogeneous; iii) gradually incorporating the binding solution in the initial solution to prepare a base composition, said initial solution being maintained at a temperature between about 55 ° C and about 65 ° C; iv) At the end of the incorporation, heat the base composition with stirring at a temperature between 65 ° C and 75 ° C until a homogeneous cream. 13. Method according to the preceding claim comprising the following step, after step iv): - v) Incorporate the remaining salt and the remaining carbohydrate in the cream. 14. A method of applying a sweat cream according to one of claims 1 to 11 comprising: i) applying the cosmetic sweat cream according to one of claims 1 to 11 on a skin application zone; ii) Cover the application area with film paper; iii) After at least 2 hours of application, remove the film and rinse the application area with an aqueous solution.