Composition for mousse

Abstract

This composition for mousse, which improves conventional well-known compositions for mousse, is characterized by containing 55-90 mass% of water, 1-10 mass% of stearic acid, 1-10 mass% of coconut oil fatty acid, 0.8-20 mass% of glycerin, 0.3-20 mass% of triethanolamine, 0.4-10 mass% of cetanol, 0.1-10 mass% of polyvinylpyrrolidone, 0.1-10 mass% of ceteareth-20, 0.04-10 mass% of tetrasodium ethylenediamine tetraacetate, 0.09-10 mass% of an aloe vera gel and 0.1-5 mass% of organic calcium. Due to this configuration, provided is a composition for mousse that achieves an improved skin protection effect and improved skin metabolism promotion.

Description

Mousse composition

[0001] The present invention relates to a composition for mousse that has excellent skin protection effects and promotes skin metabolism.

[0002] Soaps, detergents, and other cleaning products have long been used to cleanse human skin, but they contain a lot of water and, with repeated use, can become irritants that cause skin inflammation, damage, and pain. In addition to cleaning products, there are many other chemicals we come into contact with on a daily basis that can also cause skin irritation and damage, as well as ultraviolet light and physical stimuli.

[0003] As a technique for reducing such skin irritation, a composition particularly useful as a mousse is known from Patent Document 1. The composition in Patent Document 1 contains water, dimethicone, stearic acid, coconut fatty acid, isopropyl myristate, glycerin, triethanolamine, cetyl alcohol, polyvinylpyrrolidone, cetearyl alcohol, ceteareth-20, tetrasodium ethylenediaminetetraacetate, hydroxyethylcellulose, aloe vera gel, vitamin E, and lanolin.

[0004] This composition is excellent in that it can strengthen the skin's barrier function and protect the skin from the above-mentioned irritations, but in recent years, the number of types of irritations has been increasing, so there has been a demand for technology that can provide skin protection and increase skin metabolism that can respond to these irritations.

[0005] U.S. Patent No. 5,208,013

[0006] Therefore, an object of the present invention is to improve the above composition to provide a composition for mousse that has improved skin protection effect and skin metabolism enhancement.

[0007] As a result of intensive research to solve the above problems, the present inventors have discovered that by using some of the ingredients of U.S. Pat. No. 5,208,013 and combining them with organic calcium, a composition for mousse having improved skin protection and skin metabolism promotion can be obtained, and have completed the present invention.

[0008] That is, the present invention is as follows: (1) A composition for mousse, comprising 55 to 90% by mass of water, 1 to 10% by mass of stearic acid, 1 to 10% by mass of coconut fatty acid, 0.8 to 20% by mass of glycerin, 0.3 to 20% by mass of triethanolamine, 0.4 to 10% by mass of cetanol, 0.1 to 10% by mass of polyvinylpyrrolidone, 0.1 to 10% by mass of ceteareth-20, 0.04 to 10% by mass of tetrasodium ethylenediaminetetraacetate, 0.09 to 10% by mass of aloe vera gel, and 0.1 to 5% by mass of organic calcium. (2) The composition for mousse according to (1), wherein the organic calcium has a pH of 7 to 8 when dissolved in water. (3) The mousse composition according to (1) or (2), further comprising 1 to 10% by mass of dimethicone, 1 to 5% by mass of isopropyl myristate, 0.1 to 10% by mass of cetearyl alcohol, and 0.1 to 10% by mass of hydroxyethyl cellulose. (4) The mousse composition according to (1) or (2), further comprising 1 to 10% by mass of dimethicone, 0.1 to 10% by mass of cetearyl alcohol, and 0.1 to 10% by mass of hydroxyethyl cellulose. (5) The mousse composition according to (1) or (2), further comprising 1 to 10% by mass of dimethicone and 0.1 to 10% by mass of hydroxyethyl cellulose. (6) The mousse composition according to (1) or (2), further comprising 0.1 to 10% by mass of cetearyl alcohol. (7) The mousse composition according to any one of (1) to (6), further comprising a propellant. (8) The composition for mousse according to any one of (1) to (7), further comprising one or more selected from the group consisting of preservatives, ultraviolet absorbers, antibiotics, fragrances, cell activating ingredients, vitamins, protective agents, cosmetic ingredients, bases, and emulsion stabilizers.

[0009] The mousse composition of the present invention forms an excellent mousse, has excellent skin protection effects and promotes skin metabolism, and as a secondary effect, improves the skin's barrier function.

[0010] Therefore, the mousse composition of the present invention is useful for various skin care purposes.

[0011] Fig. 1 is a diagram showing an example of a manufacturing apparatus for manufacturing organic calcium. Fig. 2 is a diagram showing an example of a procedure for heating a calcium raw material in an oxygen-free atmosphere in a process for manufacturing organic calcium. Fig. 3 is a diagram showing the results of a mitochondrial activation test in Example 1 (vertical axis: mitochondrial activity). Fig. 4 is a diagram showing the results of a foam stability test in Example 1 (vertical axis: mm).

[0012] The mousse composition of the present invention contains 55 to 90% by mass of water, 1 to 10% by mass of stearic acid, 1 to 10% by mass of coconut fatty acid, 0.8 to 20% by mass of glycerin, 0.3 to 10% by mass of triethanolamine, 0.4 to 10% by mass of cetanol, 0.1 to 10% by mass of polyvinylpyrrolidone, 0.1 to 10% by mass of ceteareth-20, 0.04 to 10% by mass of tetrasodium ethylenediaminetetraacetate, 0.09 to 10% by mass of aloe vera gel, and 0.1 to 5% by mass of organic calcium. These ingredients are basically listed by their cosmetic label names and are essential ingredients.

[0013] In this specification, the term "mousse" refers to a foam-like substance. The term "mousse-use" refers to a composition for mousse that contains a propellant and becomes foamy when sprayed together with a propellant, as described below.

[0014] Of the above components, water is not particularly limited, but deionized water is preferred to reduce irritation to the skin. The water content in the mousse composition of the present invention is 55 to 90% by mass, preferably 55 to 80% by mass, more preferably 55 to 70% by mass, and particularly preferably 55 to 60% by mass.

[0015] Among the above ingredients, stearic acid has the chemical formula C １８ H ３６ O ２ The content of stearic acid in the mousse composition of the present invention is 1 to 10% by mass, preferably 1 to 8% by mass, more preferably 1 to 6% by mass, and particularly preferably 1 to 5% by mass.

[0016] Among the above components, coconut fatty acid is also called coconut acid (fatty acid) and contains a fatty acid derived from coconut oil. The content of coconut fatty acid in the mousse composition of the present invention is 1 to 10% by mass, preferably 1 to 8% by mass, more preferably 1 to 6% by mass, and particularly preferably 2 to 4% by mass.

[0017] Of the above ingredients, glycerin has the chemical formula C ３ H ８ O ３ The content of glycerin in the mousse composition of the present invention is 0.8 to 20% by mass, preferably 3 to 20% by mass, more preferably 3 to 17% by mass, and particularly preferably 5 to 15% by mass.

[0018] Of the above ingredients, triethanolamine has the chemical formula C ６ H １５ NO ３ The content of triethanolamine in the mousse composition of the present invention is 0.3 to 20% by mass, preferably 0.5 to 15% by mass, more preferably 1 to 10% by mass, and particularly preferably 1 to 3% by mass.

[0019] Of the above ingredients, cetanol has the chemical formula C １６ H ３３ OH. Cetyl alcohol is also known as cetyl alcohol or palmityl alcohol. The content of cetyl alcohol in the mousse composition of the present invention is 0.4 to 10% by mass, preferably 1 to 8% by mass, more preferably 1 to 5% by mass, and particularly preferably 1 to 3% by mass.

[0020] Of the above components, polyvinylpyrrolidone is a polymer compound formed by polymerization of N-vinyl-2-pyrrolidone, known as PVP. The content of polyvinylpyrrolidone in the mousse composition of the present invention is 0.1 to 10% by mass, preferably 0.1 to 6% by mass, more preferably 0.1 to 4% by mass, and particularly preferably 0.2 to 1% by mass.

[0021] Among the above components, ceteareth-20 is an ether obtained by ether-bonding cetearyl alcohol with ethylene oxide (approximately 20 moles), and is known as polyoxyethylene cetostearyl ether. The content of ceteareth-20 in the mousse composition of the present invention is 0.1 to 10% by mass, preferably 0.1 to 7% by mass, more preferably 0.1 to 4% by mass, and particularly preferably 0.2 to 2% by mass.

[0022] Among the above ingredients, tetrasodium ethylenediaminetetraacetate has the chemical formula C １０ H １２ N ２ O ８ Na ４ and is known as tetrasodium edetate, or EDTA-4Na. The content of tetrasodium ethylenediaminetetraacetate in the mousse composition of the present invention is 0.04 to 10% by mass, preferably 0.1 to 7% by mass, more preferably 0.1 to 4% by mass, and particularly preferably 0.2 to 1% by mass.

[0023] Of the above ingredients, aloe vera gel is a gel made primarily from aloe vera leaves, and any aloe vera gel used in cosmetics can be used without any particular restrictions. The content of aloe vera gel in the mousse composition of the present invention is 0.09 to 10% by mass, preferably 0.1 to 6% by mass, more preferably 0.1 to 3% by mass, and particularly preferably 0.5 to 1% by mass.

[0024] Of the above components, organic calcium can be produced, for example, based on the description in paragraphs

[0014] to

[0023] of Japanese Patent No. 7114235, which will be described in detail below.

[0025] An example of a manufacturing apparatus for producing organic calcium is shown in Figure 1. This manufacturing apparatus is equipped with an airtight chamber 1 (heating chamber) that does not allow air to enter, a pipeline having an inert gas injection valve 2 such as nitrogen or argon (hereinafter, the case where nitrogen is used as the inert gas will be described), and a pyrolysis gas exhaust valve 3. A heater 4 is incorporated as a heat source for raising the temperature inside the airtight chamber 1 to a predetermined level. The manufacturing apparatus further includes a cartridge 5 for removing the produced organic calcium, which has the same atmosphere (nitrogen atmosphere) as the airtight chamber 1, and a support table 6 on which the calcium raw material is placed. The cartridge 5 is detachably attached to the airtight chamber 1. In Figure 1, reference numeral 7 denotes a shutter provided at the entrance / exit of the airtight chamber 1, which, when closed, maintains the airtight chamber 1 in an airtight or nitrogen atmosphere. Reference numeral 8 denotes a lid or door provided on the cartridge 5, which, when closed, maintains the cartridge 5 in an airtight or nitrogen atmosphere.

[0026] Next, the manufacturing operation (steps) of organic calcium will be explained. In this specification, in order to distinguish between calcium in the raw material stage before the completion of thermal processing and calcium in the product stage after the completion of thermal processing, the former will be referred to as "calcium raw material" and the latter as "organic calcium." To manufacture organic calcium, first, the calcium raw material (seashells, crab bones, animal bones, teeth, tusks, etc.) is placed on a support table 6 and loaded into an airtight chamber 1 equipped with a heater 4. Next, nitrogen is injected through the nitrogen injection valve 2, and simultaneously, the air inside is discharged through the pyrolysis gas discharge valve 3, creating a nitrogen atmosphere inside the airtight chamber 1 and cartridge 5, which are then heated by the heater 4. This manufacturing process will be explained step by step.

[0027] 2 is a diagram illustrating the steps of heat treatment for producing organic calcium. Each step of the process for producing organic calcium is carried out in the following order.

[0028] First stage: As shown by block 11 in Figure 2, the calcium raw material is introduced into the heated airtight chamber 1. Once the introduction is complete, the heat source is activated, and the airtight chamber 1 begins to heat from room temperature using the heater 4. The process from introducing the calcium raw material to the initial heating stage takes approximately 30 minutes. During this time, the temperature inside the airtight chamber 1 rises from 100°C to 200°C. However, this is merely a rough guideline, and the temperature remains in the low-temperature range due to the relatively slow operation. Therefore, the numerical values ​​representing the time and temperature are not limited. At the same time, the air (oxygen and other gases) and moisture inside the airtight chamber 1 are evacuated, while an inert gas such as nitrogen 20 or argon 21 is introduced to replace the air 22 previously present in the airtight chamber 1 with the inert gas. This gas replacement process takes approximately 50 minutes. By this process, the gas inside the airtight chamber 1 is almost completely replaced with the inert gas, creating an oxygen-free atmosphere, and the calcium raw material is completely dried.

[0029] Second stage: As shown by block 12 in Fig. 2, while maintaining the oxygen-free atmosphere inside the airtight chamber 1, the completely dried calcium raw material is further heated using the heater 4, and the temperature is gradually increased to 300-450°C to thermally decompose the components contained in the calcium raw material. This temperature of 300-450°C is an intermediate temperature that is much lower than the temperature at which the calcium raw material is calcined, but in this manufacturing process, it is important to control the heating operation to increase the temperature to this level and not to increase it any higher. This heating operation takes about 120 minutes. The time for this heating operation (about 120 minutes) is merely a rough guideline and indicates that the heating operation is relatively slow, and is not limited to the numerical value representing the time.

[0030] Third stage: As shown by block 13 in Figure 2, heater 4 is stopped, low-temperature nitrogen is injected through nitrogen injection valve 2, and at the same time, high-temperature nitrogen gas inside is discharged through pyrolysis gas discharge valve 3, thereby cooling the inside of airtight chamber 1 and cartridge 5 to approximately 50°C to 100°C. This cooling operation takes about 120 minutes, and is continued until the temperature inside airtight chamber 1 reaches approximately room temperature. The time for this cooling operation (about 120 minutes) is merely a rough guideline and indicates that it is a relatively slow cooling operation, and is not limited to the numerical value representing the time.

[0031] 2, after the inside of the airtight chamber 1 and the cartridge 5 have been cooled to about 50 to 100°C, the organic calcium obtained by the above-mentioned heat treatment is moved together with the stand 6 from the airtight chamber 1 to the cartridge 5, the lid 8 of the cartridge 5 is closed, and the cartridge 5 is removed from the airtight chamber 1 while maintaining the inside of the cartridge 5 in a nitrogen atmosphere. The shutter 7 of the airtight chamber 1 is also closed to prepare for the next operation.

[0032] Organic calcium has the properties (characteristics) of a calcium material activated by heat treatment, and exhibits a variety of properties and functions.

[0033] Fifth Step: As shown by block 15 in Figure 2, the organic calcium removed from the airtight chamber 1 appears as a solid substance (powder) without alkaline properties. When the organic calcium produced in this manner is dissolved in water, the pH becomes neutral, between 7 and 8. Although this organic calcium appears as a solid substance (powder) as described above, it is not a crystalline solid substance. Rather, it consists of ultrafine particles, each of which contains a single calcium atom or 2 to 10 calcium atoms bonded in a chain-like structure. These ultrafine particles are irregularly aggregated together by atomic attraction, resulting in an amorphous structure. Furthermore, after completing the above steps, the organic calcium must be stored in a sealed cartridge 5 in a nitrogen atmosphere that prevents calcium oxidation in order to maximize its usefulness as a calcium material. Because the organic calcium stored in the cartridge 5 is not exposed to air, it does not react with oxygen or other substances.

[0034] The organic calcium that does not react with oxygen or other substances is then crushed into particles or ultrafine particles as needed. The crushing operation is performed using a crushing device such as a ball mill. Crushing of the organic calcium may be performed at any stage of the manufacturing process after the organic calcium is obtained. For example, it can be crushed to ultrafine particle sizes in an inert atmosphere at 450°C or less in the airtight chamber 1 before being sealed in the cartridge 6. Alternatively, it may be cooled to approximately 50°C to 100°C and then crushed to ultrafine particle sizes in an inert atmosphere in the airtight chamber 1. Furthermore, after the cooling, the organic calcium may be sealed in the cartridge 6, transported from the airtight chamber 1, and crushed using a ball mill. The fifth stage block 15 in Figure 2 shows the operating state at this stage.

[0035] The content of organic calcium in the mousse composition of the present invention is 0.1 to 5% by mass, preferably 0.1 to 4.5% by mass, more preferably 0.1 to 4% by mass, and particularly preferably 0.5 to 4% by mass.

[0036] In addition to the above essential ingredients, the mousse composition of the present invention preferably contains 1 to 10% by mass of dimethicone, 1 to 5% by mass of isopropyl myristate, 0.1 to 10% by mass of cetearyl alcohol, and 0.1 to 10% by mass of hydroxyethyl cellulose.

[0037] Among the above components, dimethicone is a linear siloxane polymer in which the ends of dimethylpolysiloxane are blocked with trimethylsiloxy groups, and is also known as methylpolysiloxane or highly polymerized methylpolysiloxane. The content of dimethicone in this mousse composition is 1 to 10% by mass, preferably 1 to 8% by mass, more preferably 2 to 6% by mass, and particularly preferably 4 to 6% by mass.

[0038] Of the above ingredients, isopropyl myristate has the chemical formula C １７ H ３４ O ２ The content of isopropyl myristate in this mousse composition is 1 to 5% by mass, preferably 1 to 4% by mass, and more preferably 1 to 3% by mass.

[0039] Among the above components, cetearyl alcohol is a mixture of monohydric and fatty alcohols (higher alcohols) composed of cetanol and stearyl alcohol, and is known as cetostearyl alcohol. The cetearyl alcohol content in this mousse composition is 0.1 to 10% by mass, preferably 0.1 to 7% by mass, more preferably 1 to 5% by mass, and particularly preferably 2 to 4% by mass.

[0040] Among the above components, hydroxyethyl cellulose is a cellulose derivative in which hydroxy groups at the 2-, 3-, and 6-positions of the glucose backbone of cellulose are randomly substituted with hydroxyethyl groups. The content of hydroxyethyl cellulose in this mousse composition is 0.1 to 10% by mass, preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, and particularly preferably 0.5 to 1.5% by mass.

[0041] In addition to the above essential ingredients, the mousse composition of the present invention preferably contains 1 to 10% by mass of dimethicone, 0.1 to 10% by mass of cetearyl alcohol, and 0.1 to 10% by mass of hydroxyethyl cellulose.

[0042] The content of dimethicone in this mousse composition is 1 to 10% by mass, preferably 1 to 8% by mass, more preferably 2 to 6% by mass, and particularly preferably 4 to 6% by mass.

[0043] The content of cetearyl alcohol in this mousse composition is 0.1 to 10% by mass, preferably 0.1 to 7% by mass, more preferably 0.1 to 5% by mass, and particularly preferably 0.1 to 4% by mass.

[0044] The content of hydroxyethyl cellulose in this mousse composition is 0.1 to 10% by mass, preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, and particularly preferably 0.3 to 1.5% by mass.

[0045] Furthermore, the mousse composition of the present invention preferably contains, in addition to the above essential components, 1 to 10% by mass of dimethicone and 0.1 to 10% by mass of hydroxyethyl cellulose.

[0046] The content of dimethicone in this mousse composition is 1 to 10% by mass, preferably 1 to 8% by mass, more preferably 2 to 6% by mass, and particularly preferably 4 to 6% by mass.

[0047] The content of hydroxyethyl cellulose in this mousse composition is 0.1 to 10% by mass, preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, and particularly preferably 0.3 to 1.5% by mass.

[0048] Furthermore, the mousse composition of the present invention preferably contains 0.1 to 10% by mass of cetearyl alcohol in addition to the above essential ingredients.

[0049] The content of cetearyl alcohol in this mousse composition is 0.1 to 10% by mass, preferably 0.1 to 7% by mass, more preferably 0.1 to 5% by mass, and particularly preferably 0.1 to 4% by mass.

[0050] All of the above-mentioned mousse compositions of the present invention preferably further contain one or more ingredients selected from the group consisting of preservatives, ultraviolet absorbers, antibiotics, fragrances, cell activating ingredients, vitamins, protective ingredients, cosmetic ingredients, solvents, and emulsion stabilizers. These may be added as appropriate depending on the intended use of the product.

[0051] Of the above components, known preservatives can be used, such as methylparaben, propylparaben, isopropylparaben, isobutylparaben, butylparaben, 2-phenoxyethanol, etc. These preservatives can be used alone or in combination of two or more.

[0052] Of the above components, known ultraviolet absorbers can be used as the ultraviolet absorber, such as ethylhexyl methoxycinnamate, octyl salicylate, and avobenzone. These ultraviolet absorbers can be used alone or in combination of two or more. In particular, by incorporating these ultraviolet absorbers into the mousse composition of the present invention, the composition is more effective against ultraviolet rays.

[0053] Of the above components, known antibiotics can be used as the antibiotic, for example, bacitracin zinc, etc. The antibiotics can be used alone or in combination of two or more.

[0054] Of the above components, known fragrances can be used as the fragrance, for example, natural fragrances, synthetic fragrances, etc. These fragrances can be used alone or in combination of two or more.

[0055] Of the above components, known cell-activating components can be used as the cell-activating component, such as allantoin, etc. The cell-activating components can be used alone or in combination of two or more.

[0056] Of the above ingredients, known vitamins can be used as vitamins, such as vitamin E, vitamin C, or derivatives thereof. These vitamins can be used alone or in combination of two or more.

[0057] Of the above components, known protective ingredients can be used as the protective ingredient, for example, petrolatum, mineral oil, etc. The protective ingredients can be used alone or in combination of two or more.

[0058] Of the above components, known cosmetic ingredients can be used as the cosmetic ingredient, such as ceramides, amino acids, etc. The cosmetic ingredient can be used alone or in combination of two or more.

[0059] Of the above components, the base (solvent) may be a known base, such as caprylic / capric triglyceride, etc. The base may be used alone or in combination of two or more.

[0060] Of the above components, known emulsion stabilizers can be used as the emulsion stabilizer, for example, stearyl alcohol, etc. The emulsion stabilizers can be used alone or in combination of two or more.

[0061] The mousse composition of the present invention as described above forms an excellent mousse, and by applying a required amount of this to the skin, it has excellent skin protection and skin metabolism promotion effects, and as a secondary effect, can improve the skin's barrier function.

[0062] The mousse composition of the present invention can protect against irritation to the skin, evaporation of moisture from the skin, etc. The irritation to the skin referred to here is not particularly limited, but examples thereof include physical irritation and irritation caused by ultraviolet rays, etc.

[0063] Furthermore, the skin metabolism that can be enhanced by the mousse composition of the present invention is not particularly limited, but examples include prevention of skin sagging and wrinkles by activating skin mitochondria, whitening and skin beautifying effects by promoting turnover of old skin, promotion of healing of wounds and inflammation, and rapid healing of sunburn.

[0064] Furthermore, the mousse composition of the present invention provides a secondary effect of improving the skin's barrier function, which is described in Patent Document 1 as being effective against harsh soaps, detergents, alcohol, oil, dirty grease, organic solvents, dyes, abrasives, acids, alkalis, bleach, chlorine, salt water, paints, and most chemicals. In addition to the above, the composition also provides protection against irritation caused by repeatedly washing hands with strong biocidal detergents. Furthermore, in addition to the above, the composition also provides protection against acids, corrosives, plating solutions, organic chemicals used in the manufacture of fiberglass and fiberglass products, lime, cement, grease, and other stains.

[0065] Furthermore, the mousse composition of the present invention can also improve foam stability. Here, foam stability means that the foam formed can maintain a certain level of foam height even after a predetermined time has passed, for example, maintaining 60% or more of the foam height at 0 minutes even after 15 minutes.

[0066] The mousse composition of the present invention can be prepared by mixing the above-mentioned ingredients in a mixer or the like in a conventional manner.

[0067] To form a mousse from the mousse composition of the present invention, it is preferable to combine it with a propellant. The propellant is not particularly limited as long as it is one that is commonly used in mousse compositions, and examples include isobutane, propane, liquefied petroleum gas, air, nitrogen, etc. These propellants can be used alone or in combination of two or more, with propane or a combination of isobutane and propane being preferred. The content of the propellant in the mousse composition of the present invention is not particularly limited, and is, for example, 2 to 12% by mass, preferably 2 to 10% by mass, more preferably 3 to 8% by mass, and particularly preferably 4 to 8% by mass.

[0068] The mousse composition of the present invention is placed in a foamer container or an aerosol container together with a propellant, and sprayed to form a mousse.

[0069] By taking this mousse in the palm of your hand and rubbing it into areas where skin protection or increased metabolism is required, it is absorbed into and onto the surface of the skin while maintaining normal skin function, creating an effective barrier function against chemical irritation, ultraviolet rays, and physical irritation.

[0070] Therefore, the mousse composition of the present invention can be used for various skin care purposes.

[0071] The present invention will be described in detail below by way of examples, but the present invention is not limited to these examples in any way.

[0072] Reference Example 1: Preparation of organic calcium: Organic calcium was prepared based on the description of paragraphs

[0014] to

[0023] of Japanese Patent No. 7114235. This organic calcium was highly chemically reactive because it was not combined with oxygen or other substances. Furthermore, when this organic calcium was dissolved in water, it showed a neutral pH of 7 to 8.

[0073] Example 1 Preparation of mousse composition: A mousse composition was prepared according to the following formula. The components, excluding the propellants isobutane and propane, were mixed in a mixer according to a conventional method, and then packaged together with the propellant in an aerosol container. For comparison, a mousse composition was prepared without using organic calcium (Comparative Example 1). The following tests were carried out on these mousse compositions.

[0074]

[0075] <Mitochondrial activation test> A mitochondrial activation test was carried out at 25°C according to standard methods. The mousse compositions of Example 1 and Comparative Example 1 were applied from an aerosol container to the back skin (shaved) of experimental mice, and 15 minutes later, skin cells from the target area were collected and fluorescently stained to evaluate the mitochondrial activation effect. A control mouse was also subjected to fluorescent staining without any application of any composition. The test results are shown in Figure 3. <Test results> The mousse composition of Example 1 had three times the mitochondrial activity compared to the mousse composition of Comparative Example 1, which does not contain organic calcium, demonstrating that the mitochondria in skin cells were activated.

[0076] <Transepidermal Water Loss Measurement Test> After spraying and rubbing disinfectant ethanol onto the back of the subject's hand, each sample was applied to the corresponding area and washed with water, and the amount of water lost from the skin was measured every unit time according to a standard method to evaluate the skin's protective function. In addition, a control was used in which the amount of water loss was measured without applying anything to the skin. The test results are shown in Table 2. <Test Results>

[0077] The mousse composition of Comparative Example 1, which did not contain organic calcium, had a high evaporation rate from the start and increased over time, whereas the mousse composition of Example 1, which contained organic calcium, had a low evaporation rate from the start and showed little change over time. In other words, it was found that the mousse composition of Example 1 was able to suppress evaporation of moisture from the skin.

[0078] <Foam Stability Test> The mousse compositions of Example 1 and Comparative Example 1 were sprayed from an aerosol container onto a flat hard surface, and the foam height was measured, and then the foam height after a specified time had passed was read to evaluate foam stability. The results are shown in Figure 4. <Test Results> The mousse composition of Example 1, which contained organic calcium, was able to maintain 60% or more of the initial foam height even 15 minutes after foam formation, but the mousse composition of Comparative Example 1, which did not contain organic calcium, was unable to maintain even 50% of the initial foam height even 15 minutes after foam formation.

[0079] The results of the mitochondrial activation test and the transepidermal water loss measurement test showed that the mousse composition of Example 1 provided significantly greater skin protection and skin metabolism enhancement than the organic calcium-free mousse composition of Comparative Example 1. It was also found that the foam stability of the mousse composition of Example 1 was significantly improved compared to the organic calcium-free mousse composition of Comparative Example 1.

[0080] Example 2 Preparation of mousse composition: A mousse composition was prepared according to the following formula. The components, excluding the propellants isobutane and propane, were mixed in a mixer according to a conventional method, and then packaged together with the propellant in an aerosol container. For comparison, a mousse composition was prepared without using organic calcium (Comparative Example 2). These mousse compositions were subjected to a mitochondrial activation test, a transepidermal water loss measurement test, and a foam stability test in the same manner as in Example 1.

[0081]

[0082] <Results of Mitochondrial Activation Test, Transepidermal Water Loss Measurement Test, and Foam Stability Test> The results of the mitochondrial activation test and the transepidermal water loss measurement test show that the mousse composition of Example 2 can significantly improve skin protection and skin metabolism promotion, to the same extent as in Example 1, compared to the organic calcium-free mousse composition of Comparative Example 2. Furthermore, the mousse composition of Example 2 can significantly improve foam stability, to the same extent as in Example 1, compared to the organic calcium-free mousse composition of Comparative Example 2.

[0083] Example 3 Preparation of mousse composition (for UV care): A mousse composition was prepared according to the following formula. All ingredients except the propellants, isobutane and propane, were mixed in a mixer according to a conventional method and then packaged together with the propellant in an aerosol container. For comparison, a mousse composition was prepared without using organic calcium (Comparative Example 3). These mousse compositions were subjected to a mitochondrial activation test, transepidermal water loss measurement test, and foam stability test in the same manner as in Example 1. Furthermore, an SPF measurement test and a UVAPF measurement test were performed as follows. The results are shown in Table 5.

[0084]

[0085] <Results of Mitochondrial Activation Test, Transepidermal Water Loss Measurement Test, and Foam Stability Test> The results of the mitochondrial activation test and the transepidermal water loss measurement test show that the mousse composition of Example 3 can significantly improve skin protection and skin metabolism promotion, to the same extent as in Example 1, compared to the organic calcium-free mousse composition of Comparative Example 3. Furthermore, the mousse composition of Example 3 can significantly improve foam stability, to the same extent as in Example 1, compared to the organic calcium-free mousse composition of Comparative Example 3.

[0086] <SPF Measurement Test> Equal amounts of the mousse compositions of Example 3 and Comparative Example 3 were applied from the sample containers to the upper forearm. After rubbing the mousse compositions into the arms, the SPF (sun protection factor) of the sunscreens against UVB (wavelength: 290 to 320 nm) irradiation was measured in accordance with ISO 24444 (ISO: International Organization for Standardization). The results are shown in Table 5.

[0087] <Test Results>

[0088] The mousse composition of Example 3 had a significantly higher sun protection factor than the mousse composition of Comparative Example 3 which did not contain organic calcium.

[0089] <UVAPF Measurement Test> Equal amounts of the mousse compositions of Example 3 and Comparative Example 3 were applied from the sample containers to the upper forearm. After rubbing the mousse compositions into the arms, the sun protection factor (UVAPF) against UVA (wavelength: 320 to 400 nm) irradiation was measured in accordance with ISO 24442 (ISO: International Organization for Standardization). The results are shown in Table 6.

[0090] <Test Results>

[0091] The mousse composition of Example 3 had a significantly higher sun protection factor than the mousse composition of Comparative Example 3 which did not contain organic calcium.

[0092] These results demonstrate that the mousse composition of Example 3 is useful for sun protection because the sun protection factor and sun protection factor are significantly higher than those of the mousse composition of Comparative Example 3 that does not contain organic calcium.

[0093] Example 4 Preparation of mousse composition (for UV care): A mousse composition was prepared according to the following formula. The components, excluding the propellants isobutane and propane, were mixed in a mixer according to a conventional method, and then packaged together with the propellant in an aerosol container. For comparison, a mousse composition was prepared without using organic calcium (Comparative Example 4). These mousse compositions were subjected to a mitochondrial activation test, transepidermal water loss measurement test, and foam stability test, as in Example 1. Furthermore, an SPF measurement test and a UVAPF measurement test were also performed, as in Example 3.

[0094]

[0095] <Results of Mitochondrial Activation Test, Transepidermal Water Loss Measurement Test, and Foam Stability Test> The results of the mitochondrial activation test and the transepidermal water loss measurement test show that the mousse composition of Example 4 can significantly improve skin protection and skin metabolism promotion to the same extent as in Example 1, compared to the mousse composition of Comparative Example 4 which does not contain organic calcium. Furthermore, the mousse composition of Example 4 can significantly improve foam stability to the same extent as in Example 1, compared to the mousse composition of Comparative Example 4 which does not contain organic calcium.

[0096] The results of the SPF measurement test and the UVAPF measurement test show that the mousse composition of Example 4 can have a sun protection factor and sun protection factor that are significantly higher than those of the mousse composition of Comparative Example 4 that does not contain organic calcium, at the same level as those of Example 3. Therefore, the mousse composition of Example 4 can be useful for sun protection.

[0097] The mousse compositions of Examples 1 to 4 all contained 55 to 90% by mass of water, 1 to 10% by mass of stearic acid, 1 to 10% by mass of coconut fatty acid, 0.8 to 20% by mass of glycerin, 0.3 to 20% by mass of triethanolamine, 0.4 to 10% by mass of cetanol, 0.1 to 10% by mass of polyvinylpyrrolidone, 0.1 to 10% by mass of ceteareth-20, 0.04 to 10% by mass of tetrasodium ethylenediaminetetraacetate, and 0.09 to 10% by mass of aloe vera gel. Furthermore, the inclusion of 0.1 to 5% by mass of organic calcium resulted in significantly better skin protection, increased skin metabolism, and foam stability than compositions without organic calcium, with the secondary effect of improving the skin's barrier function.

[0098] The mousse composition of the present invention can be used for various skin care purposes.

[0099] REFERENCE SIGNS LIST 1 Airtight chamber 2 Nitrogen injection on-off valve 3 Pyrolysis gas exhaust on-off valve 4 Pipe line 5 Cartridge 6 Support stand 7 Shutter 8 Lid (openable door) 20 Nitrogen 21 Argon 22 Air

Claims

1. A mousse composition comprising 55 to 90% by mass of water, 1 to 10% by mass of stearic acid, 1 to 10% by mass of coconut fatty acid, 0.8 to 20% by mass of glycerin, 0.3 to 20% by mass of triethanolamine, 0.4 to 10% by mass of cetanol, 0.1 to 10% by mass of polyvinylpyrrolidone, 0.1 to 10% by mass of ceteareth-20, 0.04 to 10% by mass of tetrasodium ethylenediaminetetraacetate, 0.09 to 10% by mass of aloe vera gel, and 0.1 to 5% by mass of organic calcium.

2. The composition for mousse according to claim 1, wherein the organic calcium has a pH of 7 to 8 when dissolved in water.

3. The mousse composition according to claim 1, further comprising 1 to 10% by mass of dimethicone, 1 to 5% by mass of isopropyl myristate, 0.1 to 10% by mass of cetearyl alcohol, and 0.1 to 10% by mass of hydroxyethyl cellulose.

4. The mousse composition according to claim 1, further comprising 1 to 10% by mass of dimethicone, 0.1 to 10% by mass of cetearyl alcohol, and 0.1 to 10% by mass of hydroxyethyl cellulose.

5. The mousse composition according to claim 1, further comprising 1 to 10% by mass of dimethicone and 0.1 to 10% by mass of hydroxyethyl cellulose.

6. The mousse composition according to claim 1, further comprising 0.1 to 10% by mass of cetearyl alcohol.

7. The mousse composition according to claim 1, further comprising a propellant.

8. A mousse composition according to any one of claims 1 to 7, further comprising one or more selected from the group consisting of preservatives, ultraviolet absorbers, antibiotics, fragrances, cell activating ingredients, vitamins, protective ingredients, cosmetic ingredients, bases, and emulsion stabilizers.

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