JP2002201120A - Skin care preparation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin care preparation having high moisture retention effect on the skin and stably keeping the moisture retention effect. SOLUTION: The skin care preparation having excellent moisture retention effect and moisture retention durability is produced by formulating fossil water. The amount of the fossil water is 0.1-80 wt.%, preferably 10-50 wt.%. The fossil water is different from circulating water such as ground water, ocean water and rain water and is water isolated from the circulation cycle. For example, it is water enclosed in a rock in the course of the formation of the rock, ancient rain water or ocean water present in a stratum below an impermeable layer, water generated by the formation of animal or vegetable fossils and water erupting together with petroleum or natural gas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an external preparation for skin containing fossil water, and more particularly to an external preparation for skin having a moisturizing effect and its durability.

[0002]

2. Description of the Related Art The stratum corneum of normal skin usually has a thickness of 10 to 20%.
% Moisture, and retains its elasticity, flexibility and protection function. However, when it becomes 10% or less due to changes in the external environment such as temperature and humidity, it becomes a state called dry skin. It is known that the skin loses its elasticity and protective function and causes various troubles. Therefore, conventionally, for the purpose of repairing or preventing such dry skin, a moisturizing agent or the like has been incorporated into an external preparation for skin.

[0003]

However, these moisturizing agents do not penetrate into the stratum corneum in normal skin, but remain on the skin, so that the moisturizing effect is weak and the effect is temporary. There was a drawback that it was a thing.

[0004]

Means for Solving the Problems The present inventors have conducted intensive studies to obtain a skin external preparation having a moisturizing effect and its sustainability. As a result, when fossil water is added, the moisturizing effect and the sustainability of the effect are obtained. Increased, and completed the present invention.

[0005] That is, the present invention is an external preparation for skin characterized by containing fossil water.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail.

The fossil water (Fossil Wa) referred to in the present invention
Ter) refers to water that is distinct from the current cycle of groundwater, marine water, and stormwater, unlike the water in a cyclical cycle. For example, water trapped in rocks during the formation of rocks, rainwater or marine water that has fallen in ancient times exists below the stratum called an impermeable layer, and water generated during the formation of animal and plant fossils , Oil, and water that comes out with natural gas. The impermeable layer is a term used in geology and the like, and refers to a layer in which a deep underground layer is compressed by pressure to decrease the permeability of fluids and the like and impervious to groundwater, natural gas, and the like. Generally, the geology is clayey in many cases, and it becomes a hard layer like rock.
Fossil water is isolated from the circulation cycle for a long time, so it is not diluted by rainfall, etc., further deep underground,
Since it exists under high pressure, unlike purified water, it may contain a high concentration of minerals. Also, fossil water is usually water that has not yet undergone a nuclear test and is not affected by radiation because it is isolated from the circulation cycle. Fossil water is also known as stratum water (Foma)
Tion Water).

The fossil water of the present invention includes, for example, fossil water obtained from a stratum below 2,000 m underground in Adachi-ku, Tokyo and fossil water obtained from the Ghawar oil field in the Kingdom of Saudi Arabia. Table 1 shows the analysis results for each mineral.
Shown in

[0009]

[Table 1]

[0010] The content of fossil water in the external preparation for skin of the present invention is not particularly limited, but is preferably 0.1 to 80.
%, More preferably 10 to 50%. If the amount is less than 0.1%, the effect of the present invention may not be sufficiently exhibited, and even if the amount exceeds 80%, no further increase in the effect can be expected.

The external preparation for skin of the present invention includes various components generally used as external preparations for skin, such as an oily component and a surfactant, in addition to the above-mentioned essential components, as long as the effects of the present invention are not impaired. Agents, humectants, ultraviolet absorbers, chelating agents, pH adjusters, preservatives, thickeners, pigments, pigments, fragrances, and the like can be appropriately compounded.

The oily component may be any known oily substance for skin external preparations such as fats, waxes, hydrocarbon oils, esters, silicone oils and the like. For example, solid oils and fats include palm oil, hardened tallow, hardened oil, hardened castor oil and the like. Examples of waxes include beeswax, candelilla wax, carnauba wax, lanolin, and liquid lanolin. Examples of the hydrocarbon oil include liquid paraffin, squalane, paraffin, ceresin, vaseline, and microcrystalline wax. Ester oils include isopropyl myristate, octyldodecyl myristate, and the like. Examples of the silicone oil include chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane;
Cyclic polysiloxanes such as decamethyl polysiloxane are exemplified.

As the surfactant, for example, anionic,
Any of cationic, amphoteric, nonionic natural and synthetic surfactants can be blended.

Examples of the water-soluble component include polyhydric alcohols such as 1,3-butylene glycol, ethylene glycol, glycerin, diglycerin, propylene glycol, dipropylene glycol, polyethylene glycol, polyglycerin, and polypropylene glycol, sodium alginate, xanthan gum, and the like. Water-soluble polymers such as methyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, carboxyvinyl polymer, polyvinylpyrrolidone, and gelatin are exemplified.

The external preparation for skin of the present invention can be produced by a known method, and the dosage form can be arbitrarily selected according to the purpose. For example, cream, emulsion, liquid, gel, ointment, pack Shape, stick shape, powder shape and the like.

[0016]

EXAMPLES Next, the effects of the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.

Embodiment 1 Lotion Prescription Formulation amount 1. Fossil water 40.0% (obtained from Ghawar oil field, Saudi Arabia) 2.1,3-butylene glycol 8.0 3. Glycerin 2.0 4. Xanthan gum 0.02 5. Citric acid 0.01 6. Sodium citrate 0.17. Ethanol 5.0 8. Polyoxyethylene hydrogenated castor oil (40EO) 0.1 9. Appropriate amount of fragrance 10. Adjust the total amount to 100 with purified water.

Production method: Components 1 to 6, 10 and components 7 to 9
Are uniformly dissolved, and both are mixed and filtered to obtain a product.

Embodiment 2 Cream prescription compounding amount 1. 1. Fossil water 10.0% (obtained from a stratum below 1500m underground in Mihama Town, Aichi Prefecture) Squalane 5.5 3. Olive oil 3.0 4. Stearic acid 2.05. Beeswax 2.0 6. Octyldodecyl myristate 3.5 7. 7. Polyoxyethylene cetyl ether (20EO) 3.0 Behenyl alcohol 1.5 9. Glycerin monostearate 2.5 10.1, 3-butylene glycol 8.5 11. Appropriate amount of fragrance 12. The total amount is adjusted to 100 with purified water.

Production method: Components 2 to 9 are heated and mixed,
Keep at 70 ° C to make oil phase. The components 1, 10, and 12 are dissolved by heating and mixed, and kept at 75 ° C. to form an aqueous phase. The aqueous phase is added to the oil phase, emulsified and cooled while stirring. Add ingredient 11 at 45 ° C. and cool to obtain a cream.

Embodiment 3 Emulsion Formulation Amount 1. 1. Fossil water 1.0% (obtained from a 2,500 m underground rock in Sendai City, Miyagi Prefecture) Squalane 5.0 3. Olive oil 5.0 4. Jojoba oil 5.0 5. Cetanol 1.5 6. Glycerin monostearate 2.07. 7. Polyoxyethylene cetyl ether (20EO) 3.0 8. Polyoxyethylene sorbitan monooleate (20EO) 2.0 Dipropylene glycol 1.0 10. Glycerin 2.0 11. Appropriate amount of fragrance 12. The total amount is adjusted to 100 with purified water.

Production method: Components 2 to 8 are heated and mixed,
Keep at 70 ° C to make oil phase. Components 1, 9, 10, and 12 are dissolved by heating and mixed, and the mixture is kept at 75 ° C to form an aqueous phase. The aqueous phase is added to the oil phase, emulsified and cooled while stirring. Add Component 11 at 45 ° C. and cool to obtain an emulsion.

Embodiment 4 Gel Formulation Amount 1. 1. Fossil water 0.1% (obtained from the stratum below 2000m underground in Adachi-ku, Tokyo) Ethanol 5.0 3. Polyoxyethylene hydrogenated castor oil (60EO) 0.14. Fragrance appropriate amount 5.1,3-butylene glycol 5.0 6. Glycerin 5.0 7. Xanthan gum 0.18. Carboxyvinyl polymer 0.2 9. Potassium hydroxide 0.2 10. Adjust the total amount to 100 with purified water.

Production method: Components 2 to 4 and components 1, 5 to 1
0 are uniformly dissolved, and the two are mixed and filtered to obtain a gel.

Embodiment 5 Pack Prescription Formulation amount 1. Fossil water 3.0% (obtained from Ghawar field, Saudi Arabia) Polyvinyl alcohol 12.0 3. Ethanol 5.0 4.1 1,3-butylene glycol 8.0 5.0. 5. Polyoxyethylene hydrogenated castor oil (20EO) 0.5 Citric acid 0.1 7. Sodium citrate 0.3 8. Appropriate amount of fragrance 9. Adjust the total amount to 100 with purified water.

Production method: Components 1 to 9 are uniformly dissolved and filtered to obtain a pack.

Embodiment 6 Foundation prescription Formulation amount 1. 1. Fossil water 0.5% (obtained from a stratum below 1500m underground in Mihama Town, Aichi Prefecture) Stearic acid 2.4 3. 3. Polyoxyethylene sorbitan monostearate (20EO) 1.0 4. Polyoxyethylene cetyl ether (20EO) 2.0 Cetanol 1.0 6. Liquid lanolin 2.0 7. Liquid paraffin 3.0 8. 8. Isopropyl myristate 6.5 Sodium carboxymethylcellulose 0.110. Bentonite 0.5 11. Propylene glycol 4.0 12. Triethanolamine 1.1 13. Titanium dioxide 8.0 14. Talc 4.0 15. Bengara 5.016. Appropriate amount of fragrance 17. Adjust the total amount to 100 with purified water.

Manufacturing method: Component 9 is well swelled in part of component 17, and the component dispersed in component 10 is added to the remaining component 17, followed by addition of components 1, 11 to 12, and uniform mixing. Water phase. Components 2 to 8 are heated and dissolved, and kept at 80 ° C. to form an oil phase. Components 13 to 15 are pulverized with a pulverizer, added to the aqueous phase, stirred with a homomixer and kept at 75 ° C. The oil phase is added to the aqueous phase while stirring, cooled, and the component 16 is added at 45 ° C, and cooled to 30 ° C with stirring to obtain a product.

The above Examples 1 to 6 all have a moisturizing effect,
It was an external preparation for skin with excellent moisturizing effect.

[0030]

The effects of the present invention will be described below. First, the water retention of fossil water alone is shown in Table 2, and the moisture retention effect and the moisture retention effect of the external preparation for skin are shown in Tables 3 to 5.
Are shown in Experimental Examples 1 to 12 and Comparative Examples 1 to 3.

Fossil water is expected to have a remarkable moisturizing effect compared to purified water. Therefore, the following tests were performed on the samples A to D. A: Fossil water obtained from the Ghawar oil field in the Kingdom of Saudi Arabia B: Fossil water obtained from a geological formation of 1500 m or less underground in Mihama-cho, Aichi Prefecture C: Fossil water obtained from rocks at 2500 m underground in Sendai City, Miyagi Prefecture D :purified water

(Water retention test) Dried pork skin (Aroask manufactured by Taiho Pharmaceutical Co., Ltd.) was cut into strips of about 50 mm × 10 mm, immersed in the sample for 20 minutes, and the water content of the dried pork skin at that time was saturated. The water content was determined. After wiping off the water on the surface of the dried pig skin, it was dried in a thermostat at 37 ° C. and a humidity of 22%, and after 10 minutes and 30 minutes, the weight was measured to calculate the water content. The results are shown in Table 2 with the residual water content after drying expressed as a percentage, with the saturated water content before drying being 100.

[0033]

[Table 2]

From the results shown in Table 2, it can be seen that all the fossil waters show a higher residual ratio than the purified water, suppress the evaporation of water, and have an excellent sustaining effect.

Next, skin external preparations formulated and designed as shown in Tables 3 to 5 were prepared, and the moisturizing effect and the moisturizing sustaining effect were evaluated by the following test methods.

(Evaluation of Moisturizing Effect and Moisturizing Sustained Effect) Ten persons were selected in advance as subjects by questionnaire survey as subjects who suffer from bulkiness due to dry skin. The subject was given an appropriate amount of an external preparation for skin to the part where the above-mentioned symptoms were concerned every day for 2 weeks, and evaluated on a 4-point scale according to the following criteria.
Tables 3 to 5 show the results. A: Significantly effective. ：: There is considerable effect. Δ: almost no effect. X: No effect.

[0037]

[Table 3]

[0038]

[Table 4]

[0039]

[Table 5]

From Tables 3 to 5 above, it can be seen that the skin external preparation containing fossil water has a high moisturizing effect and a high moisturizing sustaining effect.

Continued on front page (72) Inventor Satoru Satoru 2-7 Tomicho, Nishi-ku, Nagoya-shi, Aichi Japan F-term in Menard Cosmetics Co., Ltd. 4C083 AA011 AA012 AA082 AA122 AB032 AB232 AB242 AB432 AB442 AC022 AC072 AC102 AC122 AC182 AC242 AC302 AC352 AC392 AC432 AC442 AC542 AD092 AD112 AD272 AD352 AD512 CC02 CC04 CC05 CC07 CC12 DD27 DD31 DD41 EE12 4C087 AA01 AA02 BA01 NA14 ZA89

Claims (3)

[Claims] 1. An external preparation for skin characterized by containing fossil water. 2. The content of fossil water is 0.1 to 80% by weight.
(Hereinafter simply referred to as%). 3. The external preparation for skin according to claim 1, wherein the content of fossil water is 10 to 50%.