JP2006176449A - Composition for cosmetic against ultraviolet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composition for a cosmetic against ultraviolet rays, having excellent characteristics for protecting the skin from the ultraviolet rays, simultaneously usable even for a person having the sensitive skin or causing allergic symptoms, hardly damaging the defence functions inherent in the skin, and hardly causing side effects; and to provide a method for producing the composition. <P>SOLUTION: The composition for the aqueous cosmetic against the ultraviolet contains (a) 2.5-30 wt.% microcapsules of a polysilicone including an ultraviolet absorber and having 0.02-3.5 μm average particle diameter, (b) 0.0001-0.1 wt.% astaxanthin and/or cantaxanthin-containing material, and (c) 0.01-10 wt.% viscous material containing hyaluronic acid or a salt thereof and/or ceramide. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a UV-resistant water-based cosmetic composition that is excellent in UV protection properties, particularly for sensitive skin, for protecting the skin from UV damage that increases due to destruction of the ozone layer in recent years.

  The adverse effects on the skin in daily life are mostly caused by active oxygen and lipid peroxide generated by ultraviolet rays. Ultraviolet light is divided into A, B, and C from the longer wavelength, which is close to visible light. The C-wave has a short wavelength of about 250 nm, has a large energy, and is said to cause skin cancer. Fortunately, it is almost absorbed before reaching the surface of the earth. A wave (wavelength is about 350 nm) and B wave (wavelength is about 300 nm) reach the earth's surface and adversely affect the skin as oxidizing power. The A wave reaches the inside of the skin and causes wrinkles, but the B wave burns the surface of the skin, causing a temporary light burn and a darkening of the color.

  Healthy skin has a self-defense function that protects the inside from external stimuli. However, the current situation is that the self-defense function alone cannot provide sufficient defense against the excessive stimuli resulting from environmental destruction in recent years. The main external stimulus is an oxidation reaction by ultraviolet rays. In order to prevent damage due to ultraviolet rays, an ultraviolet reflecting (scattering) agent such as titanium oxide and zinc oxide, an ultraviolet absorber such as a benzophenone derivative, etc. are useful (see Patent Documents 1 to 4). However, these UV reflectors and UV absorbers are still insufficient in properties such as the durability of UV protection, and both have an adverse effect on sensitive skin. Particularly, in the ultraviolet absorber, the portion that absorbs ultraviolet rays is a benzene nucleus, and the benzene nucleus gives allergic symptoms to people with sensitive skin.

In the case of cosmetics containing an ultraviolet reflector or ultraviolet absorber, problems such as stability, odor, and stickiness occur depending on the amount of cosmetics. Furthermore, when these are blended in a large amount, problems such as white floating at the time of application and a feeling of use such as poor spread occur.
JP-A-6-305949 Japanese Patent Laid-Open No. 7-145029 JP-A-8-259419 JP 2002-128646 A

  The present invention is excellent in the long-term protection property against ultraviolet skin, and can be used by people with sensitive skin and those who develop allergic symptoms at the same time, and does not impair the protective function of the skin and has less side effects. An object is to provide a water-based cosmetic composition and a method for producing the same.

  As a result of diligent and research in order to achieve the above object, the present inventor used a microcapsule containing a UV absorber and having a specific average particle diameter, and the microcapsule, An aqueous cosmetic composition containing an astaxanthin and / or canthaxanthin-containing substance and a viscous substance containing hyaluronic acid or a salt thereof and / or ceramide not only has extremely excellent UV protection, but also the composition. Has found that it can form a UV-resistant cosmetic composition with few side effects that can be used by people with allergic symptoms or sensitive skin.

  The reason why the cosmetic composition of the present invention exhibits such excellent properties is not necessarily clear, but is roughly estimated as follows.

  That is, in the water-based cosmetic composition of the present invention, the ultraviolet absorber is contained in microcapsules made of polysilicon and does not come into contact with the skin, so that it does not adversely affect people with sensitive skin. On the other hand, since the polysilicon of the material of the microcapsule is transparent to ultraviolet rays, the encapsulated ultraviolet absorber exhibits the original ultraviolet protection properties. However, the microcapsules encapsulating the ultraviolet absorber usually have an average particle diameter of several μm, so that gaps are formed between the particles, and ultraviolet rays pass through the gaps, so that ultraviolet protection is insufficient. In the present invention, the gaps between the microcapsule particles are uniformly filled in a jelly-like manner with a viscous substance containing hyaluronic acid or a salt thereof and / or ceramide containing an anti-oxidant astaxanthin and / or canthaxanthin-containing substance. . As a result, according to the cosmetic composition of the present invention, a thin and dense barrier film (layer) is formed, and the protective property of almost completely cutting off ultraviolet rays for a long time is increased.

  On the other hand, any of the substances containing astaxanthin and / or canthaxanthin, hyaluronic acid or a salt thereof, and / or ceramide forming the cosmetic composition of the present invention may impair the protective function inherent to the skin. No skin-friendly substance. Therefore, the cosmetic composition of the present invention can be used without problems even for people with sensitive skin and those who develop allergic symptoms.

Thus, the present invention has the following gist.
(1) Polysilicone microcapsules containing an ultraviolet absorber and having an average particle size of 0.02 to 3.5 μm: 2.5 to 30% by weight; (b) Substances containing astaxanthin and / or canthaxanthin: 0 And 0.1 to 0.1% by weight, and (c) a viscous substance containing hyaluronic acid or a salt thereof and / or ceramide: 0.01 to 10% by weight object.
(2) The ultraviolet-resistant water-based cosmetic composition according to (1), further comprising (d) 0.01 to 10% by weight of an antibacterial agent.
(3) The ultraviolet-resistant anti-water cosmetic composition according to (1) or (2) above, wherein the poly-silicone of (a) is a silicone-resinized polypeptide.
(4) The ultraviolet absorber of (a) is any one of the above (1) to (3), which is 2-ethylhexyl alkoxycinnamate and / or 4-t-butyl-4′-methoxydibenzoylmethane. UV sensitive cosmetic composition for sensitive skin.
(5) UV sensitive cosmetic composition for sensitive skin according to any one of (1) to (4) above, wherein the viscous substance of (c) is a mixture of hyaluronic acid or a salt thereof and / or ceramide and glycerin object.
(6) The ultraviolet-resistant cosmetic composition according to any one of (1) to (5) above, wherein the antibacterial agent of (d) is a linear alkylene diol or glycerol ether.
(7) (b) Astaxanthin and / or canthaxanthin powder and (c) a viscous substance containing hyaluronic acid or a salt thereof and / or ceramide are mixed in the presence of water, and then the remaining mixture is added to the remaining mixture. And (a) a microcapsule of a silicone encapsulating an ultraviolet absorber is added sequentially or simultaneously.
(8) The method for producing an ultraviolet-resistant cosmetic composition according to (7) above, wherein the viscous substance of (c) further contains glycerin.
(9) The method for producing an anti-water-based cosmetic composition for ultraviolet rays according to (7) or (8), wherein (d) the antibacterial agent is added at any time.

  According to the present invention, as will be seen in the examples described later, it has excellent protective properties against ultraviolet skin over a long period of time, and can be used even by people with sensitive skin and allergic symptoms at the same time. Provided are an anti-UV cosmetic composition with few side effects that does not impair the function and a method for producing the same.

  The polysilicon microcapsule encapsulating the ultraviolet absorber (a) contained in the ultraviolet anti-cosmetic composition of the present invention is obtained by microencapsulating a substance having ultraviolet absorptivity with a polysilicon material that transmits ultraviolet rays. Is. As the ultraviolet absorber in this case, any conventionally used substance can be used as long as it has no great irritation to the skin. Among them, in the present invention, it is preferable to use paramethoxycinnamic acid-2-ethylhexyl, methylene (bis-benzotriazoyltetramethylbutylphenol), 4-tbutyl-4'-methoxydibenzoylmethane, and the like. In the present invention, among the ultraviolet rays, 2-methoxyhexyl paramethoxycinnamate which is effective for absorption of B wave and / or 4-tbutyl-4′-methoxydibenzoylmethane which is effective for absorption of A wave. Are preferably used. In particular, it is preferable to use 2-methoxyhexyl paramethoxycinnamate and 4-tbutyl-4'-methoxydibenzoylmethane at a former / latter weight ratio of 6/1 to 4/1.

  As the polysilicon which is a material of the microcapsule, a silicone resinized polypeptide comprising a silicone part and a polypeptide part obtained by hydrolyzing collagen or silk protein is preferably used. This material is composed of one or more silylated peptides having two or more hydroxyl groups directly bonded to silicon atoms and one or more silane compounds in which two or more hydroxyl groups directly bonded to silicon atoms are formed by hydrolysis in a composition ratio of 5: A silylated peptide-silane compound copolymer obtained by condensation polymerization in an aqueous system in the range of 1: 1 to 1: 1 is preferable. The copolymer is described in JP-A No. 2002-121117.

  A known method of microencapsulation is used as a method of obtaining a microcapsule encapsulating the above-mentioned ultraviolet absorber by using such a silicone-resinized polypeptide material. As the microcapsules enclosing such an ultraviolet absorber, those commercially available as "Shirasoma (trade name of Seiwa Kasei Co., Ltd.)" can be used. In the present invention, as the microcapsules of the polysilicon encapsulating such an ultraviolet absorber, it is preferable to use a microcapsule in which the ultraviolet absorber is preferably encapsulated in an amount of 70 to 99% by weight, particularly preferably 85 to 95% by weight. When the ultraviolet absorber is less than 70% by weight, the ultraviolet protection properties are insufficient, and when the ultraviolet absorber is large, the strength of the microcapsules is lowered, which is not preferable.

  The average particle size of the microcapsules of the polysilicon encapsulating the ultraviolet absorber is also related to the ultraviolet protective properties of the composition of the present invention. In the present invention, the average particle diameter is 0.02 to 3.5 μm, preferably 0. The thickness is preferably 5 to 2.5 μm. Even when the average particle size of the microcapsules is smaller than the above range, or when the average particle size is larger, the ultraviolet protection properties are deteriorated.

  Polysilicone microcapsules encapsulating the ultraviolet absorber (a) are preferably contained in the cosmetic composition of the present invention in an amount of 2.5 to 30% by weight, particularly preferably 5 to 20% by weight. When the content of (a) is less than 2.5% by weight, the UV protection property is lowered. Conversely, when the content is more than 30% by weight, an odor is generated in some cases, and as a cosmetic product. It is not preferable because the characteristics such as touch and spread are deteriorated.

  The astaxanthin and / or canthaxanthin-containing substance (b) contained in the cosmetic composition of the present invention is usually a kind of natural carotenoid and is extracted from crustaceans, fish, or a culture of Hemascoccus alga. It is a substance also called hematococcus pigment. Although it has a form such as a free form, a monoester form, a diester form, etc., all have an antioxidant action, and any of them can be used in the present invention. These substances are usually available in the form of powder, granules, or oils or aqueous solutions containing these substances. In the present invention, for example, a powder obtained by mixing astaxanthin with an aqueous solution of a saccharide such as dextrin and spray-drying it is preferably used because it is easily dissolved or dispersed in water. Such a spray-dried powder can be obtained as a commercial product under the name “Astarize (trade name of Fuji Chemical Co., Ltd.)”.

  The (b) astaxanthin and / or canthaxanthin-containing substance is preferably 0.0001 to 0.1% by weight (1 to 1000 ppm), particularly preferably 0.0005 to 0 in the cosmetic composition of the present invention. 0.01% by weight (5 to 100 ppm) is contained. When the content of (b) is less than 0.0001% by weight, the ultraviolet protection property is lowered. On the contrary, when the content is large, the ultraviolet protection property reaches saturation and is not economical, and the composition is colored. This is not preferable in terms of cosmetic properties.

  In the cosmetic composition of the present invention, the viscous substance containing hyaluronic acid or a salt thereof and / or ceramide (c) is used as a medium for dissolving or dispersing the component (b) and is itself moisturizing. Has a function to moisturize the skin. Hyaluronic acid is preferably a sodium salt or potassium salt, and is excellent in effect as a viscous substance of the present invention. Ceramide, which is also called glycosylceramide, is a glycosphingolipid that is a complex glycolipid in which a hydrophilic saccharide is bound to ceramide, which is a skeleton structure. Glycosphingolipids are easily and uniformly dispersed in water and include mono- and tetrasaccharide-linked types. Fermented ceramide can be obtained as a natural product produced from microorganisms.

  Such a viscous substance containing hyaluronic acid or a salt thereof and / or ceramide is contained in the cosmetic composition of the present invention in an amount of 0.01 to 10% by weight, preferably 0.1 to 5% by weight. When the content of (b) is less than 0.01% by weight, sufficient UV protection properties cannot be obtained. Conversely, when the content is more than 10% by weight, the viscosity of the composition becomes strong and the touch is not good. Since it gets worse, it is not preferable.

  Further, the viscous substance (c) of the present invention may contain glycerin, collagen, sodium polyacrylate, sodium alginate, and carboxyl vinyl polymer in addition to hyaluronic acid or a salt thereof and / or ceramide. In particular, when 2 to 5 weights of glycerin are used in combination, it is particularly preferable because the composition has a higher moisturizing property as a cosmetic and a composition in which the components are more uniformly mixed can be easily obtained.

  The cosmetic composition of the present invention preferably further contains an antibacterial agent as the component (d). These antibacterial agents play a role of suppressing the generation of bacteria in the cosmetic composition containing the above (a) to (c), and increase the durability of the cosmetic composition of the present invention. As such an antibacterial agent, linear alkylene diols and / or glycerol ethers are preferable. Preferred examples of these include 1,3-butylene glycol, 1,2-pentyl glycol, 3-[(2-ethylhexyl) oxy] -1,2-propanediol, and the like. Of these, 1,2-pentyl glycol and 3-[(2-ethylhexyl) oxy] -1,2-propanediol are particularly preferable.

  The antibacterial agent (d) is preferably contained in the cosmetic composition of the present invention in an amount of 0.01 to 10% by weight, particularly preferably 1 to 5% by weight. When the content of (d) is less than 0.01% by weight, the antibacterial property is not sufficient. On the other hand, when the content is more than 10% by weight, the touch as a cosmetic is deteriorated.

  The cosmetic composition of the present invention is preferably prepared as follows using the components (a) to (c) and, if necessary, the component (d). That is, in the present invention, first, a powder having an average particle size of the astaxanthin and / or canthaxanthin-containing material (b) of preferably 0.05 to 1 μm is prepared, and this is prepared as hyaluronic acid or a salt thereof (c). And / or a ceramide-containing viscous material in the presence of water. As the viscous substance, glycerin is preferably used in combination as described above. In mixing, a mixer such as a homogenizer can be used as necessary.

  The resulting mixture has a form in which the (b) astaxanthin and / or canthaxanthin-containing substance is uniformly dissolved or dispersed in the viscous substance containing (c) hyaluronic acid or a salt thereof and / or ceramide. In the present invention, it is necessary to first mix (b) and (c) as described above. In such a case, a composition having excellent UV protection properties can be easily obtained.

  To the mixture of (b) and (c), the remaining water and the microcapsules of polysilicon encapsulating the ultraviolet absorber of (a) are added sequentially or simultaneously. In the case of simultaneously adding water and the polysilicon microcapsules encapsulating the ultraviolet absorber (a), a dispersion in which the microcapsules of the polysilicon encapsulating the ultraviolet absorber (a) are dispersed in water in advance. May be used. In addition, water may be added in a necessary amount at the same time, or may be added in divided portions. When these components are added and mixed, a mixer such as a homogenizer can be used as necessary.

  In the present invention, the water to be added is preferably purified water obtained by deionizing calcium or magnesium. The amount of water added is adjusted so that each of the components (a) to (c) constituting the cosmetic composition of the present invention has a content specified above.

  In the cosmetic composition of the present invention, the antibacterial agent (d) is preferably further added. Since the antibacterial agent is usually used in the form of an aqueous solution, the addition timing of the composition is not particularly limited, and may be performed in any of the processes of obtaining the mixture of (a) to (c).

  Thus, although the ultraviolet-resistant anti-water cosmetic composition of the present invention is prepared, in order to make the mixed state of each component more uniform, the obtained composition can be subjected to heat treatment or ultrasonic treatment. Further, the cosmetic composition of the present invention can be obtained in various viscosities depending on the water content in the composition, and can have a so-called emulsion type formulation to a cream type formulation. Among these, the viscosity of the ultraviolet light-resistant cosmetic composition of the present invention is preferably 0.1 to 100 Pas, and particularly preferably 5 to 20 Pas.

EXAMPLES Next, although an Example is given and this invention is demonstrated further more concretely, this is an illustration and does not restrict | limit this about the interpretation of this invention.
Example 1
"Preparation of sample solution"
The following samples 1 to 3 were prepared as the ultraviolet-resistant cosmetic water-based composition of the present invention.

Sample 1:
(B) Asteries powder (dextrin containing 0.01% by weight of astaxanthin, manufactured by Fuji Chemical Co., Ltd.) 0.4 g as component, and 10 g of glycerin and sodium hyaluronate 0.08 g as component (c) are sealed. The mixture was stirred for about 1 hour with the homogenizer in the state. Next, (a) component (2-ethylhexyl 2-methoxycinnamate and 4-t-butyl-4′-methoxydibenzoylmethane) as the component (a) was added to the mixture in a ratio of 91 (weight ratio). 7 g of a 55% by weight aqueous dispersion of microcapsules (trade name of Seiwa Kasei Co., Ltd., Silosoma MEA) having an average particle diameter of 2 μm encapsulated in weight% was added and stirred, and deionized water was added to the resulting mixture. The whole was made into a composition of 200 g (ultraviolet absorber: 7% by weight, astaxanthin: 0.002% by weight (20 ppm)).

Sample 2:
(B) It was prepared in the same manner as Sample 1 except that the component was not used.
Sample 3:
(A) It was prepared in the same manner as Sample 1 except that the component was not used.

"Evaluation methods"
The ultraviolet protection characteristics of each of the samples 1 to 3 were evaluated using the ultraviolet irradiation measuring apparatus shown in FIG. In this measuring apparatus, the polyacrylic acid soda solution is oxidized by ultraviolet rays, and its viscosity is quantitatively lowered. However, this measuring device utilizes the property of lowering the viscosity.

  In addition, 0.1 wt% aqueous solution of sodium polyacrylate was used as a standard solution, and 300 mL of this standard solution was also added to the samples 1 to 4 to be sample solutions 1 to 4, respectively. In FIG. 1, in the measuring apparatus 1, a 150 L stainless steel drum was used as a measurement container, and the ultraviolet irradiation lamp 2 was installed at the top. 300 mL of the standard solution and 500 mL of the sample solutions 1 to 5 are all put in a 500 mL polyethylene container, irradiated with ultraviolet rays using an ultraviolet irradiation device 3 (manufactured by Solartone Japan, wavelength 280 to 380 nm), and irradiation time The viscosity was measured with a rotational viscometer (rotation speed: 6 rpm). The standard solution was arranged at the center of the drum, and sample solutions 1 to 3 were arranged around it.

"Measurement"
Ultraviolet rays were irradiated, the standard solution and sample solutions 1 to 4 were taken out every 24 hours, the viscosity (Pas) was measured, the initial viscosity was set to 1, and the viscosity retention over time was determined. The results are shown in Table 1 and shown in FIG.

  As apparent from Table 1 and FIG. 1, the viscosity of each sample solution decreases with time, but the viscosity of the sample solution 1 which is an example of the present invention hardly decreases even after 100 hours. Compared to this, the decrease in viscosity in the sample liquid 2 (which does not include the component b) and the sample liquid 3 (which does not include the component a), which are comparative examples, is extremely large.

Example 2
In the same manner as in Example 1, the following sample liquids 11 to 14 were prepared as ultraviolet-resistant cosmetic water-based compositions. In such a composition, the content of the component (b) was kept constant at 0.002% by weight (20 ppm), and the amount of the component (a) was changed to examine the ultraviolet protection characteristics.

Sample solutions 11-14:
(A) As content of a component, 1 weight% (sample liquid 11), 2.5 weight% (sample liquid 12), 7 weight% (sample liquid 13), and 25 weight% (sample liquid 14), respectively is there.

"Evaluation method" and "Measurement"
According to Example 1, the standard solution and the sample solutions 11 to 14 were used, and the same ultraviolet irradiation measurement apparatus was used to irradiate the ultraviolet rays in the same manner. Was taken out, the viscosity (Pas) was measured, and the viscosity retention over time was determined. The results are shown in Table 2 and shown in FIG.

  As shown in Table 2 and FIG. 2, the viscosity of each sample solution decreases with time, and the ultraviolet protective effect of the sample solution 11 as a comparative example greatly decreases with time. On the other hand, the ultraviolet protection properties of the sample liquids 12 to 14 of the examples of the present invention are not so much reduced, and in particular, the sample liquids 13 and 14 are almost the same even after 100 hours. .

Example 3
In the same manner as in Example 1, the following sample liquids 21 to 24 were prepared as ultraviolet-resistant cosmetic water-based compositions. In such a composition, the content of the component (a) was kept constant at 7% by weight, and the amount of the component (b) was changed, and the ultraviolet protection property was examined.

Sample solutions 21-24:
As the content of the component (b), sample liquid 21 (0.00005 wt%: 0.5 ppm), sample liquid 22 (0.0005 wt%: 5 ppm), sample liquid 23 (0.002 wt%: 20 ppm), respectively. ) And% sample solution 24 (0.005 wt%: 50 ppm).

"Evaluation method" and "Measurement"
In accordance with Example 1, the standard solution and the sample solutions 21 to 24 were used, and the same ultraviolet irradiation measurement apparatus was used to irradiate the ultraviolet rays in the same manner. Was taken out, the viscosity (Pas) was measured, and the viscosity retention over time was determined. The results are shown in Table 3 and shown in FIG.

  As shown in Table 3 and FIG. 3, the viscosity of each sample solution decreases with time, and the ultraviolet protective effect of the sample solution 21 as a comparative example greatly decreases with time. On the other hand, compared with this, the ultraviolet protection characteristics of the sample liquids 22 to 24 of the examples of the present invention do not deteriorate so much. In particular, it can be seen that the sample liquids 23 and 24 are substantially the same even after 100 hours. .

Example 4
In Example 1, a sample solution as a cosmetic composition was prepared in the same manner as in Example 1 except that 4 g of fermented ceramide (manufactured by Kibun Food Co., Ltd.) was used instead of 4 g of hyaluronic acid Na.

  Using this sample solution, in accordance with Example 1, using the standard solution and the same UV irradiation measuring device, irradiating with UV rays in the same manner, taking out the standard solution and sample solution every 24 hours, and using the viscosity ( Pas) was measured to determine the viscosity retention over time. As a result, when the viscosity of the initial sample solution is 1, after 24 hours, 48 hours, 72 hours, 96 hours and 120 hours, 0.98 and 0.97, respectively. 0.95, 0.94, and 0.94.

Example 5
Ten monitors of Japanese women aged 25 to 40 years were selected as the ultraviolet light-resistant cosmetic composition of Sample Solution 1 of Example 1, and the effects of UV protection examples and the effects on the skin were tested.

The test was conducted in Naha City, Okinawa Prefecture, in August this year, which is lit by the midsummer sun. Sample solution 1 of Example 1 was applied to one arm of each monitor in an area of 20 cm ² and exposed to the other arm for 4 hours without being applied. As a result, in any of the monitors, the arm to which the sample solution was not applied had a feeling of exotherm at night and a sunburn phenomenon was observed on the next day. On the other hand, in any of the monitors, the heat-applied feeling and the sunburn phenomenon were hardly observed for the arm to which the sample solution was applied as described above.

  Regarding the influence of the sample liquid on the skin, it was confirmed that 9 out of 10 monitors had almost no effect on the skin, but one person showed some redness with itching on the skin. It was.

It is the schematic of the ultraviolet irradiation measuring apparatus used by this invention. The time-dependent change of the ultraviolet-ray protective effect of each sample in Example 1 is shown. The time-dependent change of the ultraviolet-ray protective effect of each sample in Example 2 is shown. The time-dependent change of the ultraviolet-ray protective effect of each sample in Example 3 is shown.

Explanation of symbols

1. 1. Ultraviolet measuring device 2. UV irradiation lamp UV4. Standard solution5. Sample solution

Claims (9)

  (A) Polysilicone microcapsules containing an ultraviolet absorber and having an average particle size of 0.02 to 3.5 μm: 2.5 to 30% by weight; (b) Substances containing astaxanthin and / or canthaxanthin: 0 And 0.1 to 0.1% by weight, and (c) a viscous substance containing hyaluronic acid or a salt thereof and / or ceramide: 0.01 to 10% by weight object.   Furthermore, (d) UV-anti-water type cosmetic composition of Claim 1 containing 0.01 to 10 weight% of antibacterial agents.   The ultraviolet-resistant water-based cosmetic composition according to claim 1 or 2, wherein the (a) polysilicone is a silicone-resinized polypeptide.   The ultraviolet light-resistant system according to any one of claims 1 to 3, wherein the ultraviolet absorber of (a) is 2-ethylhexyl 2-methoxycinnamate and / or 4-t-butyl-4'-methoxydibenzoylmethane. Cosmetic composition.   The UV-resistant water-based cosmetic composition according to any one of claims 1 to 4, wherein the viscous substance (c) is a mixture of hyaluronic acid or a salt thereof and / or ceramide and glycerin.   The antimicrobial agent for ultraviolet rays according to any one of claims 1 to 5, wherein the antibacterial agent (d) is a linear alkylene diol or glycerol ether.   (B) a powder of astaxanthin and / or canthaxanthin and (c) a viscous substance containing hyaluronic acid or a salt thereof and / or ceramide in the presence of water, and then the remaining water, And (a) A method for producing an ultraviolet-resistant water-based cosmetic composition, comprising sequentially or simultaneously adding polysilicon microcapsules encapsulating an ultraviolet absorber.   The method for producing an ultraviolet-resistant anti-water cosmetic composition according to claim 7, wherein the viscous substance of (c) further contains glycerin.   The method for producing an ultraviolet-resistant water-based cosmetic composition according to claim 7 or 8, wherein the antibacterial agent (d) is added at any time.

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