JP2009167106A - Cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic gentle to human skin by utilizing nature-derived limonite, and also the cosmetic capable of effectively utilizing an oxidation activity which the limonite has. <P>SOLUTION: This cosmetic is provided by containing the limonite or preferably having a 0.01 to 2 wt.% limonite content. More preferably, the cosmetic at least containing any one of oxidation inhibitors selected from trehalose, pulluran and hesperidin is provided. Further, preferably the cosmetic used for a pack cosmetic is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cosmetic, and more particularly to a cosmetic containing limonite.

Conventionally, cosmetics are made to contain a metal oxide or a metal hydroxide. The main usage of cosmetics containing such metal oxides or metal hydroxides is to conceal skin blotches and freckles as shown in Patent Document 1 or 2 below. There are a method of using it as a pigment, and a method of using it as a pack charge for removing keratin plugs and aged keratin as shown in Patent Documents 3 to 5.
JP 62-16408 A JP 2000-273352 A JP-A-9-104615 JP-A-9-110626 Japanese Patent Laid-Open No. 10-7523

  When used as a pigment, a metal oxide or a metal hydroxide is used as a coating material for coating mica particles or scaly substrates. Further, when used as a pack material, it is used as fine particles of metal oxide or metal hydroxide.

  On the other hand, limonite is known as containing a naturally derived metal oxide or metal hydroxide. Limonite is also called limonite and marsh ore, and contains a lot of minerals including iron oxide. Underwater, it absorbs and removes excess phosphorus in the water and adds useful minerals to the water. Have. For this reason, it has the function of activating the activity of bacteria necessary for water purification (degrading and removing algae and improving transparency) and promoting the purification of water.

In recent years, not only limonite is used as a soil conditioner and water purification agent, but also various uses are being found as animal feed additives and pet health supplements. The present inventor also pays attention to the excellent effect of limonite, and proposes using it as a part of the raw material of the bait in the following Patent Document 6.
International Publication No. WO2005 / 084433

The problem to be solved by the present invention is to provide a cosmetic material that is gentler to human skin using naturally derived limonite.
Moreover, it is providing the cosmetics which can utilize effectively the oxidation action which a limonite has.

  As means for solving the above-mentioned problems, the invention according to claim 1 is a cosmetic characterized by containing limonite.

  The invention according to claim 2 is characterized in that, in the cosmetic according to claim 1, the content of limonite is 0.01 to 2% by weight.

  The invention according to claim 3 is characterized in that the cosmetic according to claim 1 or 2 contains an oxidation inhibitor.

  The invention according to claim 4 is the cosmetic according to claim 3, wherein the oxidation inhibitor contains at least one of trehalose, pullulan, and hesperidin.

  The invention according to claim 5 is the cosmetic according to any one of claims 1 to 4, characterized in that the cosmetic is a cosmetic for a pack.

  According to the invention according to claim 1, since it is a cosmetic characterized by containing limonite, it is a raw material derived from nature, and it has the effect of limonite having a useful oxidizing action, is gentler to human skin, and has a cosmetic effect. High cosmetics can be provided.

  According to the invention of claim 2, since the content of limonite is 0.01 to 2% by weight, it is possible to provide cosmetics that are gentle on human skin while moderately suppressing the strong oxidizing action of limonite. It becomes.

  According to the invention of claim 3, since it contains an oxidation inhibitor, it is possible to provide a cosmetic that is gentle on human skin while further appropriately suppressing the strong oxidizing action of limonite.

  According to the invention of claim 4, since the oxidation inhibitor contains at least one of trehalose, pullulan, and hesperidin, the oxidation inhibitor itself is a raw material that is friendly to human skin, and effectively controls the oxidation action of limonite. It is also possible to do.

  According to the invention according to claim 5, since the cosmetic is a cosmetic for packs, it is possible to provide a cosmetic with high cosmetic effect that effectively promotes metabolism of human skin.

The cosmetic according to the present invention will be described in detail below.
The cosmetic of the present invention is characterized by containing limonite.
As mentioned above, limonite is also called limonite and marsh ore, and it contains many minerals including iron oxide, and it is produced all over the world. Especially, it is produced in the crater lake of Mt. Is rich in iron and is a suitable raw material for the cosmetic of the present invention.

  The limonite content in the cosmetic is preferably 0.01 to 2% by weight. If the content is lower than 0.01% by weight, the effectiveness of the active ingredient of limonite cannot be expected, and if it exceeds 2% by weight, the human skin is too irritating and can be used for a wide range of users. It is no longer suitable as a cosmetic.

  The cosmetic of the present invention preferably contains an oxidation inhibitor in order to control the oxidation action of limonite. In particular, it is more preferable that the oxidation inhibitor contains any of trehalose, pullulan, and hesperidin. It has been elucidated in the study by the present inventors that these oxidation inhibitors are raw materials that are gentle on human skin and effectively control the oxidation action of limonite.

  Trehalose is made by two functions of an enzyme that converts the reducing end of starch into a trehalose structure and an enzyme that releases a trehalose moiety. Trehalose is a non-reducing carbohydrate in which two glucose molecules are linked by α, α-1, and 1.

  Trehalose's oxidation-inhibiting effect is because trehalose is non-reducing and does not cause discoloration (Maillard reaction) even when co-heated with an amino acid (PH adjuster). is there. In addition, trehalose itself is the most stable saccharide among natural disaccharides against heat and acid, and since it is less colored and decomposed, it helps to stabilize the quality of cosmetics such as packs.

Pullulan is a natural polysaccharide obtained by culturing Aureobasidium pullulans, which is a kind of black yeast, using starch as a raw material, and maltotriose is regularly α-1,6-linked.
Pullulan has been confirmed to be safe in tests for acute toxicity, subacute toxicity, chronic toxicity, and mutagenicity, and is treated as an additive with no restrictions on use in Japan.
Pullulan dissolves quickly in both cold and hot water, and is insoluble in common organic solvents other than dimethylformamide and dimethylsulfoxide. In addition, the aqueous solution of pullulan has a relatively low viscosity as compared with other polysaccharides, has no property of gelation, and has a property of becoming a highly sticky solution. Moreover, it is hard to be influenced by pH and various salts.

  As an effect of suppressing the oxidation of pullulan, pullulan is excellent in film property and serves as a coating agent that oxidizes other materials by limonite. Pullulan is also used in food as a quality improvement and anti-aging improver, and it can also be expected to prevent deterioration of the quality of cosmetics such as packs.

  Hesperidin is particularly preferably glucosyl hesperidin (trade name: Hayashibara Hesperidin) having a structure in which one glucose molecule is α-glucoside-bonded to the glucose residue of Hesperidin provided by Hayashibara Microbiology Laboratories.

  As an effect of inhibiting the oxidation of hesperidin, there is an action that can effectively prevent the fading of the pigment, and therefore, the discoloration due to the oxidation exerted by limonite can be prevented. The above trehalose can be expected to be effective when heated, and hesperidin can be expected to be effective at normal temperature.

  Usually, the oxidation inhibitor (antioxidant) added to the cosmetic is to serve as an antioxidant against moisture in the cosmetic, but in the cosmetic of the present invention, as described above. Effectively suppresses the oxidation of limonite and maintains the oxidation of limonite, while bringing the pH close to around 6, making it difficult to cause allergic reactions to human skin as well as discoloration of the cosmetic itself. Can be expected.

  Since the cosmetics of the present invention are cosmetics with high beauty effects such as promoting the metabolism of human skin and purifying the skin, it is preferable to use them as packs.

  Various other additives can be added to the cosmetic of the present invention as necessary. For example, in order to enhance the moisturizing effect of the skin, a moisturizer is added, or limonite is contained in the cosmetic. In order to disperse homogeneously or to enhance the adhesion of the cosmetic to the skin, a dispersant, a gelling agent, and the like can be added as appropriate.

  It is also possible to produce an intermediate containing at least limonite and an oxidation inhibitor, and then add various additives to this intermediate and process it into a final product. In addition, this intermediate is also included. Of course, the content of limonite in the intermediate may be higher than 2% by weight, but if the content is adjusted to 0.01-2% by weight when processed into the final product, Considered within the technical scope of the invention.

One example of the cosmetic of the present invention was blended with the ingredients Nos. 1 to 7 shown in Table 1 and stirred and mixed to produce an intermediate. Next, item numbers 8 to 20 of the components shown in Table 1 were added to the intermediate, followed by stirring and mixing to obtain a final cosmetic product.
Further, Comparative Example 1 containing no limonite and Comparative Example 2 containing no pullulan, hesperidin S and trehalose were also produced in the same manner as in the Examples.

The cosmetics of Examples and Comparative Examples 1 and 2 were applied to the skin, allowed to stand for several minutes, and then washed off with water. When this operation was performed a total of 5 times every 1 hour, it was confirmed that the color of the skin, elasticity, and water retention were improved in the examples as compared with before treatment.
Moreover, the thing of the comparative example 1 was a grade which water retention increased somewhat, and the remarkable effect like an Example was not seen.
Furthermore, the thing of the comparative example 2 increased the redness of skin, and it was confirmed that there exists an excessive irritation | stimulation.

According to the present invention, it is possible to provide cosmetics that are more gentle to human skin by using naturally derived limonite.
In addition, it is possible to provide a cosmetic that can effectively use the oxidizing action of limonite.

Claims (5)

  Cosmetics characterized by containing limonite.   The cosmetic according to claim 1, wherein the limonite content is 0.01 to 2% by weight.   The cosmetic according to claim 1 or 2, further comprising an oxidation inhibitor.   The cosmetic according to claim 3, wherein the oxidation inhibitor contains at least one of trehalose, pullulan, and hesperidin.   The cosmetic according to any one of claims 1 to 4, wherein the cosmetic is a pack cosmetic.