JP7588914B1 - Cosmetic compositions, cosmetics, and soaps - Google Patents

Abstract

The present invention provides a cosmetic composition, cosmetics and soap capable of improving skin conditions, using horsetail, a plant that can be harvested in the vicinity.
[Solution] A cosmetic composition containing as an active ingredient a component derived from spores of Tsukushi, the spore stalk of Horsetail.
[Selected Figure] Figure 1

Description

Applicable under Article 30, Paragraph 2 of the Patent Act. Published on the website on July 2, 2023 (https://ambition.shop￣pro.jp/?pid=16104060)

Article 30, paragraph 2 of the Patent Act applies. Sold at the Fullsat commercial facility in Joetsu City, Niigata Prefecture on March 23 and 24, 2024.

Application of Article 30, Paragraph 2 of the Patent Act Published in the Kashiwazaki Nippo on February 10, 2024

Article 30, paragraph 2 of the Patent Act applies. Exhibited at the exhibition "Aim for a Hit! Regional Recommendations Selection 2024" held at Toranomon Hills Forum in Tokyo on January 25th and 26th, 2024.

The present invention relates to cosmetic compositions, cosmetics, and soaps.

Traditionally, consumers who use cosmetics have become more environmentally conscious, and in consideration of safety and effects on the skin, there is a growing need for cosmetics containing ingredients derived from natural materials. In light of this situation, for example, Patent Document 1 proposes a natural vegetable solid soap containing raw sesame oil and coconut oil as active ingredients. In addition, Patent Document 2 proposes a soap containing an extract of a plant of the genus Salacia and/or its finely ground product.

Registered Utility Model No. 3187672 JP 2012-255109 A

However, the natural materials used in Patent Documents 1 and 2 hardly grow naturally in Japan, and there has been a demand for cosmetics that are safe and good for the skin and use familiar plants that grow naturally in Japan.
The inventor created the present invention based on the experience of collecting horsetail (the spore stem of mugwort, hereinafter referred to as "horsetail") that grows wild in the mountains and fields, and then washing his hands with soap that had horsetail spores on them, only to find that his skin felt smooth and silky, something he had never felt before.

The present invention aims to provide a cosmetic composition, cosmetics, and soap that can improve skin conditions using horsetail, a plant that can be harvested in the surrounding area.

The cosmetic composition of the present invention contains as an active ingredient a component derived from the spores of horsetail, which is the spore stalk of horsetail, and the component derived from the spores of horsetail is a component obtained from spores separated from the spore stalk, and does not contain the spore stalk itself or an extract of the spore stalk .
In the above cosmetic composition, the component derived from horsetail spores may be an extract extracted from horsetail spores or crushed horsetail spores.
The cosmetic product according to the present invention contains the above-mentioned cosmetic composition.
The cosmetic composition may contain the horsetail spore-derived component obtained from 0.5 g or more of horsetail spores per 100 g of the cosmetic.
The soap according to the present invention is characterized by containing the above-mentioned cosmetic composition.
The soap may further contain horse oil.

According to the present invention, it is possible to provide a cosmetic composition, cosmetics, and soap that can improve the condition of the skin by using horsetail, a plant that can be collected in the vicinity.

FIG. 1 shows the results of a component analysis of horsetail spores.

The following describes an embodiment of the present invention. The present invention relates to a cosmetic composition containing a component derived from horsetail spores as an active ingredient, as well as cosmetics and soap containing said cosmetic composition. The present invention will be described below using as an example a soap containing an extract extracted from horsetail spores as an active ingredient, which is a component derived from horsetail spores.

The fern horsetail (Equisetum arvense) reproduces by spores. The stems of horsetail that are specialized for bearing and dispersing spores are called "Horsetails." "Horsetails" are also called the spore stems (or spore panicles, or sporophytes) of horsetails. What is usually called horsetail refers to the green vegetative stems and leaves that contain chlorophyll that grow after the horsetail has completed its role. Therefore, horsetail leaves do not have the sporangia that are found on the undersides of normal fern leaves.

The present invention is characterized in that it contains a component derived from horsetail spores as an active ingredient. In this embodiment, the component derived from horsetail spores can be configured to use horsetail spores themselves, or to use crushed horsetail spores. The component derived from horsetail spores can also be an extract extracted from horsetail spores. When crushed horsetail spores are used, the method for crushing the horsetail spores is not particularly limited, and methods such as ultrasonic crushing, enzyme treatment crushing, crushing by freezing and thawing, and mechanical crushing can be used. Furthermore, when an extract of horsetail spores is used, the method for extracting the horsetail spores is not particularly limited, and extraction can be performed at room temperature or under heat using only water, only an organic solvent, or a mixed solution of water and an organic solvent.

Horsetail spores can be collected from horsetails that grow wild in the mountains and fields. However, they can only be collected in the spring, and only about 200g can be collected from 8,000 horsetails (spore stalks), making them a rare material. As horsetail spores are a rare material, it is preferable to collect them using the following method in order to collect them efficiently.

That is, first, horsetails growing wild in the mountains and fields are picked and then dried for one to several days, after which the spore stalks are gently shaken to allow the spores to fall naturally and be collected. During this process, other debris besides the horsetail spores may also fall, so it is preferable to sift the spores and collect only the spores. Note that horsetail spores are light and may fly apart when sieving, so it is preferable to sift them in a large bag.

In addition, the soap according to this embodiment can contain other ingredients that can be generally contained in soap, so long as it contains the horsetail spore-derived ingredient as an active ingredient. In addition, although soap is exemplified in this embodiment, cosmetics other than soap can contain other ingredients that can be generally contained in the cosmetics. For example, the soap according to this embodiment can contain, in addition to the horsetail spore-derived ingredient, fats and oils such as horse oil and hardened palm oil, which are the main components of soap, alkalis such as sodium hydroxide and sodium chloride, and additives such as granulated sugar, trehalose, and hyaluronic acid. The fats and oils and alkalis are not limited to those mentioned above, and it is also possible to add fats and oils and alkalis that are publicly used in soap.

In addition to the above, it is also possible to include additives such as the following that are commonly used in soaps. For example, fatty acids such as lauric acid, myristic acid, palmitic acid, and stearic acid; aliphatic alcohols such as cetyl alcohol, stearyl alcohol, and cetostearyl alcohol; silicone oils such as cyclic silicone, dimethylpolysiloxane, and amino-modified polysiloxane; ester oils such as 2-ethylhexyl palmitate, tri(caprylic acid/capric acid)glyceryl, and isopropyl myristate; lower alcohols such as ethanol and isopropyl alcohol; polyhydric alcohols such as glycerin, diglycerin, propanediol, and dipropylene glycol; nonionic surfactants such as polyethylene glycol fatty acid esters, polyoxyethylene alkyl ethers, and alkanolamides; amphoteric surfactants such as fatty acid amidopropyl dimethylaminoacetate betaine, alkyl dimethylaminoacetate betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, fatty acid amidopropyl hydroxysulfobetaine, and hydroxyalkyl hydroxyethyl sarcosine; anionic surfactants such as alkyl ether sulfates and amide ether sulfates; hydroxyethyl cellulose, hydroxypropyl cellulose, polyethylene glycol, and the like. Water-soluble polymers such as ethylene glycol, polyvinyl alcohol, and carboxyvinyl polymers; moisturizing agents such as amino acids (DL-alanine, sodium aspartate, serine, proline, etc.), peptides and proteins (hydrolyzed silk, hydrolyzed elastin, hydrolyzed collagen, whey, etc.), sugars (glucose, sucrose, trehalose, etc.), and mucopolysaccharides (sodium hyaluronate, chondroitin sulfate, etc.); pH adjusters such as succinic acid, malic acid, tartaric acid, potassium hydroxide, and sodium hydroxide; isopropyl methylphenol, glycerin mono 2-ethylhexyl ether, hyaluronan, etc. Examples of the additives include bactericides such as kichiol; chelating agents such as tetrasodium ethylenediaminetetraacetate; antioxidants such as ascorbic acid and tocopherol; preservatives such as methyl parahydroxybenzoate, propyl parahydroxybenzoate, and phenoxyethanol; UV absorbers such as 2-ethylhexyl paramethoxycinnamate, oxybenzone, and homomenthyl salicylate; natural extracts derived from plants and animals such as angelica tree extract, grape leaf extract, and thyme extract; dyes such as safflower pigment and β-carotene; pigments such as zinc oxide and titanium oxide; and fragrances such as menthol, damask rose flower oil, and lavender extract. The additives can be used alone or in combination depending on the purpose.

Below, an example of a method for producing soap according to this embodiment is described. The soap according to this embodiment can be produced in the same manner as the production method for ordinary solid soap, except for the points described below.

First, a step of extracting horsetail spores is carried out to obtain a horsetail spore extract as a component derived from horsetail spores. The extraction method is not particularly limited, and a known method such as immersion extraction can be used. As an example, a horsetail spore extract can be obtained by immersing horsetail spores in a water-soluble solvent and extracting at 5 to 80°C, more preferably 20 to 30°C, for several hours to several tens of days.

The horsetail spores used for extraction may be the spores collected from the horsetail as they are, or the spores may be crushed. The horsetail spores may be dried by heating or freeze-dried. The extraction solvent is not particularly limited, but purified water or a water-soluble solvent made by mixing purified water with an organic solvent can be used. Examples of organic solvents used as the water-soluble solvent include methanol, ethanol, 1-propanol, 2-propanol, propylene glycol, 1,3-butylene glycol, 1,2-hexanediol, pentanediol, and glycerin, and these can be used alone or in a mixture of two or more kinds.

Then, the soap according to this embodiment can be produced by adding the extracted horsetail spore extract to materials that are generally used for soap. In this embodiment, as an example, soap is produced by the following method.

In this embodiment, sodium hydroxide and sodium chloride are added to a mixture of oils and fats such as horse oil and hardened palm oil, glycerin, and purified water, and the mixture is saponified by stirring at room temperature or under heat. Furthermore, a horsetail spore extract prepared in advance and additives such as trehalose, hyaluronic acid, and granulated sugar are added to the saponified material and mixed, then dried to prepare a soap base. The soap base is then mixed using a roll mill or the like, extruded into a rod shape using a plodder, and molded into a mold to produce a bar soap. The molded bar soap is then naturally dried, polished, and inspected (foreign matter inspection and pH value inspection) until it is ready for shipment.

In the soap according to this embodiment, the content of the component derived from horsetail spores is not particularly limited, but it is preferable that the soap contains the component derived from horsetail spores obtained from 10 g or more of horsetail spores per 100 g of soap, and more preferably, the soap contains the component derived from horsetail spores obtained from 15 g or more of horsetail spores per 100 g of soap. This is because, in the prototype stage, when the component derived from horsetail spores obtained from 10 g or more of horsetail spores was contained, the skin improvement effect when washed with the soap according to this embodiment was more obtained. Similarly, in cosmetics such as lotions, it is preferable that the component derived from horsetail spores obtained from 10 g or more of horsetail spores per 100 g of cosmetics, more preferably 15 g or more of horsetail spores per 100 g of cosmetics. The amount of spores per horsetail is about 0.25 g, and in the soap according to this embodiment, if one soap weighs 80 g, it will contain the spores of 56 horsetails.

(Production of soap containing components derived from horsetail spores)
STEP 1: Horsetail spores were immersed in a mixture of ethanol and purified water and extracted at room temperature (20-30° C.) for one day to obtain an extract of horsetail spores.
STEP 2: Sodium hydroxide and sodium chloride were added to a mixture of horse oil, hardened palm oil, and glycerin, and the mixture was stirred at room temperature to cause saponification.
STEP 3: The horsetail spore extract obtained in STEP 1 was mixed with trehalose, hyaluronic acid, and granulated sugar, and then dried to obtain a soap base. The amount of horsetail spore extract added was adjusted so that 17.5 g of horsetail spore extract was added per 100 g of soap.
STEP 4: The soap base prepared in STEP 3 was mixed in a roll mill, then extruded into a bar shape using a plodder, and molded into solid soap pieces weighing 80 g each.

(Component analysis of horsetail spores)
The horsetail spores were subjected to a component analysis by a third-party organization, the Food Analysis Center. Figure 1 shows the results of the component analysis of the horsetail spores. In this component analysis, as shown in Figure 1, the contents of potassium, total ascorbic acid (total vitamin C), total tocopherol (vitamin E), α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, and β-carotene were analyzed.

As a result of the analysis, as shown in Figure 1, it was found that the total tocopherol (vitamin E) content was high at 24.5 mg/100 g, and the α-tocopherol content in particular was high at 24.3 mg/100 g. α-Tocopherol is known to have antioxidant and blood circulation promoting effects, and is expected to be effective in preventing skin aging as well as rough skin such as acne and redness. In addition, it was found that the β-carotene content was also high at 4.47 mg/100 g. β-carotene is involved in collagen production and has the function of strengthening the skin and mucous membranes, and is also expected to have the effect of moisturizing and firming the skin.

In this example, only the above-mentioned components were analyzed, but when the soap according to this embodiment was used to wash the face or hands, the skin improved to become shiny and smooth, suggesting that there is a high possibility that components not analyzed in the above-mentioned component analysis results are involved in improving the skin. For example, horsetail itself is known to contain a high proportion of silicon, and it is expected that horsetail spores also contain a high proportion of silicon. Silicon has the effect of moisturizing the skin and maintaining firmness and elasticity, and it is believed that the effects of the present invention are achieved by the interaction of multiple such components.

(Sensory evaluation)
A monitor test was carried out on the solid soap used in the above-mentioned manufacturing method. Specifically, the monitor test was carried out in the following manner.
Subjects: 50 healthy adult women Usage period: 3 weeks Usage method: Wash your face with the soap of this embodiment once a day

In this way, 50 adult women were asked to use the soap according to this embodiment for three weeks and were asked about their impressions of their skin after use. As a result, 75% of the subjects answered that their skin's firmness and moisture had improved, and that they could expect an anti-aging effect. In addition, some monitors reported that on the second day of use, their skin had become lifted and their nasolabial folds had become thinner.

(Soap containing horsetail spores themselves)
The inventor also made a soap containing the spores of the fungus, and tried washing only the back of his hand with it. The inventor felt that the back of his hand became translucently white and that the skin texture had become smooth.

As described above, it has been found that the soap according to this embodiment has a skin-improving effect by using as an active ingredient a component derived from the spores of horsetail, which is the spore stem of horsetail. In particular, it has an anti-aging effect that gives the skin firmness and luster, and also makes the skin smooth and silky. Furthermore, in this embodiment, by using as an active ingredient a component derived from the spores of horsetail obtained only from the spores of horsetail, without including the spore stems of horsetail, it is possible to expect effects unique to horsetail spores, which contain high concentrations of α-tocopherol, β-carotene, etc., and are also likely to improve unknown skin conditions other than those mentioned above.

The above describes preferred embodiments of the present invention, but the technical scope of the present invention is not limited to the above description of the embodiments. Various modifications and improvements can be made to the above embodiments, and such modifications or improvements are also included in the technical scope of the present invention.

For example, in the above-mentioned embodiment, a solid soap was exemplified, but the present invention is not limited to this configuration, and the soap can be provided in liquid form as long as it contains a component derived from horsetail spores as an active ingredient. In addition, in the above-mentioned embodiment, the present invention is explained using soap as an example, but the present invention is not limited to soap, and can be applied to cosmetics such as milk lotions, creams, lotions, serums, gels, packs, and makeup cosmetics (for example, eye shadows, foundations, and lipsticks).

Claims (6)

The active ingredient is a component derived from horsetail spores, which are spores separated from the spore stems of horsetail .
The cosmetic composition wherein the component derived from the spores of horsetail is a component obtained from spores separated from the spore stalk, and does not contain the spore stalk itself or an extract of the spore stalk . The cosmetic composition according to claim 1 , wherein the component derived from horsetail spores is an extract extracted from horsetail spores or crushed horsetail spores. A cosmetic comprising the cosmetic composition according to claim 1 or 2 . The cosmetic product according to claim 3, which contains the horsetail spore-derived ingredient obtained from 0.5 g or more of horsetail spores per 100 g of the cosmetic product. A soap comprising the cosmetic composition according to claim 1 or 2 . The soap according to claim 5 , further comprising horse oil.