Wipe-off lotion composition

Abstract

To provide a stable composition for wiping lotion in which generation of a floating matter or sediment due to long-term storage does not occur while the composition has moisturizing effect or physiological activity by a component selected from amino acid, peptide and protein even in the case of compounding a water-soluble solvent extract containing much protein plant seed.SOLUTION: There is provided a wiping cosmetic composition in which a water-soluble solvent extract of plant seeds containing a component selected from amino acid, peptide and protein, and non-reducing saccharides are compounded. By further containing non-reducing saccharides, generation of a floating matter or sediment does not occur even if the composition is stored for a long period of time.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a lotion composition containing a water-soluble solvent extract of a plant seed, and more particularly to a wipe-off lotion composition characterized by combining a water-soluble solvent extract of a plant seed and non-reducing saccharides. [Background technology]

[0002] As skin ages, the stratum corneum (hereafter referred to as senescent keratin) that would normally be shed as dirt during normal metabolism often remains stubborn and remains. This senescent keratin is hard and dry, with significantly reduced moisturizing capacity. Senescent keratin also contains melanin, which should be excreted. Therefore, the stratum corneum as a whole becomes hard and thickened. As a result, the skin loses moisture and smoothness, and its appearance becomes dull and less transparent.

[0003] Well-known conventional beauty methods for removing aging keratin include dissolving keratin with cosmetics containing alkaline agents with a high pH, ​​exfoliating (peeling) keratin with α-hydroxy acids, and physically removing keratin with scrubs. However, these methods can irritate the skin or may directly damage it, making them unsafe.

[0004] Wipe-off lotions are particularly useful as cosmetic products that efficiently remove aging keratin with minimal stress on the skin. Wipe-off lotions are most effective when applied by soaking cosmetic cotton, gauze, nonwoven fabric, or the like with the composition and wiping it off the skin surface. This method of use has the effect of softening the skin through the hydration action of the lotion, thereby physically trapping and facilitating the removal of dirt. This allows for the easy removal of aging keratin and oxidized sebum adhering to the skin surface without placing a burden on the skin. Patent Document 1 discloses a wipe-off lotion focused on the skin-softening and aging keratin-removing effects, using a cosmetic cotton pad with an exfoliating wipe containing bamboo vinegar and arginine. Patent Document 2 also discloses a composition combining polyoxyalkylene methyl glucoside, ethanol, and grape seed extract in a specified ratio as a wipe-off lotion with sebum-removing and cheek-lifting effects.

[0005] In the field of cosmetics, including wipe-off lotion compositions, water-soluble extracts of plant seeds are incorporated for their excellent moisturizing effects and diverse effects due to their physiological activities. For example, the legume white bean (scientific name: Phaseolus coccineus L. var. albus Bailey) is known to have physiological effects such as keratin softening, exfoliation, and protein dissolving, in addition to its moisturizing effects, and to prevent and improve keratin thickening due to delayed turnover caused by aging, etc. (Patent Document 3). In addition to its excellent moisturizing effects, extracts from the seeds of the legume soybean (scientific name: Glycine max) are also known to have anti-pigmentation effects by inhibiting tyrosinase activity, anti-aging effects by promoting collagen synthesis, and sebum suppression effects by suppressing sebaceous glands. Job's tears extract, an extract from the seeds of the grass plant Job's tears (scientific name: Coix lacryma-jobi var. ma-yuen), is expected to have a variety of effects, such as moisturizing, cell activation, improving skin texture, and reducing stickiness during use to improve the feel of products. Rice (scientific name: Oryza sativa L.) seed extract is known to have anti-glycation effects.

[0006] The seeds of these plants require nutrients for germination and therefore contain higher amounts of amino acids, peptides, and proteins than other plant parts. Legume seeds, in particular, are known to contain 20-40% of these amino acids, and even some grass seeds contain more than 10%. Extracts containing components composed of amino acids, peptides, and proteins can be obtained by extracting these seeds using water, a water-soluble solvent, or a mixture thereof.

[0007] It is well known that because plant extracts contain many components, when they are incorporated into lotions, they are prone to forming floating matter and sediment due to the insolubilization of the components (Patent Document 4). In particular, when plant seed extracts containing amino acids, peptides, and proteins are incorporated, floating matter and sediment are even more likely to form. This tendency is particularly strong in legume seeds, which contain a lot of protein.

[0008] The causes of insoluble matter, which is the source of suspended matter and sediment in lotions, include (i) a decrease in the solubility of a substance due to a drop in temperature, causing substances that were dissolved before the temperature drop to become insoluble and precipitate, and (ii) insolubilization due to reactions within the component or with other components.

[0009] A common cause of sediment is, for example, the rise in water temperature during the production of lotion compositions due to the heat sterilization process and the heat of dissolution of water-soluble bases (e.g., ethanol, polyhydric alcohols, salts). This increases the solubility of the ingredients, improving their solubility. Because factories produce large quantities of lotions, they have a large heat capacity and require a long time for the temperature to drop. Because the temperature is high and the solubility is high, insoluble ingredients that would normally be removed during filtration may remain dissolved and not be filtered. As a result, as the temperature drops over time, the ingredients become insoluble, resulting in the formation of suspended matter and sediment. Furthermore, considering the storage temperature in the market, the drop in temperature in winter further reduces solubility, potentially resulting in the formation of sediment due to ingredients that remain undissolved. For example, in the case of a low-viscosity lotion, when insoluble matter forms, it aggregates and forms suspended matter. If the suspended matter has a higher specific gravity than water, it will concentrate at the bottom and form sediment.

[0010] Conventional methods for preventing the formation of suspended matter or sediment in lotion compositions during the manufacturing process include (1) filtering the composition after a certain period of time (such as the next day or later) after production, (2) storing the composition in a refrigerator and then filtering it, or (3) adding powder such as kaolin to act as nuclei for precipitation to promote precipitation, and then filtering the composition. However, these methods have the drawback of being time-consuming and complicated.

[0011] On the other hand, methods for preventing the formation of floating matter or sediment in lotion compositions from the formulation stage include (1) keeping the amount of the ingredients below their solubility. For example, the solubility of the ingredients at low temperatures is investigated and the amount is determined so that the ingredients do not become insoluble even at low temperatures, and (2) adding a solubilizer to increase the amount of solubility. For example, a common method is to solubilize insoluble matter by adding a high HLB surfactant such as polysorbate 20 or PEG-60 hydrogenated castor oil.

[0012] As a cause of sediment due to reactions within a component or with other components, polymers such as proteins and peptides can experience significant decreases in solubility due to inhibition of hydration and changes in their higher-order structure, depending on the medium in which they are dissolved. Furthermore, stabilization of the higher-order structure can take time, leaving problems such as floating matter and sediment due to insoluble matter over time. Possible causes of insolubility of polymers such as proteins and peptides with other components include a decrease in hydration due to the addition of salts and insolubility due to interactions with polymers such as polysaccharides. Furthermore, even if low-molecular-weight, highly water-soluble amino acids and peptides themselves are sufficiently water-soluble, their zwitterionic nature means they react easily with other polymers and electrolytes, causing insolubility. No effective solutions have been found for the formation of floating matter and sediment due to these causes.

[0013] A wipe-off lotion composition containing a dried white bean extract has been disclosed as a wipe-off lotion composition that contains a water-soluble extract of plant seeds and is expected to have an exfoliating effect without containing an alkaline agent in order to reduce the burden on the skin (Patent Document 3). However, the dried white bean extract contains a large amount of amino acids, peptides, and proteins, which react with other ingredients to produce insoluble matter, floating matter, and sediment.

[0014] On the other hand, wipe-off lotion compositions contain almost no oily ingredients, making them prone to dryness after application and unable to prevent moisture evaporation, leading to dry skin. Therefore, sugars, polyhydric alcohols, polyethers, and other hydrating agents are often formulated to prevent skin dryness. While sugars have a high hydrating effect and provide a moisturizing sensation, careful formulation is required because sugars rapidly increase in viscosity and become sticky, resulting in a poor texture when concentrated due to moisture evaporation after application. Trehalose is a non-reducing sugar and is used in the food industry as a safe sweetener, to inhibit the retrogradation of gelatinized starch, to prevent thermal denaturation of proteins, and to protect tissues during freezing and thawing (Non-Patent Document 1). However, these advantages are largely due to its ability to stabilize hydration in compositions with low moisture content. For example, trehalose is known to be effective in highly viscous, solid, or gel-like compositions, such as rice flour gels (water content approximately 50%) and unbaked bread dough (water content approximately 30-50%). (Patent Document 5, Non-Patent Document 2) There is no known effect of maintaining the solubility of ingredients contained in liquid compositions with a high water content, such as lotion compositions.

[0015] Thus, no useful formulation technology has been known for a stable composition that does not produce floating matter or sediment even after long-term storage, while still retaining the moisturizing effect and physiological activity of amino acids and / or peptides and proteins, even when formulated with a water-soluble solvent extract of plant seeds that are rich in protein. Furthermore, there was an urgent need to develop a wipe-off lotion composition that has a highly safe exfoliating effect that does not rely solely on acids or alkalis, and can easily remove sebum stains that have oxidized over time, without placing a burden on the skin. [Prior art documents] [Patent documents]

[0016] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-174525 [Patent Document 2] Japanese Patent Application Publication No. 2019-182804 [Patent Document 3] Japanese Patent Application Laid-Open No. 2017-95387 [Patent Document 4] Japanese Patent Application Laid-Open No. 2009-213419 [Patent Document 5] Japanese Patent Application Laid-Open No. 2007-195467 [Non-patent literature]

[0017] [Non-Patent Document 1] Kibi International University Research Bulletin (Medical and Natural Sciences) No. 29, 41-49, 2019 Development of Trehalose and Its Applications [Non-patent document 2] Food Research Institute Research Report No.67.1-8(2003) Functional evaluation of trehalose on fermentation characteristics and freezing tolerance of bread dough DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0018] The present invention aims to provide a stable wipe-off lotion composition that, when blended with an aqueous solvent extract of a protein-rich plant seed, exhibits moisturizing effects and physiological activity due to amino acids, peptides, and proteins, while not producing floating matter or sediment even after long-term storage. Furthermore, the present invention aims to provide a wipe-off lotion composition that is highly safe by reducing the amount of acid and alkali used to remove aging exfoliants, and that can easily remove sebum stains that have oxidized over time without placing a burden on the skin. [Means for solving the problem]

[0019] As a result of extensive research, the present inventors have discovered that, even when blended with an aqueous solvent extract of plant seeds containing amino acids, peptides, and proteins, the addition of non-reducing sugars can provide a stable wipe-off lotion composition that retains the moisturizing effects and physiological activities of the amino acids, peptides, and proteins, while not producing floating matter or sediment even after long-term storage, leading to the completion of the present invention. Furthermore, they have realized a wipe-off lotion composition that has a highly safe exfoliating effect that does not rely solely on acids or alkalis, and can easily remove sebum stains that have oxidized over time, without placing a burden on the skin.

[0020] That is, the present invention is a wipe-off lotion containing the following components (A) and (B). (A) Aqueous solvent extract of plant seeds (B) Non-reducing sugars A wipe-off lotion composition comprising: [Effects of the Invention]

[0021] According to the present invention, a lotion composition is provided that has moisturizing effects and physiological activity, and is stable even when blended with a water-soluble solvent extract of plant seeds containing amino acids, peptides, and proteins, and does not produce floating matter or sediment even after long-term storage.Furthermore, a wipe-off lotion composition is realized that has a highly safe exfoliating effect that does not rely solely on acids or alkalis, and can easily remove sebum stains that have oxidized over time without placing a burden on the skin. BEST MODE FOR CARRYING OUT THE INVENTION

[0022] The present invention will be described in detail below. In this specification, the symbol "to" means a range including the numerical values ​​before and after it. Furthermore, numerical values ​​expressed in % are % by mass unless otherwise specified.

[0023] The wipe-off lotion composition according to the present invention is a low-viscosity cosmetic composition whose main component is water. For example, a viscosity of 1000 mPa.s or less, which provides high fluidity, is suitable in terms of feel and ease of use.

[0024] The water-soluble solvent extract of plant seeds (Component (A)) contained in the wipe-off lotion composition of the present invention is not particularly limited in terms of the type of plant, but is incorporated to exert the effects derived from amino acids, peptides, and proteins.

[0025] Particularly preferred examples of component (A) include (A-1) Examples of plants used for the legume seed extract include white bean (Phaseolus coccineus L. var. albus Bailey), purple flower bean (Phaseolus coccineus L.), adzuki bean (Vigna Vigna angularis), chickpea (Cicer Cicer arietinum L.), mung bean (Vigna Vigna radiata), sword bean (Canavalia Canavalia gladiata), and soybean (Glycine max Merrill (Legum Inosae)). (A-2) Examples of plants used for the seed extract of non-legume plants include Job's tears (scientific name: Coix lacryma-jobi vai.ma-yuen) and rice (Oryza sativa L.). In particular, Job's tears coix seed extract, obtained by removing the seed coat, is preferably used. Other examples include Oenothera biennis, which is a plant of the Onagraceae family and the Oenothera genus.

[0026] Commercially available water-soluble extracts of these plant seeds include Flavosterone SB (manufactured by Ichimaru Falcos), a soybean seed extract (pure extract content: 0.4% by mass) obtained by adding 1,3 butylene glycol to an extract obtained by extracting soybean seeds (Glycine max Merrill (Legum Inosae) with water); Job's tears seed extract Coix lacryma-jobi vai.ma-yuen), a Job's tears seed extract (pure extract content: 2.5% by mass) obtained by extracting powdered seeds with the seed coat removed from the Job's tears (Coix lacryma-jobi vai.ma-yuen) with a 1,3 butylene glycol solution; and Oenothera biennis (Oenothera biennis), a plant extract from the Onagraceae family (Onagraceae). Examples include Luna White B (manufactured by Ichimaru Falcos Co., Ltd.), an extract of evening primrose seeds (purity of extract: 1.0% by mass) obtained by adding 1,3-butylene glycol solution to an extract obtained from the seeds of Evening Primrose biennis, dissolving the mixture, freezing it, and filtering it.

[0027] The extraction method for component (A) is not particularly limited, but extraction can be performed using an extraction solvent composed of water or components soluble in water at any ratio. Examples of extraction solvents include ethanol, butylene glycol, glycerin, etc., and mixtures thereof. Extractions containing acids or alkalis to adjust the pH, surfactants, salts, etc., are also included. The use of these water-soluble solvents can produce extracts containing amino acids, peptides, and proteins. For example, in the case of dried plant seeds, extraction is preferably performed using a 1 to 1000-fold, and particularly 10 to 100-fold, mass ratio of water-soluble solvent at 0°C or above, particularly 20°C to 40°C, for at least 1 hour, particularly 3 to 7 days. Furthermore, extractions under relatively mild conditions, such as heat extraction at 60 to 100°C for 3 hours, are preferred because they avoid the loss of the inherent amino acids, peptides, and proteins. The plant seed extract obtained under these conditions may be used as is, or, if necessary, may be further processed by adding high-concentration ethanol, ultrafiltration, or concentrated or powdered.

[0028] The amount of component (A) in the wipe-off lotion composition of the present invention may be an effective amount, generally 0.0001 to 10% by mass, and most preferably 0.001 to 1.0% by mass, calculated as the pure extract content of each agent relative to the total composition.

[0029] In the wipe-off lotion composition of the present invention, one or more types of component (A) can be used. By combining two or more types of component (A), when formulated into a lotion composition, sufficient moisturizing effect and improved usability can be achieved, and high effects such as prevention of rough skin and recovery of skin elasticity can be obtained. Furthermore, a wipe-off lotion composition containing a combination of legume seed extract and coix seed extract is suitable because, when used to wipe away aged keratin with cotton or the like, it provides excellent skin softening and keratin removal effects without irritating the skin.

[0030] Component (A) includes amino acids, peptides, or proteins that cause sediment formation. Methods for confirming the presence of amino acids, peptides, and proteins include, for example, the following. Ninhydrin reaction: A color reaction of amino groups When ninhydrin (2,2-dihydroxy-1,3-indandione) is added to a neutral aqueous solution of amino acids and heated, an oxidative deamination reaction occurs, producing aldehydes and Ruhemann's purple, resulting in a blue-purple color reaction (λmax 570 nm). Xanthoprotein reaction: Color reaction of amino groups When concentrated nitric acid is added and heated, it turns pale yellow.Furthermore, after cooling, when ammonia water is added to make it alkaline, it turns yellow-orange. In this case, the names protein, peptide, and amino acid differ depending on the degree of polymerization. Generally, a compound consisting of 50 or more commonly used amino acids is called a protein, and a compound consisting of less than 50 amino acids is called a peptide.

[0031] The non-reducing sugars (component (B)) contained in the wipe-off lotion composition of the present invention are sugars that do not have reducing properties. For example, when monosaccharides open their rings to form chain structures, they have aldehyde groups or ketone groups. Sugars that have these groups are called aldoses (e.g., glucose) and ketoses (e.g., fructose). Aldehyde groups have reducing properties, so aldoses are reducing. Normally, ketone groups are non-reducing because they do not exhibit reducing properties. However, ketoses containing a -CO-CHOH group are isomerized to aldoses via a structure called enediol through keto-enol tautomerism, resulting in reducing properties. Specific examples of the non-reducing sugars (component (B)) include trehalose and sucrose. Trehalose is particularly effective in preventing the formation of suspended matter and sediment. Furthermore, it is less sticky than sucrose, making it more comfortable to use and ideal.

[0032] The total content of the non-reducing saccharides (B) used in the present invention is preferably 0.05 to 5.0% by mass, more preferably 0.1 to 3.0% by mass, and particularly preferably 0.1 to 1.0% by mass, based on the total mass of the wipe-off lotion composition. By using this amount, even a low-viscosity lotion composition can adequately suppress the formation of floating matter and sediment due to the water-soluble solvent extract of plant seeds. To achieve a more effective suppression of floating matter and sediment, the blending ratio of the non-reducing saccharides (B) is preferably 1:1 to 1:500 (total extract pure content of the water-soluble solvent extract of plant seeds (A)):total mass of the non-reducing saccharides (B). This range allows for a wipe-off lotion composition that exhibits high keratin softening and anti-aging exfoliating effects without the addition of keratolytic agents such as acids or alkalis, which are harsh on the skin, yet is stable enough to prevent sediment formation even when stored at low temperatures. Furthermore, a wipe-off lotion composition can be obtained which is non-irritating to the skin, improves skin flexibility, and leaves the skin feeling good after use.

[0033] One or more types of non-reducing saccharides (B) used in the present invention can be used in the wipe-off lotion composition.

[0034] In addition to the above-mentioned essential components, the wipe-off lotion composition of the present invention may also contain, as necessary, components commonly used in cosmetics, such as surfactants, polyhydric alcohols, lower alcohols, pH adjusters, thickeners, water-soluble polymers, preservatives, chelating agents, medicinal ingredients, moisturizers, silicones, antioxidants, ultraviolet absorbers, salts, fragrances, and colorants, within qualitative and quantitative ranges that do not impair the effects of the present invention.

[0035] The wipe-off lotion composition of the present invention may further contain a water-insoluble oil. When an oil is added, it is homogenized by emulsification or solubilization using an emulsifier. Specifically, when an oil is added, it is contained in an amount of 1% or less of the total composition. [Example]

[0036] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.

[0037] [Plant extracts and sugars used in the test] (1) White bean seed extract*1 (pure extract: 0.6% by mass) (Adjustment method) The dried white beans were soaked in 20 times the amount of water per 1 part of the dried white beans. After allowing the white beans to absorb enough water, they were crushed and extracted for 3 hours while heating. After extraction, the mixture was filtered to remove insoluble matter, and then ethanol was added to make the ethanol concentration 70% (v / v). After leaving the mixture to stand, the precipitate was filtered and the solvent was distilled off. The mixture was then adjusted to a 30% 1,3-butylene glycol solution, left to stand, and filtered to obtain the white bean seed extract.

[0038] The following are commercially available products: (2) Soybean seed extract*2 Flavosterone SB (Ichimaru Pharcos) (3) Job's Tears Seed Extract*3 Coix Seed Liquid B (manufactured by Ichimaru Pharcos) (4) Evening Primrose Seed Extract*4 Luna White B (Ichimaru Pharcos Co., Ltd.) (5) Soybean seed protein hydrolysate*5 Promois WS-H (Seiwa Kasei Co., Ltd.) (6) Licorice leaf extract*6 Licorice leaf extract BG (Maruzen Pharmaceuticals) Fabaceae Licorice Glycyrrhiza glabra / Glycyrrhiza uralensis or other plants of the same genus (7) Kumazasa Leaf Extract*7 Falcorex Kumazasa E (manufactured by Ichimaru Falcos Co., Ltd.) Poaceae Kumazasa Sasa veitchii (8) Trehalose solution*8 Trehalose 30H (Ichimaru Pharcos Co., Ltd.) Non-reducing sugar / disaccharide (9) Sucrose*9 White Zarato AA (Mitsui Sugar Co., Ltd.) Non-reducing sugar / disaccharide (10) Glycerin*10 Concentrated glycerin (manufactured by Sakamoto Pharmaceutical Industry Co., Ltd.) (11) Methylgluceth-20*11 Macbiobride MG-20 (NOF Corporation) (12) Maltose*11 Sanmalto-S (manufactured by Sanwa Starch Co., Ltd.) reducing sugar / disaccharide

[0039] Low-temperature stability: After storing the product in a transparent polyethylene terephthalate container at 5°C for 3 months, the container was shaken slightly and visually inspected for the presence of sediment at the bottom. ◎: No sediment formation was observed ○: A small amount of sediment is visible at the bottom, but there is no problem with the appearance. △: Sediment can be seen at the bottom ×: A large amount of sediment is observed at the bottom

[0040] A cotton pad was soaked in an appropriate amount of the wipe-off lotion of each Example and Comparative Example, and used to wipe the face. A sensory evaluation by 20 female specialist panelists was conducted on the moisturizing effect, the degree of dirt on the cotton pad (sebum removal effect), and the softness of the skin after use (keratin softening effect), and the data were averaged and expressed on a four-level scale of ◎, ○, △, ×. The presence or absence of skin irritation was also reported by the same female specialist panelists through interviews and tabulated (Table 1).

[0041] [Table 1]

[0042] Effect of removing aging exfoliating cells: 20μL of each wipe lotion was soaked in a 1cm x 1cm nonwoven cloth (100% cotton, basis weight 30g / m2) and wiped onto the inside of the forearms of five healthy male volunteers (n=5). The removed keratinocytes were dispersed in 10mL of a 1% aqueous solution of Triton X. Exactly 5µL of each dispersion was taken, stained with a saturated methylene blue-rhodamine solution (1:1), and examined under a microscope to count the number of keratinocytes. The average cell count of the five volunteers was used as the evaluation. Evaluation criteria: number of keratinocytes (n=5 average value) ◎: 20 or more ○: 10 or more and less than 20 △: 5 or more but less than 10 ×: Less than 5

[0043] [Table 2]

[0044] Examples 1 to 11 were wipe-off lotions that were stable at low temperatures, did not produce sediment, and had excellent skin softening, exfoliating, and sebum-removing effects, while also being safe and non-irritating to the skin. In particular, Examples 1, 3, 5, 6, 8, and 10 combined white bean seed extract and Job's tears seed extract as water-soluble solvent extracts of plant seeds with trehalose as a non-reducing sugar. These wipe-off lotions had excellent exfoliating, exfoliating, and sebum-removing effects, and did not produce sediment when stored at low temperatures. Furthermore, they were wipe-off lotions that were highly rated in all aspects, including a pleasant feel and no skin irritation. Example 11, compared to Example 4, had a formulation in which the ratio of the total mass of pure seed extract to the mass of non-reducing sugars was 1:0.8. Example 11 was a problem-free formulation that solved all of the problems of the present application, but was slightly inferior in terms of low-temperature stability.

[0045] [Table 3]

[0046] Comparative Example 1 was prepared by omitting the non-reducing sugar (B) trehalose from Example 1 (sebum removal effect ◎, keratin softening effect ◎, and senescent exfoliation effect ◎ (keratinocyte cell count: 37.5). Like Example 1, Comparative Example 1 had good sebum removal effect, keratin softening effect, and senescent exfoliation effect (keratinocyte cell count: 36.1), and its effectiveness as a wipe-off lotion was good; however, a large amount of sediment was observed at the bottom due to low-temperature stability. Comparative Example 2 was prepared by adding 10 times the amount of polysorbate 20, a surfactant with high solubilizing effect, to the formulation of Comparative Example 1, but almost no improvement was observed in the sediment in low-temperature stability even with the increased amount of solubilizer. Comparative Example 3 was prepared by adding only (A-1) white bean seed extract as the water-soluble solvent extract of plant seeds from Example 1. The non-reducing sugar trehalose was omitted and the polyhydric alcohol (B') glycerin was added, but the generation of low-temperature stable sediment could not be prevented.

[0047] Comparative Example 4 did not contain a water-soluble solvent extract of plant seeds and contained the non-reducing sugar (B) trehalose. There were no problems with stability, but the sebum-removing effect, keratin softening effect, and aging exfoliation effect (keratinocyte count: 3.7) were poor. The sebum-removing effect was not noticeable, and the aging exfoliation effect was insufficient, making the composition unsuitable as a wipe-off lotion. Comparative Example 5 was the same as Example 1, except that the non-reducing sugar (B) trehalose was replaced with the polyhydric alcohol (B') glycerin. The wiping effect was good, but sediment was observed in the low-temperature stability. Comparative Example 6 contained the non-reducing sugar (B) trehalose, but instead contained the polyether derivative of glucose (B') methyl gluceth-20. Low-temperature stability was not improved, and sediment was observed.

[0048] In Comparative Example 7, (B) sucrose (non-reducing sugar / disaccharide) in Example 2 was replaced with (B') maltose (reducing sugar / disaccharide). Although no sediment was generated during low-temperature storage, the sebum-removing effect was evaluated as low, and poor appearance occurred after only three months of storage at room temperature. Comparative Example 8 was the same as Example 5 without the addition of sugars, and a large amount of sediment was observed at the bottom, despite the low-temperature stability. Comparative Example 9 was the same as Example 4, except that (A-1) white bean seed extract, a component with keratolytic effect, was replaced with L-arginine, which has a similar effect. The wiping effect was satisfactory. However, since (B) sucrose, a non-reducing sugar, was replaced with (B') glycerin, a polyhydric alcohol, Comparative Example 10 was the same as Example 4, except that (A-1) white bean seed extract, a component with keratolytic effect, was replaced with salicylic acid, which has a similar effect. The wiping effect was satisfactory, but sediment was generated during low-temperature storage, as in Comparative Example 9. Furthermore, in interviews with female panelists, many cases of stinging skin irritation thought to be caused by salicylic acid were reported, and it is believed that safety cannot be ensured on the market.

[0049] Comparative Example 11 was a composition containing (A-1') soybean seed protein hydrolysate, which had been hydrolyzed to reduce its molecular weight and improved solubility, and (B) trehalose, a non-reducing sugar. Although there was no sediment formation at low temperatures, the sebum-removing effect was poor. Comparative Example 12, in which the non-reducing sugar (B) trehalose was omitted from Comparative Example 11, also resulted in no sediment formation. This suggests that even with water-soluble plant seed extracts, the problem of preventing sediment does not exist if the water solubility is increased by chemical or biochemical depolymerization treatment. The (A-1') soybean seed protein hydrolysate used in Comparative Examples 11 and 12 contained a high concentration of low-molecular-weight components (protein hydrolysate), which made it very sticky during use and made it very sticky (tacky) when dried, resulting in an unfavorable feel after use.

[0050] In Comparative Example 13, (A-1) white bean seed extract was replaced with (A-1') licorice leaf extract, an extract from a part of the same legume family other than the seeds. The non-reducing sugar (B) trehalose was replaced with (B') glycerin, a polyhydric alcohol, resulting in sediment formation. However, (A-1') licorice leaf extract did not provide sufficient keratin softening or anti-aging exfoliating effects, making it unsuitable for a wipe-off lotion. Furthermore, the sebum-removing effect was not noticeable, and the moisturizing effect was also low. In Comparative Example 14, (A-2) Job's tears seed extract was replaced with (A-2') kumazasa leaf extract, an extract from a part of the same grass family other than the seeds. While minimal sebum-removing, anti-aging exfoliating effects were achieved, sediment formed during low-temperature storage, as in Comparative Example 13. In Comparative Example 15, the amounts of (A-1) white bean seed extract and (A-2) Job's tears seed extract were each reduced to 1 / 5, and (C) trehalose was not added. In this case, a larger amount of sediment was generated compared to other Comparative Examples in which (A-1) white bean seed extract and (A-2) Job's tears seed extract were added. This is also significant when compared to Comparative Example 16 in which (A) white bean seed extract was replaced with soybean seed extract. Therefore, it is believed that there is an interaction between (A-1) white bean seed extract and (A-2) Job's tears seed extract that makes sediment particularly likely to be generated. Therefore, even when (A-1) white bean seed extract and (A-2) Job's tears seed extract, in which sediment generation is significant, were used in combination, the generation of sediment was completely suppressed by the addition of (C) trehalose, a non-reducing sugar, demonstrating the effects of the present invention.

[0051] When compared with conventional wipe-off lotions whose main effect is to remove aging exfoliants, compositions containing keratolytic agents such as L-arginine and salicylic acid, the wipe-off lotion containing a combination of (A-1) white bean seed extract and (A-2) Job's tears seed extract, as in Example 1, which is the composition of the present invention, was found to have sebum removal effects, keratin softening effects, and aging exfoliation effects comparable to those containing keratolytic agents such as L-arginine and salicylic acid.

[0052] Formulation example 1: Viscous wipe-off lotion (1)Water 80.464% (2) 1,3-butylene glycol 7.0% (3) Ethanol 5.0% (4) White Bean Seed Extract*1 3.0% (5) Rice seed extract*12 1.0% (6) Trehalose solution*8 1.0% (7) PPG-6-decyltetradeceth-30 0.5% (8) PEG-20 sorbitan isostearate 0.5% (9) Ethylhexylglycerin 0.3% (10) Pentylene glycol 0.3% (11) Phenoxyethanol 0.3% (12) Job's Tears Seed Extract*3 0.3% (13) Hydroxypropyl methylcellulose 0.05% (14) Sodium Hyaluronate 0.05% (15) Tremella fuciformis polysaccharide 0.05% (16) L-Arginine 0.05% (17) Glycyrrhizic acid 2K 0.05% (18) Sodium bicarbonate 0.05% (19) Sodium carbonate 0.025% (20) Sodium metaphosphate 0.01% (21) Coptis Rhizome Extract 0.001% Rice seed extract*12 Oryza Polyamine-LC (BG30) (Oryza Oil & Fat Chemical Co., Ltd.) Poaceae (Rice) Oryza sativa L. (Gramineae)

[0053] Formulation Example 1 was a wipe-off lotion composition with high exfoliating and aging exfoliating effects. Furthermore, it was a highly stable composition that did not produce sediment even when stored at low temperatures. It was a wipe-off lotion composition that received high praise in all aspects, including a pleasant feel and no skin irritation. It contained Job's Tears seed extract, White Bean seed extract, and Rice seed extract, so in addition to the effects of a wipe-off lotion, it was also expected to have the effects of a protective lotion. Specifically, it was a lotion composition that could be used for a variety of purposes in addition to being used as a wipe-off lotion, such as preventing and moisturizing the thickening of keratin due to delayed turnover caused by aging, improving skin barrier function, having anti-allergic effects, cell activation effects, improving skin texture, promoting hair papilla cell proliferation, and anti-glycation effects.

Claims

1. Component (A) Water-soluble solvent extract of plant seeds Component (B) Non-reducing sugars Contains As the component (A), Component (A-1) legume seed extract, and Component (A-2) contains a plant seed extract derived from a plant of the Gramineae and / or Onagraceae families, A wipe-off lotion composition having a viscosity of 1000 mPa.s or less.

2. The component (A-1) is a legume seed extract containing soybean and / or white bean, The component (A-2) is a plant seed extract derived from a plant of the Gramineae family and / or Onagraceae family, Aqueous solvent extract containing one or more of Job's tears, evening primrose, and rice 2. The wipe-off lotion composition according to claim 1, wherein

3. 3. The wipe-off lotion composition according to claim 1 or 2, wherein the mass ratio of the total extract pure content of the (A) plant seed water-soluble solvent extract to the total mass of the (B) non-reducing sugars is 1:1 to 1:500.

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