KR20150027975A - Cosmetic composition of water in oil emulsion with high salts - Google Patents

Abstract

The present invention relates to a water in oil cosmetic composition containing much salt. According to the present invention, the cosmetic composition comprises 4-12 parts by weight of salt. Salt is not existed in a recrystallization form such as a scrub product, but is completely dissolved in a cosmetic. The cosmetic composition has excellent sense of use and is effective in soothing various skin troubles.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic composition containing a large amount of salt,

The present invention relates to a water-in-oil type cosmetic composition containing a large amount of salt for realizing the effect of salt on the skin. More specifically, despite the large amount of salt, there is no problem of recrystallization causing the precipitation of salt and stability of the emulsion to be greatly deteriorated, and there is no problem of separation, and it is possible to maintain a good feeling of use and to provide a skin moisturizing effect and a soothing effect on various skin troubles And to an excellent salt-containing cosmetic composition.

From ancient times, salt has been used for a long period of time, when people ingested it, to remove toxins, to remove inflammation, to remove inflammation, to purify blood, to purify blood, to accelerate metabolism by excretion of waste products, It is well known that the antimicrobial action, the regulating action that maintains the balance of the blood pressure and the body weight, and the like are performed. Salt has a positive effect on the human body when applied to the skin as well as ingestion. It has been reported that the salt has better skin moisturizing power than urea, which is a natural moisturizing factor of the skin. Various kinds of skin trouble relief (skin soothing) It is also known to be effective for skin wastes removal and exfoliation, acne, wrinkles and atopy.

Various cosmetics have been developed due to the excellent effects of the salt. For example, Korean Patent Laid-Open No. 10-2010-0133711 (a scrub cosmetic composition containing salt and / or sugar), Korean Patent Laid-Open No. 10-2007-0091758 (Liquid cosmetic composition containing salt) and Korean Patent Laid-Open No. 10-1996-0021004 (cosmetic composition containing a large amount of salt) all relate to a cosmetic composition containing salt. However, these prior patents have not been developed as a cosmetic product containing a large amount of salt (in particular, 10.0 - 85.0 parts by weight) and dissolved in salt, but developed as a scrub product using salt precipitation. Also, Korean Patent Laid-Open No. 10-2005-0003880 (a method of manufacturing a cosmetic composition for improving atopic dermatitis containing Dead Sea salt) also provides scrub cosmetics when 20.0 parts by weight or more of dead sea salt is used (see Table 2) And 4.0 parts by weight or less of Dead Sea Salt (see Table 1). As described above, the salt of the skin is excellent in efficacy, and it is desired to use it as a cosmetic product. However, the scrub agent is applied on the skin unlike general cosmetics and it is difficult to continuously apply the effect. , The salt component is dissociated into water, so that the solubility of the surfactant is drastically reduced, so that even if the cosmetic preparation is not made or the preparation is made, separation is accelerated, which is unstable. In addition, if a large amount of salt is stabilized in a water-in-oil type cosmetic preparation, there is a problem that even though stabilization is achieved, the feeling of use is significantly deteriorated by the prior art.

Accordingly, a problem to be solved by the present invention is to provide a method for easily and easily delivering the effect of excellent salt to the skin, which comprises a large amount of salt but does not separate cosmetics, The daily cosmetics which can deliver the efficacy of the salt to the skin continuously (excellent moisturizing power for the skin, relieving various skin troubles (skin soothing), eliminating skin wastes and exfoliation, improving acne, wrinkles and atopy) .

In one aspect, the present invention provides a water-in-oil type cosmetic composition comprising 4 to 12 parts by weight of salt relative to the total weight of the composition of the present invention, wherein the salt is dissociated on the water.

A very small amount (2 parts by weight or less) of salt has been used in the composition for the purpose of lowering the freezing point of the water-in-oil type cosmetic composition for a long time and improving low-temperature storage stability. However, in order for the beneficial effects of the salt (moisturizing effect, dermatitis and exfoliation of the epidermis, and bacteriostatic effect) to be exhibited, a larger amount of salt should be contained in the composition. However, in a conventional water-in-oil type cosmetic or water-in-oil type cosmetic, a large amount of salt dissociates into water, drastically decreasing the solubility of the surfactant, thereby greatly lowering the stability of the salt. The preparation of a cosmetic composition containing salt was almost impossible. However, the inventors of the present invention have found that there is a method of containing a large amount of salt that can exhibit the effect on the skin, but not allowing the salt to precipitate and also making the salt water stable in the water even though it dissolves a large amount of salt in the water And completed the present invention.

In the composition according to the present invention, the salt comprises 4 to 12 parts by weight based on the total weight of the composition of the present invention. Preferably 4 to 10 parts by weight, more preferably 6 to 10 parts by weight, and most preferably 6 to 8 parts by weight. When the salt is used in an amount of less than 4 parts by weight, the salt does not exhibit an effective effect on the skin. When the salt is used in an amount of more than 12 parts by weight, There is a problem that falls significantly. Particularly, when the salt is used only as a refining salt or a disinfecting salt, it can dissociate to 12 parts by weight or more. However, it is difficult to dissolve 12 parts by weight or more of salt such as salt, tofan salt and natural salt. Therefore, it is more preferable to use 6 to 10 parts by weight in consideration of ease of production of cosmetics, stability of cosmetics, and efficacy on skin.

The salt may be at least one selected from the group consisting of natural salt, natural salt, refined salt, sun salt, toppan salt, remedial salt, rock salt or processed salt.

The term "dissociation" means that the salt dissolves and is separated. The salt dissolves in the water and is separated into ions, which means that the graininess of the salt crystals is lost.

In addition to salt, various water-soluble ingredients such as polyol, polymer compound, urea, moisturizing agent and the like which can show skin moisturization, nutrition, feeling of use, low temperature stability,

The water-soluble part includes 30 to 80 parts by weight based on the total weight of the composition of the present invention. If the water-soluble part is contained in an amount of less than 30 parts by weight, there is a problem that the feeling of use of the cosmetic composition is greatly deteriorated. If the water-soluble part is used in an amount exceeding 80 parts by weight,

The polyol has a moisturizing effect, and examples thereof include glycerin, dipropylene glycol, butyleneglycol, pentylene glycol, methylpropanediol, sorbitol, diglycerin, erythritol, pentaerythritol, polybutylene glycol- Polyglycerin-10, polyglycerin-20, polyglycerin-40, sorbes-5, sorbes-6, sorbes-20, sorbes-30, polyglycerin- Mannitol, lactitol, lactose, dihydroxypropyl PG-glucoside, dithiaoctanediol, fructose, glucamine, methylglucamine, glucose, 1, sorbitol-40, inositol, maltitol, maltose, mannan, mannitol, mannose, , 2-hexanediol, methylglucose-10, methylglucose-20, ozonized glycerin, phytantriol, thioglycerin, traitol, trimethylol propane or xylitol. The polyol may be a mixture of two or more kinds, or one type may be used alone.

In the composition according to the present invention, an oil may be further included.

The oil may be divided into a silicone type and a non-silicone type, and the non-silicone type may include esters, hydrocarbons, vegetable oils, and oils. The kind of the silicone oil is not particularly limited, and a conventional silicone oil used in the cosmetic composition may be used. For example, there may be mentioned, for example, cyclopentasiloxane, cyclohexasiloxane, cycloheptasiloxane, cyclomethicone, cyclophenylmethicones, cyclotetrasiloxane, cyclotrisiloxane, dimethicone, dimethicone, caprylimethicone, Hexyldimethicone, hexylmethicone, laurylmethicone, myristylmethicone, phenylmethicone, stearylmethicone, scaryldimethicone, trifluoropropylmethicones, A silicone-based fluid oil such as cetyldimethicone, dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, methyltrimethicone, and phenyltrimethicone, or a silicone-based crosspolymer dispersed in the oil, , Cetearyl dimethicone / vinyl dimethicone cross polymer, dimethicone cross polymer, dimethicone cross polymer-3, dimethicone / 10 cross polymer, dimethicone / phage-10/15 cross polymer, dimethicone / phage-15 cross polymer, dimethicone / phenyl vinyl dimethicone cross polymer, dimethicone / polyglyceryl- Dimethicone / silsesquioxane copolymer, dimethicone / vinyl dimethicone crosspolymer, dimethicone / silica crosspolymer, diphenyl dimethicone crosspolymer, lauryl dimethicone-15 crosspolymer, lauryl dimethicone / poly Glycerin-3 crosspolymer, vinyl dimethicone / lauryl dimethicone crosspolymer, and the like. The type of the non-silicone oil is not particularly limited, and conventional oils used in the cosmetic composition may be used. For example, there may be mentioned asbestos amides such as ascorbyl palmitate, ascorbyl linoleate, ascorbyl stearate, distearyl malate, benzyl benzoate, benzyl laurate, butylene glycol dicaprylate / dicaprate, butylene glycol diisononanoate, But are not limited to, glycol laurate, butylene glycol stearate, butyl isostearate, cetearyl isonanoate, cetearyl nanoate, cetyl caprylate, cetyl ethyl hexanoate, cetylisononanoate, But are not limited to, propylate / caprate, ethylhexylisononanoate, ethylhexyl isosateate, ethylhexyl laurate, hexyl laurate, octyldodecyl isostearate, isopropyl isostearate, isostearyl isonano Octadecyl ether, isostearyl isostearate, isocetyl ethyl hexanoate, neopentyl glycol dicaprate, neopentyl glycol di Esters such as hexanoate, neopentyl glycol diisononanoate, neopentyl glycol diisostearate, pentaerythrityl stearate, pentaerythrityl tetraethylhexanoate, and triethylhexanoin; liquid paraffin (liquid paraffin, Mineral oil), paraffin, vaseline, microcrystalline wax, and squalene; Corn oil, corn oil, safflower oil, soybean oil, rapeseed oil, macanadia nut oil, jojoba oil, cacao butter, palm oil, wheat germ oil, wheat germ oil, rosehip oil, shea butter, almond oil, olive oil, Vegetable oils such as oils, palm kernel oils and coconut oils; C8-12 acidic triglyceride, C12-18 acid triglyceride, caprylic / capric / triglyceride, caprylic / capric / lauric triglyceride, C10-40 isoalkyl acid triglyceride, C10-18 triglyceride , Glyceryl triacetyl hydroxystearate, soybean glyceride, tribehenin, tricaprin, triethylhexanone, triheptanone, triisostearin, tripalmitin, tristearin and the like can be used.

The oil includes 10-40 parts by weight based on the total weight of the composition of the present invention. More preferably from 20 to 40 parts by weight, and still more preferably from 25 to 35 parts by weight. When the oil is used in an amount of less than 10 parts by weight, it is not easy to produce a water-in-oil cosmetic composition. When the oil is used in an amount of more than 40 parts by weight, the stability of the cosmetic composition is deteriorated and the feeling of use is deteriorated.

The oil may be used alone or in combination with a non-silicone oil. It is preferable that the oil contains 70% by weight or more of a silicone oil based on the total weight of the oil. When the silicone oil is contained in an amount of less than 70% by weight, there is a problem in that the stability of the water-in-oil type emulsion is poor (see Comparative Example 2 of the present invention).

In the composition according to the present invention, a wax may be further included.

The waxes help shape the cosmetic composition and improve stability.

The wax may be selected from vegetable waxes including candelilla wax, carnauba wax or rice wax; Animal waxes including bead wax or lanolin; Mineral waxes including ozokerite or ceresin wax; Microcrystalline waxes comprising paraffin wax; And petroleum waxes including polyethylene waxes, can be selected and used.

The wax is used in an amount of 3 to 15 parts by weight, preferably 4 to 10 parts by weight, more preferably 5 to 8 parts by weight, based on the total weight of the wax. If it is used in an amount of less than 3 parts by weight, sweating phenomenon and salt precipitation phenomenon may occur on the surface, and if it is used in an amount exceeding 15 parts by weight, there is a problem that the feeling of use becomes extremely poor.

In the composition according to the present invention, a gelling agent may further be included.

The gelling agent controls the flowability and affects the stability of the cosmetic composition.

The gelling agent is used in an amount of 0.1 to 5 parts by weight based on the total weight of the composition. If the amount of the gelling agent is less than 0.1 parts by weight, the matrix of the wound is not sufficiently stabilized. If the amount is more than 5 parts by weight, In addition, there is a problem that the feeling as a cosmetic is deteriorated because of a feeling of use.

The gelling agent may be divided into an organic gelling agent and an inorganic gelling agent. The gelling agent may be used singly or in combination of two or more, but it is more preferably used in combination. The gelling agent is usually used in cosmetics, But are not limited to, aluminum stearate, magnesium stearate, tine fatty acid esters, 12-hydroxystearic acid, hardened castor oil, octadecyl stearate, ethylene glycol esters, propylene glycol esters, sorbitol fatty acid esters, sorbitan fatty acid esters, sorbitan fatty acid esters, , Hectorite, bentonite, magnesium aluminum silicate, montmorillonite, quaternium-18 hectorite, quaternium-18 bentonite, stearalkonium bentonite, distearmonium hectorite and the like can be used. It is not limited.

In the composition according to the present invention, a surfactant may further be included.

The surfactant has a great effect on the size of emulsified particles, stability of emulsification, sensation of feeling of cosmetic use, etc. depending on the kind and content thereof.

The surfactant is used in an amount of 1.5 to 12 parts by weight based on the total weight of the composition. If the surfactant is used in an amount of less than 1.5 parts by weight, separation of the emulsion may occur and stability may be deteriorated over time. there is a problem.

The surfactant may be used singly or in combination of two or more surfactants. The surfactant may be divided into an anionic surfactant, a cationic surfactant, an amphoteric surfactant, and a nonionic surfactant, and it is preferable to use a nonionic surfactant as the main surfactant.

The nonionic surfactant comprises a dimethicone polyol as the organically modified organopolysiloxane. Such materials are polydimethylsiloxanes modified to include polyether side chains, such as polyethylene oxide chains, polypropylene oxide chains, mixtures of such chains, and polyether chains including moieties derived from both ethylene oxide and propylene oxide. Other examples include alkyl-modified dimethicone polyols, i.e., compounds comprising a C2-C30 pendant side chain. Nonlimiting examples of dimethicone polyols and other silicone surfactants useful as surfactants in the present invention include, but are not limited to, Cetylpyridine / Pipi-10/1 Dimethicone Penta-Piperazine / Pipi-10/1 Dimethicone, Pendant Polyethylene Oxide Polydimethylsiloxane polyether copolymers with pendant polypropylene oxide side chains, polydimethylsiloxane polyether copolymers with pendant mixed polyethylene oxide and polypropylene oxide side chains, polydimethylsiloxane polyether copolymers with pendant mixed poly ) Polydimethylsiloxane polyether copolymers with (propylene) oxide side chains, polydimethylsiloxane polyether copolymers with pendant organic betaine side chains, polydimethylsiloxane polyether copolymers with pendant carboxylate side chains, pendant quaternary ammonium Polydimethylsiloxane polyethers with side chains It includes a further modification of the body and the pendant C2-C30 straight-chain, a copolymer containing a branched chain, or cyclic alkyl part. Other non-limiting examples of dimethicone copolyols include lauryl dimethicone copolyol, lauryl polydimethylsiloxy ethyl dimethicone polyol, dimethicone polyol acetate, Dimethicone polyol adipate, dimethicone polyol amine, di Dimethicone copolyol ether, dimethicone polyol ester, meticopolyol behenate, dimethicone polyol butyl ether, dimethicone polyol hydroxystearate, dimethicone polyol isostearate, dimethicone polyol laurate, dimethicone polyol methyl ether, dimethicone polyol phosphate, Dimethicone copolyol stearate is also included. Examples of the anionic surfactant include sodium laurate, sodium palmitate, sodium lauryl sulfate, potassium lauryl sulfate, triethanol amine salt of POE-lauryl sulfate, sodium POE-lauryl sulfate, Sodium sarcosinate, sodium N-myristoyl-N-methyl-taurine, sodium N-cocoyl-N-methyl taurate, sodium lauroylmethyl taurate, sodium POE- oleyl ether phosphate, sodium POE- Sodium di-2-ethylhexyl sulfosuccinate, sodium monooroyl monoethanolamido polyoxyethylene sulfosuccinate, sodium lauryl polypropylene glycol sulfosuccinate, sodium linear dodecylsulfonate, Monosodium N-myristoyl-L-glutamate, cured coconut oil fatty acid ester, POE-alkyl < RTI ID = 0.0 > Olefin sulfonate, higher fatty acid ester sulfonate, secondary alcohol sulfate ester salt, higher fatty acid alkylol amide sulfate ester salt, sodium lauroyl monoethanol Amidosuccinate, N-palmitoyl aspartic acid di-triethanolamine salt, sodium caseinate and the like. Examples of the anionic surfactant include stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, distearyldimethyl- ammonium chloride, poly (N, N'-dimethyl-3,5-methylenepiperidinium) chloride, cetylpyridinium chloride, alkyltetrammonium salts, alkyldimethylbenzylammonium salts, alkylisoquinolinium salts, dialkylmorpholinium salts, POE- , Alkylamine salts, polyamine fatty acid derivatives, amyl alcohol fatty acid derivatives, benzalkonium chloride, benzethonium chloride . As the amphoteric surfactant, there can be used, for example, sodium 2-undecyl-N, N, N '- (hydroxyethylcarboxymethyl) -2- Imidazolium hydroxide-1-carboxyethyloxy, 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, Dimethylaminoacetic acid betaine, alkyl betaine, amide betaine, and sulfobetaine.

The cosmetic composition according to the present invention may further contain at least one additive selected from the group consisting of stabilizers, sunscreens, fragrances, antioxidants, and pH adjusting agents, in addition to the components described above.

In addition, the cosmetic composition according to the present invention may further comprise components known to be effective for skin improvement, and examples thereof include disodium phenyldibenzimidazole tetrasulfonate, diosmethine, magnesium ascorbyl phosphate, mace lignan, Ethylhexyloxyphenol, methoxyphenyltriazine, succinic acid seed extract, acetyl phytosphingosine, ascorbyl glucoside, asialicoside, arbutin, ethyl ascorbyl ether, ethylhexyl methoxysilane, But are not limited to, cinnamate, ethylhexyl triazone, ethylhexyl salicylate, octocrylene, oil soluble licorice extract, peony extract, ginsenoside alginate, zinc oxide, titanium oxide, polyphenol, polyethoxylated retinamide, Nitin, Hydroxyproline, Arbutine, Homosalate, Human Oligopeptide-1, Meryl Road Extract, Extracts of chrysanthemum, cactus, chrysanthemum extract, fox bead extract, polyethoxylated retinamide, polyhedrin, kinetin, aminobutyric acid, oligopeptide-2, white paper extract, peony extract, blueberry extract, ginseng extract or fermentation Sugar cane extract, and the like.

The composition according to the present invention may be formulated into various formulations such as cosmetics, creams, facial cleansers, packs, foundations, make-up bases and the like, and may be formulated according to a conventional manufacturing method.

In another aspect, the present invention provides a method for producing a water-in-oil type cosmetic composition, comprising: dissolving 4 to 12 parts by weight of salt in water; and adding the water phase to the oil phase.

More specifically, the method comprises mixing an oil raw material comprising wax, gelling agent, surfactant and / or oil; 4 to 12 parts by weight of salt are added to the water containing water, mixed and dissociated; And adding the water phase portion to the oil phase portion.

The step of mixing the oil-based raw materials and the step of mixing the water-based raw materials may be performed simultaneously, sequentially, or at any stage.

In another aspect, the present invention provides a method for improving the skin by applying the water-in-oil type cosmetic composition according to the present invention to the skin.

The "skin improvement" includes all of the beneficial effects of salt on the skin and may include, for example, moisturizing, various skin troubles (skin soothing), skin wastes removal and exfoliation, acne, wrinkles and improvement of atopy.

The water-in-oil type cosmetic composition according to the present invention can be applied to the skin at least once per day, and can be applied at a cycle of one day, and is preferably absorbed into the skin after application.

The water-in-oil type cosmetic composition containing a large amount of salt according to the present invention has been known to have excellent effects on the skin. However, due to the stability problem due to the physicochemical properties of the salt, it is difficult to contain large amounts of the salt in water- It is possible to overcome the problems such as deterioration of the value of the cosmetics and the technical solution so that the salt can be stably stored in the cosmetics without precipitation, It provides excellent efficacy such as strengthening the moisture of the skin, removing the skin dead skin, alleviating various skin troubles, effect on acne and atopy.

Hereinafter, embodiments of the present invention will be described in detail to facilitate understanding of the present invention. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the following embodiments. Embodiments of the invention are provided to more fully describe the present invention to those skilled in the art.

≪ Example 1-3 and Comparative Example 1-3 >

Example 1-3 and Comparative Example 1-3 were prepared as follows.

The raw materials 1 to 10 of the oil phase were weighed in a beaker according to the contents and contents shown in Table 1 below, and then mixed homogeneously using a HOMO MIX at a temperature of 75 to 80 ° C. Raw materials 11 to 17 as raw materials for the water phase were weighed in a beaker and mixed homogeneously using a HOMO MIX at a temperature of 75 to 80 ° C. The uniformly mixed aqueous phase was slowly added to the oil phase and emulsified at 75 to 80 DEG C at 5000 rpm for 10 minutes. After emulsification and defoaming, the mixture was cooled, and the contents were poured into a suitable container at a temperature of 65 to 70 DEG C, followed by cooling at room temperature to prepare a water-in-oil cosmetic

Raw material (% by weight) Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 One Ceresin wax 5.5 5.5 5.5 5.5 5.5 2.0 2 Carnauba wax 0.5 0.5 0.5 0.5 0.5 0.5 3 Three tilipies / piperazine-10/1 dimethicone 3.0 3.0 3.0 3.0 3.0 3.0 4 Sorbitol rebate 0.5 0.5 0.5 0.5 0.5 0.5 5 Distearyl dimonium chloride 0.2 0.2 0.2 0.2 0.2 0.2 6 Cyclopentasiloxane 26.0 26.0 26.0 26.0 16.0 26.0 7 Hexyl laurate 0.0 0.0 3.0 0.0 10.0 0.0 9 Dimethicone 1.0 1.0 1.0 1.0 1.0 1.0 10 Distearmonium hectorite 0.3 0.3 0.3 0.3 0.3 0.3 11 Purified water To 100 To 100 To 100 To 100 To 100 To 100 12 Sodium chloride (or salt) 6.0 8.0 8.0 1.0 8.0 8.0 13 glycerin 3.0 3.0 3.0 3.0 3.0 3.0 14 Butylene glycol 3.0 3.0 3.0 3.0 3.0 3.0 15 1,2-hexanediol 1.5 1.5 1.5 1.5 1.5 1.5 16 Urea 1.0 1.0 1.0 1.0 1.0 1.0 17 Dipropylene glycol 3.0 3.0 3.0 3.0 3.0 3.0

≪ Experimental Example 1 > Evaluation of water retention ability and other efficacy

In order to evaluate the moisture-holding ability of the compositions of Examples 1-3 and Comparative Example 1 according to the salt content in the water-in-oil type cosmetic material, a method of evaluating the water holding ability after applying a fixed amount to the skin was used. The equipment used here is a device for measuring the moisture content of a thin skin (corresponding to the keratinocyte layer) with a skin moisture content meter (Skicon 200 (IBS, high frequency: 3.5 MHz) measuring the electrical conductivity of the skin. is well rubbing of 0 hours after the application of the predetermined amount (2mg / cm ²⁾ on the inside of 22 ℃, a relative humidity of 50% of the composition of the embodiment compared to example 1-3 example 1 at a constant temperature hangseupsil 30 blood tester each arm The short-term effect was evaluated by measuring the moisture increase rate (%) after 1 hour and 3 hours based on the water holding ability, and the moisture retention ability was measured for 3 days in order to evaluate the accumulated water retention ability. The emulsion was applied for 2 days and then the shower was applied, and the moisture increase rate was measured the next day, and then the emulsion was applied again for 3 days, and the results obtained are shown in Table 2. In addition, (Subjective evaluation result, skin dryness improvement effect questionnaire) and Table 3 (subjective evaluation result, skin dryness improvement effect questionnaire), respectively. Respectively.

division Immediately 1 hour Immediately 3 hours After 1 day Two days later 3 days later Example 1 21.60 20.34 22.86 25.83 28.26 Example 2 24.36 23.58 25.67 29.64 34.38 Example 3 23.34 24.62 26.41 28.76 33.92 Comparative Example 1 17.45 16.89 17.51 18.43 19.24

(Moisture content unit:%)

division
Number of Respondents Very good Great Inadequate Very inadequate Example 1 8 18 4 0 Example 2 12 16 2 0 Example 3 14 15 One 0 Comparative Example 1 0 6 16 8

From the results of the above Table 2, it can be seen that there is a difference in the water holding ability according to the salt content even in the same formulation. Examples 1 to 3 containing the salt have a water content comparable to that of Comparative Example 1 The increase of water retention after 1 hour and immediately after 3 hours was very high, and it was confirmed that the increase of moisture retention upon cumulative application to skin for 3 days was larger, which indicates that the cumulative skin moisturizing effect is greater. The subjective evaluation results of Table 3 also show that the skin dryness improving effects of Examples 1 to 3 are superior to those of Comparative Example 1.

division
Number of Respondents Very good Great Inadequate Very inadequate Example 1 9 15 4 2 Example 2 15 12 3 0 Example 3 13 14 2 One Comparative Example 1 0 4 14 12

Table 4 shows the results of surveys on the effects of various skin troubles (rashes, acne, erythema, itching, etc.). From this, it can be seen that the effect of salt on various skin troubles is excellent.

division
Number of Respondents Very good Great Inadequate Very inadequate Example 1 13 16 0 One Example 2 18 14 One 0 Example 3 12 14 3 One

Table 5 shows the results of the feeling and overall satisfaction survey. The above results show that although Examples 1 to 3 stabilize 6.0 parts by weight or 8.0 parts by weight of salt, the feeling on the skin and the overall satisfaction are excellent.

≪ Experimental Example 2 >

In order to examine the high-temperature stability of the water-in-oil cosmetic compositions of Examples 1-3 and 1-3, the cosmetic compositions were stored in a thermostatic chamber at each temperature shown in Table 6 for one month, and the changes with time were observed.

Item Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 50 ℃ stability stability stability stability Surface wetting
Precipitation of salt detach 45 ° C stability stability stability stability Surface wetting
Precipitation of salt detach 40 ℃ stability stability stability stability Surface wetting
Precipitation of salt Surface wetting 37 ℃ stability stability stability stability Surface wetting
Precipitation of salt Surface wetting

As shown in Table 6, all of Examples 1 to 3 were stable at high temperature. Comparative Example 1 did not contain salt in the prescription skeleton of the example, and obtained stable results at all temperatures. However, in Comparative Example 2, the silicone oil was used in an amount of less than 70% and the amount of the non-silicone oil was relatively increased. As a result, the surface was wet with oil with time, and a phenomenon of coarse salt precipitation on the surface appear. In addition, in Comparative Example 3, as the content of the wax that retains the solid cosmetic composition of the water-in-oil type was small, a phenomenon was observed in which the contents were melted and separated at 45 ° C and 50 ° C. At 40 ° C and 37 ° C, The surface was wet with oil.

Claims (9)

And 4 to 12 parts by weight of salt, wherein the salt is dissociated to the upper part of the water. The water-in-oil type cosmetic composition according to claim 1, wherein the water-soluble part comprises 30 to 80 parts by weight. The water-in-oil type cosmetic composition according to claim 1, further comprising an oil, wherein the silicone oil is contained in an amount of 70% by weight or more based on the total weight of the oil. The water-in-oil type cosmetic composition according to claim 1 or 3, further comprising 10 to 40 parts by weight of oil. The water-in-oil type cosmetic composition according to claim 1, further comprising 3 to 15 parts by weight of wax. The water-in-oil type cosmetic composition according to claim 1, further comprising 0.1 to 5 parts by weight of a gelling agent or 1.5 to 12 parts by weight of a surfactant. The water-in-oil type cosmetic composition according to claim 1, wherein the salt is at least one selected from the group consisting of a natural salt, a purified salt, a sun salt, a topaz salt, a remedy, a salt or a processed salt. 6. The method of claim 5, wherein the wax is selected from the group consisting of vegetable waxes comprising candelilla wax, carnauba wax or rice wax; Animal waxes including bead wax or lanolin; Mineral waxes including ozokerite or ceresin wax; Microcrystalline waxes comprising paraffin wax; And a petroleum wax containing polyethylene wax. The water-in-oil type cosmetic composition according to claim 1, 7. The composition of claim 6, wherein the gelling agent is selected from the group consisting of aluminum stearate, magnesium stearate, tannin fatty acid ester, 12-hydroxystearic acid, hardened castor oil, octadecyl stearate, ethylene glycol ester, propylene glycol ester, sorbitol fatty acid ester, Ester, sorbitan fatty acid ester, sorbitol rebate, hectorite, bentonite, magnesium aluminum silicate, montmorillonite, quaternium-18 hectorite, quaternium-18 bentonite or stearalkonium bentonite Wherein the water-in-oil type cosmetic composition is at least one selected from the group consisting of water,