KR20110068049A - Cosmetic composition containing cyperus papyrus extracts and pueraria radix extracts for moisturing effect on the skin - Google Patents

Abstract

PURPOSE: A cosmetic composition for skin moisturizing is provided to prevent skin dryness and to enhance moisture-containing ability. CONSTITUTION: A cosmetic composition for skin moisturizing contains 0.001-10.0 weight% of Cyperus papyrus and Pueraria radix extract as an active ingredient. the extract is obtained by drying Cyperus papyrus and Pueraria radix in a dark place, inputting Cyperus papyrus and Pueraria radix into each container, isolating, filtering, and concentrating. The extraction solvent is water(purified water), low alcohol of 1-4 carbon atoms, or mixture thereof. The composition is manufactured in the form of massage cream, essence, eye cream, cleansing cream, cleansing foam, cleansing water, pack, spray, or powder.

Description

Cosmetic composition for moisturizing skin containing papyrus extract and root extract extract {Cosmetic composition containing Cyperus Papyrus Extracts and Pueraria radix Extracts for moisturing effect on the skin}

The present invention relates to a cosmetic composition for moisturizing the skin, and more specifically, by using both papyrus extract and extract of the roots, the moisturizing ability to prevent the skin from drying out, and by using the two together to increase the moisture retention in the skin. It relates to a cosmetic composition that causes a synergistic effect to increase the moisturizing power of the skin.

Human skin is a dermatological function of a barrier to prevent the loss of biological components such as water and electrolytes, and at the same time to prevent harmful substances from entering the skin. The structure of the skin is divided into epidermal layer, dermal layer and subcutaneous fat layer. The epidermal layer is composed of the basal layer, the pole layer, the granule layer and the stratum corneum. The stratum corneum, the outermost layer of the epidermis, prevents the invasion of mechanically and chemically harmful components and prevents the loss of internal moisture in the drier external environment. At the same time, the stratum corneum itself retains flexibility by maintaining adequate moisture.

 The moisture content of the epidermal layer is about 70% in the basal and polar layers, 30-50% in the granular layer, and 15-30% in the stratum corneum (Journal of Investigative Dermatology, 116, 434-442, 2001). . However, those who complain of dry skin are known to have less than 10% water content in the stratum corneum. The water supplied from the dermis diffuses to the top of the stratum corneum mainly by passive diffusion and is lost to the outside. This is called Trans Epidermal Water Loss (TEWL), and it is known that preventing epidermal water loss is also sebum and epidermal lipids, which are the components of the stratum corneum.

Therefore, the moisture content in the stratum corneum is important to moisturize the skin, the moisture control in the stratum corneum is largely controlled by two factors. The first is the natural moisturizing factor, NMF (Natural Moisturizing Factor), which flows out of granule cells, and consists of amino acids, pyrrolidone carboxylic acid, lactate, urea, and inorganic salts, which are degradation products of filaggrin. These combine with moisture and play an important role in increasing water in the stratum corneum. Secondly, the intercellular lipids present in the stratum corneum are composed of ceramide, cholesterol, and free fatty acids, which are synthesized in keratinocytes and secreted out of the cells in the process of differentiation from the granular layer to the stratum corneum to form intercellular lipids. They act as a barrier to inhibit the evaporation of water into the external environment by passive diffusion of water supplied from the dermis.

However, despite this function of the skin, the skin is aging with the harsh external environment, such as wind, cold weather, sunlight, face wash, shaving, etc., and easily loses moisture, making it easy to dry and rough skin.

To prevent this phenomenon, cosmetics are used. Applying cosmetics to the skin creates an artificial film on the surface of the skin, which prevents external irritation, prevents water loss from inside the skin, and supplies some moisture to the skin. .

However, in general, humectants such as water-soluble polyhydric alcohols, sodium pyridone carboxylic acid sodium (PCA-Na), urea, amino acids, elastin, etc., which have been used in moisturizing creams or lotions, have problems. In view of these problems, glycerin and sorbitol, which are most commonly used as moisturizers in conventional cosmetics, are water-soluble polyhydric alcohols that are sticky compared to excellent moisturizing properties, making them uncomfortable when used, and having two hydroxyl groups of propylene glycol, 1,3 Butylene glycol, etc. have a skin side effect when used in large amounts. In addition, sodium pyrrolidone carboxylic acid (NMF), sodium lactate (Na-Lactate), and urea, which are natural moisturizing factors (NMF), have high electrolytic properties and impair emulsification stability, and amino acids, collagen, and elastin also have moisturizing abilities. However, the moisturizing capacity is limited.

 The present inventors earnestly researched to develop a cosmetic composition having excellent moisturizing effect and excellent skin safety and excellent stability in the formulation than the conventional moisturizing cosmetics, and confirmed that the papyrus extract and the root extract extract achieve the above object. The invention was completed.

Therefore, an object of the present invention is to maximize the skin moisturizing power by using the papyrus extract and the extract of the root of the vegetable extract.

In order to solve the above problems, the present invention may include the following means.

According to one embodiment of the present invention, the skin moisturizing cosmetic composition according to the present invention contains a papyrus extract and a root extract as an active ingredient.

The extract is characterized in that it contains 0.001% by weight to 10.0% by weight in the cosmetic composition, respectively.

The composition is characterized in that it has a formulation selected from the group consisting of softener, nourishing lotion, nourishing cream, massage cream, essence, eye cream, cleansing cream, cleansing foam, cleansing water, pack, spray and powder.

Papyrus extract has excellent moisturizing ability to prevent the skin from drying out, and root extract extract can increase the moisture retention in the skin and use the two together to maximize the skin moisturizing effect. As described in the following experimental example, by using the papyrus extract and the extract of the roots, the water retention capacity was observed to increase than when used alone, it was confirmed that the skin stability is also excellent.

The present invention relates to a moisturizing cosmetic composition to improve dry and rough skin by increasing the moisture retention capacity in the stratum corneum using papyrus extract and extract extract.

Hereinafter, the present invention will be described in detail.

Papyrus used in the present invention (Cyperus papyrus) is a plant belonging to the Cyperaceae (Cyperaceae) has been cultivated for a long time in the Nile delta region of Egypt, collected for writing sacks or stems, the middle part of the middle cut into thin and long pieces Compress and dry to create a smooth, thin writing paper. Papyrus is a grass-like aquatic plant with dull triangular stems of woody nature, growing up to 4.6 meters in calm water, about 90 cm deep. Now it is often planted in ponds for ornamental purposes or in greenhouses in warmer areas. C.isocladus / C.papyrus 'nanus' grows up to 60 cm in height, sometimes planted in pots or raised inside the house. Ancient Egyptians used papyrus stems to make sails, cloth, cushions, ropes, and paper. Paper made from papyrus was the main stationery of the ancient Egyptians, introduced by the Greeks and widely used in the Roman Empire.

The roots used in the present invention are distributed in East Asia and inhabit the edges of bushes and forests. A vine plant that crawls or climbs very long (10-30 m). Young stems are downy and sometimes completely cover a tree. The leaves are broad, the leaves are ovate, two to three lobes, and the lower part is hairy. Flowers are two-colored, purple to purple or pale red, and yellow at the bottom of petal. In flowers, it smells like grapes. Roots are large and split. Its main ingredients include daidzein, daidzin, genistein, paracoumaric acid, puerarin, quercetin, calcium, iron, magnesium, phosphorus, potassium and vitamin B2. Chop it into pieces and then dry it and use it as a raw material for herbal medicine, herbs and tea. Starch is edible and edible, and the skin of the vine is called 'cheololchi', and it is substituted for string and weaves. The leaves are used as feed or edible. It has also been used as an antidote, anti-nausea, antispasmodic, cardiac, analgesic, purifying, antiperspirant, antipyretic, milk secretion, hypoglycemic, antihypertensive.

In the present invention, the papyrus extract and the root extract are used as active ingredients. The extract according to the present invention can be prepared as follows.

Wash the papyrus and the roots with water and dry them in the shade. Each dry plant is placed in an extraction container and extracted for a period of time at an appropriate temperature in an appropriate amount of extraction solvent. The extract can be filtered and concentrated using a vacuum rotary evaporator or the like.

As the extraction solvent, a polar solvent selected from water (purified water), a lower alcohol having 1 to 4 carbon atoms or a mixed solvent thereof may be used, and preferably ethanol is used.

The amount of the extraction solvent is 2 to 10 times the dry weight of the herbal medicine.

The extraction method may be an extraction method such as water bath extraction, reflux cooling extraction, ultrasonic extraction, etc., preferably may be extracted 1 to 5 times as an extraction method of water bath extraction.

The deposition temperature is 30 ~ 70 ℃, more preferably 40 ~ 60 ℃, most preferably maintained at about 50 ℃ is most effective in the prevention of decay, discoloration and odor.

The deposition time is 5 to 20 hours, preferably 10 hours.

After the extract is obtained, solids are removed using a filter paper, the suspension is centrifuged, and the supernatant can be filtered under reduced pressure.

The filtered extract can be concentrated under reduced pressure at 20 ~ 100 ℃, preferably 50 ~ 70 ℃ with a vacuum rotary concentrator.

 The extract of the present invention preferably comprises 0.001 to 10.0% by weight relative to the total cosmetic composition. When the extract of the present invention contains less than 0.001% by weight, the skin moisturizing effect of the cosmetic composition is insignificant, and when added in excess of 10.0% by weight, the synergistic effect due to the overinjection is not economical, and the product stability is not good. Can affect More preferably, the extract of the present invention preferably contains 0.1 to 5.0% by weight, respectively.

The components included in the cosmetic composition of the present invention include components commonly used in cosmetic compositions in addition to papyrus extract and root extract as active ingredients, and include, for example, conventional auxiliaries such as antioxidants, stabilizers, solubilizers, pigments and perfumes, And carriers.

The skin moisturizing cosmetic composition of the present invention, in addition to the papyrus extract and the root extract, within the range of not impairing the desired effect of the present invention, preferably contains other ingredients that can increase the moisturizing ability. In addition, it may be prepared in any formulation conventionally prepared in the art, for example, solutions, suspensions, emulsions, pastes, gels, creams, lotions, powders, soaps, surfactant-containing cleansing, oils, powders It may be formulated as a foundation, emulsion foundation, wax foundation and spray, but is not limited thereto. More specifically, it may be prepared in the form of a flexible lotion, nutrition lotion, nutrition cream, massage cream, essence, eye cream, cleansing cream, cleansing foam, cleansing water, pack, spray or powder.

When the formulation of the present invention is a paste, cream or gel, the carrier components include animal oils, vegetable oils, waxes, paraffins, starches, trachants, cellulose derivatives, polyethylene glycols, silicones, bentonites, silica, talc or zinc oxide. Can be used.

When the formulation of the present invention is a powder or a spray, lactose, talc, silica, aluminium hydroxide, calcium silicate or polyamide powder may be used, especially in the case of spray, additionally chlorofluorohydrocarbon, Propellant such as propane / butane or dimethyl ether.

When the formulation of the present invention is a solution or emulsion, a solvent, solubilizer or emulsifier is used as the carrier component, for example water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol , Aliphatic esters of 1,3-butylglycol oil, glycerol aliphatic esters, polyethylene glycols or sorbitan.

When the formulation of the present invention is a surfactant-containing cleansing, the carrier component is an aliphatic alcohol sulfate, an aliphatic alcohol ether sulfate, a sulfosuccinic acid monoester, isethiotate, imidazolinium derivatives, methyltaurate, sarcosinate, fatty acid amide. Ethersulfates, alkylamidobetaines, aliphatic alcohols, fatty acid glycerides, fatty acid diethanol amides, vegetable oil lanolin derivatives or ethoxylated glycerol fatty acid esters and the like can be used.

Hereinafter, the present invention will be described in more detail with reference to Examples and Experimental Examples. The following Examples and Experimental Examples are only for more specifically describing the present invention, and the scope of the present invention is not limited by them according to the gist of the present invention. It will be obvious to him.

Preparation Example 1 Preparation of Papyrus Extract

50 g of papyrus was immersed in 200 ml of 100% ethanol and warmed in a 50 ° C. water bath for 10 hours. The obtained extract was cooled to room temperature and filtered through a filter paper to give a filtrate. Ethanol was evaporated from the filtrate using nitrogen, concentrated, and then dissolved in 10% ethanol to prepare an extract.

Preparation Example 2 Preparation of Root Extract

50 g of root roots were taken, immersed in 200 ml of 100% ethanol, and warmed in a 50 ° C. water bath for 10 hours. The obtained extract was cooled to room temperature and filtered through a filter paper to give a filtrate. Ethanol was evaporated from the filtrate using nitrogen, concentrated, and then dissolved in 10% ethanol to prepare an extract.

Experimental Example 1 Evaluation of Water Retention Capacity for Extracts

Papyrus extract obtained in Preparation Examples 1 and 2, extract of papyrus extract, mixture of papyrus extract and root extract and glycerin in the form of aqueous solution in purified water, and then measured the water retention capacity under the conditions of 25 ℃ and 45% relative humidity. 10 g of each of the aqueous solutions was placed in a petri dish and the weight change was measured in a desiccator containing CaCl ₂ . Weighed once daily for three days. The results of this experiment are shown in Table 1 below.

time Preparation Example 1
(10.0%) Preparation Example 2
(10.0%) Mixed solution of Preparation Example 1 and Preparation Example 2
(5.0% + 5.0%) glycerin
(10.0%) Purified water Initial value 10.07 10.05 10.06 10.06 10.04 1 day 8.67 8.64 9.12 8.65 7.96 2 days 7.51 7.10 8.48 7.27 6.85 3 days 6.95 6.41 7.96 6.03 3.69

As can be seen from the results of the experimental example, both the papyrus extract and the root extract were observed to have better water retention than glycerin and purified water, and in particular, the case of using both extracts was found to be the best in water retention.

[Manufacture example 3]

To prepare a cosmetic composition containing a papyrus extract, a root extract in an emulsion form having a composition ratio of Table 2.

ingredient Example 1 (% by weight) Comparative Example 1 (% by weight) Comparative Example 2 (wt%) Comparative Example 3 (wt%) Comparative Example 4 (wt%) Papyrus Extract 2.5 5.0 Reed extract 2.5 5.0 glycerin 5.0 Liquid paraffin 8.0 8.0 8.0 8.0 8.0 Polysorbate 60 2.0 2.0 2.0 2.0 2.0 Sorbitan sesquirololeate 1.0 1.0 1.0 1.0 1.0 Squalane 5.0 5.0 5.0 5.0 5.0 Beeswax 2.0 2.0 2.0 2.0 2.0 Triethanolamine 0.5 0.5 0.5 0.5 0.5 Propylene glycol 1.0 1.0 1.0 1.0 1.0 Carboxyl Vinyl Polymer 1.5 1.5 1.5 1.5 1.5 Purified water Balance Balance Balance Balance Balance system 100 100 100 100 100

Experimental Example 2 Skin Patch Test

In the past, skin irritation has not been shown to be irritable, and a skin test was performed on 20 women in their 20s and 30s with no skin disease or skin allergy symptoms to confirm the skin safety of the present invention. First the test site was wiped with 70% ethanol and dried. 15 μg of the prepared test substance was dropped in a Fin chamber (Finn chamber, 100 × 10, EPITEST, Finland), and then sealed in the forearm inner part of the test subject. The patch was marked for 24 hours, the patch was removed, and the test site was marked with a pen. 1 hour and 24 hours after marking, the test site was observed using a magnifying glass (8MC-150, DAZOR, United States of America) to observe erythema and edema. Skin response was determined according to the regulations of the International Contact Dermaitis Research Group (ICDRG), and the average skin response rate was calculated according to Equation 1. The results are shown in Table 3.

[Evaluation Criteria and Score of Skin Response]

Symbol score Evaluation standard - 0 No response ± 0.5 Faint or light erythema + One Boundary but weak erythema, edema and papules ++ 2 Pronounced erythema, papules and vesicles +++ 3 Severe erythema and alveolar, scleroderma

Average skin reactivity = (score x responses x 100 x 1/2) / [3 (maximum score) x total number of subjects (n)]

Test substance After 1 hour After 24 hours Reactivity (%)
(n = 20) ± + ++ ± + ++ Example 1 - - - - - - 0.00 Comparative Example 1 - - - - - - 0.00 Comparative Example 2 - - - - - - 0.00 Comparative Example 3 - - - - - - 0.00 Comparative Example 4 - - - - - - 0.00

As can be seen in Table 3, skin irritation does not appear in the cosmetic containing the papyrus extract and the root extract in the skin patch test it can be seen that the skin safety is excellent.

Experimental Example 3 Evaluation of Skin Moisturizing Device

Moisturizing effect in the stratum corneum was measured using the cosmetics prepared in Examples and Comparative Examples. 100 women aged 30 to 40 years with dry skin were used to apply the cosmetics prepared in Example 1 and Comparative Examples 1 to 4 twice a day to the face for one month. 1 week, 2 weeks, 4 weeks after application and 2 weeks after application stop using the moisture measuring instrument (corneometer CM825, courage Khazaka electronic GmbH, Germany) at constant temperature and humidity conditions (25 ℃, humidity 45%) The skin conductivity after (6 weeks) was measured to evaluate the rate of increase of skin moisturizing. The results are shown in Table 4 below, and the results are expressed as average values.

Cosmetics 1 week (%) 2 weeks (%) 4 weeks (%) 6 weeks (%) Example 1 10.1 15.6 48.1 39.4 Comparative Example 1 5.6 7.9 25.7 19.2 Comparative Example 2 4.3 5.9 24.1 18.5 Comparative Example 3 4.6 6.9 19.9 15.0 Comparative Example 4 0.2 0.8 0.7 0.3

As can be seen from the results of Table 4, the skin moisturizing effect was shown to be the most excellent in Example 1 containing the papyrus extract and the root extract. In particular, in the case of Example 1 containing both papyrus extract and the root extract, it was observed that the skin moisturizing effect is increased than using the active ingredient alone, and it was confirmed that the moisturizing effect is superior to Comparative Example 3 containing glycerin. there was.

Experimental Example 4 Skin Moisturizing Questionnaire Evaluation

For the test subjects of Test Example 3, a questionnaire about the improvement effect of moisture retention after using Example 1 and Comparative Examples 1 to 4 was conducted. The evaluation points were evaluated in the following four steps and the average value was summarized. The results are shown in Table 5.

[Rating]

4: very satisfied

3: satisfaction

2: a little satisfied

1: No effect

Cosmetics Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Score 3.8 3.5 3.6 3.0 1.5

As can be seen from the results of Table 5, in Example 1 and Comparative Examples 1 and 2 according to the present invention, it was shown that there is an effect of improving the skin moisturizing, in particular, Example 1 containing both papyrus extract and extract of the roots In the case of skin moisturizing effect was found to be superior.

Hereinafter, as an example of the cosmetic formulation of the present invention, the softening lotion, lotion, essence, massage cream, shampoo and body cleanser containing the active ingredient of the present invention are exemplified, but the formulation of the cosmetic of the present invention is not necessarily limited thereto. .

Formulation Example 1 Flexible Cosmetics

Softening longevity containing papyrus extract and root extract was prepared according to a conventional method.

Raw material name Content (% by weight) Papyrus Extract 2.5 Reed extract 2.5 1,3-butylene glycol 5.2 Oleyl alcohol 1.5 ethanol 3.2 Polysorbate 20 3.2 Benzophenone-9 2.0 Carboxyl Vinyl Polymer 1.0 glycerin 3.5 incense a very small amount antiseptic a very small amount Purified water Balance system 100

[Formulation Example 2] Lotion

Lotions containing papyrus extract and root extract were prepared according to a conventional method.

Raw material name Content (% by weight) Papyrus Extract 2.5 Reed extract 2.5 Cetostearyl alcohol 1.0 Glyceryl Monostearate 0.8 Sorbitan monostearate 0.3 Porofilparaben 0.1 Polysorbate 60 1.0 Mineral oil 5.0 Pyromethicone 3.0 Dimethicone 0.5 Allantoin 0.1 glycerin 5.0 Alcohol 2 Propylene glycol 3.0 incense a very small amount antiseptic a very small amount Purified water Balance system 100

Formulation Example 3 Essence

Essences containing papyrus extract and root extract were prepared according to a conventional method.

Raw material name Content (% by weight) Papyrus Extract 2.5 Reed extract 2.5 1,3-butylene glycol 4.0 glycerin 3.0 Allantoin 0.5 Panthenol 0.1 EDTA-2Na 0.01 ethanol 5.0 Triethanolamine 1.5 Squalane 2.0 Beeswax 2.5 Polysorbate 60 3.5 Carboxyl Vinyl Polymer 1.0 Sorbitan sesquioleate 2.5 incense a very small amount antiseptic a very small amount Purified water Balance system 100

Formulation Example 5 Massage Cream

Massage creams containing papyrus extract and root extract were prepared according to a conventional method.

Raw material name Content (% by weight) Papyrus Extract 2.5 Reed extract 2.5 glycerin 4.0 Vaseline 3.5 Triethanolamine 0.5 Liquid paraffin 24.0 Squalane 3.0 Beeswax 2.1 Tocopheryl acetate 0.1 Polysorbate 60 2.4 Carboxyl Vinyl Polymer 1.0 Sorbitan sesquioleate 2.3 incense a very small amount antiseptic a very small amount Purified water Balance system 100

Formulation Example 6 Shampoo

Shampoo containing papyrus extract and root extract was prepared according to a conventional method.

Raw material name Content (% by weight) Papyrus Extract 2.5 Reed extract 2.5 Alkyl ether sulfate (30%) 20.0 Alkylamidobetaine (30%) 5.0 Propylene glycol 3.0 Lauramid 4.0 EDTA-2Na 0.1 Polyquaternium-10 0.05 NaCl 0.1 Citric acid 2.4 incense a very small amount antiseptic a very small amount Purified water Balance system 100

Formulation Example 7 Body Cleanser

A body cleanser containing papyrus extract and root extract was prepared according to a conventional method.

Raw material name Content (% by weight) White Throat Mushroom 2.5 Reed extract 2.5 Alkyl ether saccharide (30%) 30.0 Alkyl ether sulfosuccinate (30%) 20.0 Alkylamidobetaine (30%) 5.0 Propylene glycol 5.0 Betaine 5.0 Lauramiddiei 4.0 Cellulose gum 0.05 Hydrolyzed protein 0.1 Citric acid a very small amount NaCl a very small amount incense a very small amount antiseptic a very small amount Purified water Balance system 100

Claims (3)

Cosmetic composition for skin moisturizing containing papyrus extract and root extract as an active ingredient. According to claim 1, wherein the extract is a cosmetic composition for moisturizing the skin, characterized in that it contains 0.001% to 10.0% by weight in the cosmetic composition, respectively. The composition of claim 1, wherein the composition has a formulation selected from the group consisting of softener, nourishing lotion, nourishing cream, massage cream, essence, eye cream, cleansing cream, cleansing foam, cleansing water, pack, spray and powder. A cosmetic composition for skin moisturizing, characterized in that.