Non-aqueous ointment cosmetic composition containing plant-derived ingredients

Abstract

The present invention relates to a non-aqueous ointment cosmetic composition, which comprises castor seed oil, hydrogenated castor oil, vegetable wax and plant-derived oil. In the composition, castor seed oil and hydrogenated castor oil are mixed in an optimal ratio, and the vegetable wax and the plant-derived oil are added. Therefore, the non-aqueous ointment cosmetic composition can be prepared even without using mineral components, thereby achieving a non-aqueous ointment cosmetic composition that has little irritation to the skin and is stable because it is composed only of plant-derived components, and has high skin permeability and excellent moisturizing ability because it contains non-aqueous components.

Description

Technical Field

[0001] The invention relates to a non-aqueous ointment cosmetic composition, which comprises castor seed oil, hydrogenated castor oil, vegetable wax and vegetable source oil. Background Art

[0002] For the human body, the skin is an organ that functions as a protective membrane to protect the organism from the influence of the external environment. Its role is to prevent the loss of biological components such as water or electrolytes in the human body, and to prevent external harmful substances from invading the human body. This skin is roughly divided into the epidermis, dermis and subcutaneous fat layer. The epidermis is composed of keratinocytes and melanocytes. The outermost keratinocyte layer of the skin is in direct contact with the external environment, so it needs a strong ability to resist physical, chemical or material penetration, and prevent the loss of water from the human body to the outside while maintaining appropriate moisture, thereby maintaining flexibility.

[0003] Generally speaking, the moisture content of the skin is about 70% in the dermis, but it gradually decreases in the epidermis, and is about 10-30% in the keratinocyte layer. The water provided from the dermis mainly moves to the upper part of the stratum corneum through passive diffusion, and is eventually discharged to the outside. This is called transepidermal water loss (TEWL), and what keeps this transepidermal water loss at an appropriate level are the sebum components and epidermal lipids that are components of the lipid membrane of the keratinocyte layer. In addition, there is a hydrophilic substance with moisturizing ability called Natural Moisturizing Factor (NMF) in the keratinocyte layer, which plays an important role in moisturizing the skin. When the moisture content of the normal keratinocyte layer is maintained at around 10% to 30%, the skin will be smooth and soft, and its protective function for the body will be normally performed.

[0004] However, when the moisture content of the keratinocyte layer is below 10%, the skin becomes rough and loses its body protection function, leading to aging. For example, in dry skin, due to the weakened aggregation of keratinocytes, keratinocytes fall off from the skin surface like white scales, and the skin becomes dry because the moisture content of the keratinocyte layer is lower than that of normal skin. In addition, even healthy skin can become dehydrated due to adverse external environments such as wind, cold weather, sunlight, washing the face, shaving, etc., resulting in poor skin condition.

[0005] Therefore, it is very important to properly maintain the moisture content of the keratinocyte layer of the skin. In addition to water-soluble moisturizing ingredients such as natural moisturizing factors, oil-soluble ingredients also play an important role in maintaining the moisture of the keratin layer. That is, the oil-soluble ingredients not only form an oil film for inhibiting water evaporation, but also retain a certain degree of moisture themselves, thereby playing a role in maintaining the moisture of the keratin, and the ointment formulation has an excellent effect on inhibiting the evaporation of water of such oil-soluble ingredients.

[0006] On the other hand, ointment dosage forms refer to dosage forms in which oil with excellent moisturizing ability is solidified. Due to its high hardness, it has the advantage of not slipping, and is therefore widely used as a moisturizer. Ointments composed of non-aqueous components are mostly composed of mineral components, such as paraffin oil, paraffin, liquid paraffin, petrolatum (vaseline), petroleum and other mineral oils. Mineral oil is a colorless, transparent, and odorless mineral oil extracted from petroleum, and has been used as a skin softener or moisturizer in many products until recently. This mineral component can cause the evaporation of moisture from the skin and cause allergic reactions when used in excess, so there is a recent trend to avoid its use.

[0007] Therefore, there is an urgent need to develop a cosmetic composition which, by adding plant ingredients instead of mineral ingredients that cause skin irritation, has a similar feeling of use and moisturizing feeling to existing ointments composed of mineral ingredients. Summary of the invention

[0008] Therefore, the present inventors have conducted intensive research to develop a non-aqueous ointment cosmetic composition in which castor seed oil and hydrogenated castor oil are mixed at an optimal ratio, and plant wax and plant-derived oil are added, so that excellent feeling of use and moisturizing feeling can be achieved even without using mineral ingredients. As a result, a non-aqueous ointment cosmetic composition that has little irritation to the skin and is stable because it is composed only of plant-derived ingredients, and has high skin permeability and excellent moisturizing ability because it contains non-aqueous ingredients has been developed, thereby completing the present invention.

[0009] Therefore, an object of the present invention is to provide a non-aqueous ointment cosmetic composition, which comprises castor seed oil, hydrogenated castor oil, vegetable wax and vegetable source oil.

[0010] Hereinafter, the present invention will be described in more detail.

[0011] One aspect of the present invention relates to a non-aqueous ointment cosmetic composition comprising castor seed oil, hydrogenated castor oil, vegetable wax and vegetable-derived oil.

[0012] In the present invention, the non-aqueous ointment cosmetic composition may be in a solid stick form, but is not limited thereto.

[0013] In the present invention, "castor seed oil" is a non-volatile oil obtained from castor (Ricinus communis) seeds. Castor seed oil is an oil with adhesion, very high viscosity, little change in heat, and a slightly yellow liquid. Unlike other fatty oils, it is soluble in ethanol. The fatty acid components such as linolenic acid, palmitic acid, and oleic acid contained in castor seed oil play a role in keeping the skin moisturized. Because it easily penetrates the skin, it can promote the absorption of functional ingredients, provide elasticity and gloss, and help the skin become flexible and soft. It has excellent effects in protecting the skin by covering the skin with high viscosity and adhesion, and preventing the evaporation of water in the skin to prevent dryness and aging caused by it.

[0014] In the present invention, the castor seed oil may be in liquid form.

[0015] In the present invention, "hydrogenated castor oil" is a hydrogenated vegetable oil derived from castor seed oil which is liquid at room temperature, and is prepared by adding hydrogen and applying pressure and heating in the presence of a nickel catalyst, and exists in a solid state at room temperature by raising the melting point more stably. It is odorless and insoluble in water. Hydrogenated castor oil is a hard and waxy substance that can be processed into fine wax particles.

[0016] In the present invention, the hydrogenated castor oil may be in a solid state.

[0017] In the present invention, the weight ratio of castor seed oil to hydrogenated castor oil may be 7:3 to 8:2, 7:4 to 8:2, 7:5 to 8:2, 7:6 to 8:2, but is not limited thereto.

[0018] In the present invention, the content of castor seed oil relative to the total weight of the cosmetic composition may be 55-70% by weight, 55-67% by weight, 55-64% by weight, 55-62% by weight, 57-70% by weight, 57-67% by weight, 57-64% by weight, 57-62% by weight, 59-70% by weight, 59-67% by weight, 59-64% by weight, 59-62% by weight, for example, 60.2% by weight, but is not limited thereto.

[0019] In the present invention, relative to the total weight of the cosmetic composition, the content of hydrogenated castor oil may be 15-35% by weight, 15-33% by weight, 15-30% by weight, 15-27% by weight, 18-35% by weight, 18-33% by weight, 18-30% by weight, 18-27% by weight, 21-35% by weight, 21-33% by weight, 21-30% by weight, 21-27% by weight, 24-35% by weight, 24-33% by weight, 24-30% by weight, 24-27% by weight, for example, 25.8% by weight, but is not limited thereto.

[0020] In the present invention, the plant wax may be one or more selected from the group consisting of sunflower wax, rice bran wax, and candelilla wax, but is not limited thereto.

[0021] In the present invention, relative to the total weight of the cosmetic composition, the content of the vegetable wax may be 1.0-3.0 wt%, 1.0-2.7 wt%, 1.0-2.5 wt%, 1.0-2.3 wt%, 1.0-2.1 wt%, 1.3-3.0 wt%, 1.3-2.7 wt%, 1.3-2.5 wt%, 1.3-2.3 wt%, 1.3-2.1 wt%, 1.6-3.0 wt%, 1.6-2.7 wt%, 1.6-2.5 wt%, 1.6-2.3 wt%, 1.6-2.1 wt%, 1.9-3.0 wt%, 1.9-2.7 wt%, 1.9-2.5 wt%, 1.9-2.3 wt%, 1.9-2.1 wt%, for example, 2.0 wt%, but is not limited thereto.

[0022] In the present invention, the plant-derived oil may be at least one selected from the group consisting of camellia seed oil, dicaprylyl ether, apple seed oil, hydrogenated coconut oil, sunflower seed oil and olive oil, but is not limited thereto.

[0023] In the present invention, the content of the plant-derived oil, relative to the total weight of the cosmetic composition, may be 9.0-14.0% by weight, 9.0-13.0% by weight, 9.0-12.0% by weight, 10.0-14.0% by weight, 10.0-13.0% by weight, 10.0-12.0% by weight, 11.0-14.0% by weight, 11.0-13.0% by weight, 11.0-12.0% by weight, for example, 12.0% by weight, but is not limited thereto.

[0024] The present invention relates to a non-aqueous ointment cosmetic composition, comprising castor seed oil, hydrogenated castor oil, vegetable wax and plant-derived oil. In the composition, castor seed oil and hydrogenated castor oil are mixed in an optimal ratio, and the vegetable wax and the plant-derived oil are added. Therefore, the non-aqueous ointment cosmetic composition can be prepared even without using mineral components, and the following effects are expected: a non-aqueous ointment cosmetic composition is achieved, which has little irritation to the skin and is stable because it is composed only of plant-derived components, and has high skin permeability and excellent moisturizing ability because it contains non-aqueous components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a photograph showing the paste formation of Example 1, which is a non-aqueous ointment cosmetic composition according to a preparation example of the present invention.

[0026] Figure 2This is a photograph showing the paste formation of Comparative Example 1, which is a non-aqueous ointment cosmetic composition according to a preparation example of the present invention.

[0027] Figure 3 The bar graph shows the results of comparing and evaluating the glossing effect of an experimental example of the present invention.

[0028] Figure 4 This is a graph showing the results of measuring the change in skin moisture content (%) in an experimental example of the present invention. DETAILED DESCRIPTION

[0029] Hereinafter, the present invention will be described in more detail by the following examples. However, these examples are only used to illustrate the present invention, and the scope of the present invention is not limited to these examples.

[0030] Preparation Example 1: Preparation of Example

[0031] Examples were prepared according to the components and contents described in Table 1 below.

[0032] Table 1

[0033]

[0034] The liquid castor seed oil and solid hydrogenated castor oil listed in Table 1 were heated at 80°C until they were completely liquid, then homogenized at 70-75°C for 3 minutes, and then solidified at room temperature to form a paste.

[0035] Next, in order to form hardness, sunflower seed wax as a vegetable wax and camellia seed oil as a vegetable source oil were added, and then melted at 70-75° C. for 3 minutes and uniformly mixed using a vacuum emulsifier (Agimixer), and finally solidified at room temperature for about 3 hours to prepare Examples 1-3 as non-aqueous ointment cosmetic compositions. The preparation results of Example 1 are as follows: Figure 1 shown.

[0036] Preparation Example 2: Preparation of Comparative Example

[0037] Comparative Examples 1 to 4 were prepared according to the components and contents described in Table 2 below.

[0038] Table 2

[0039]

[0040] Specifically, petrolatum and mineral oil as mineral components were mixed at 80°C to prepare a semi-solid type. Next, 2.0 wt% of plant sunflower seed wax and camellia seed oil as a plant-derived oil were added to form hardness, and then melted at 80°C for 3 minutes and uniformly mixed using a vacuum emulsifier. Finally, the mixture was solidified at room temperature for about 3 hours to prepare Comparative Examples 1 and 2 as non-aqueous ointment cosmetic compositions. The preparation results of Comparative Example 1 are as follows: Figure 2 shown.

[0041] Furthermore, liquid castor oil and solid hydrogenated castor oil were mixed in a ratio of 9:1 and 6.5:4.5, which is greater than 7:3 to 8:2, and then homogenized at 70-75°C for 3 minutes and solidified at room temperature to form a paste. Next, sunflower seed wax as a plant wax and camellia seed oil as a plant-derived oil were added to form hardness, and then melted at 80°C for 3 minutes and uniformly mixed using a vacuum emulsifier, and finally solidified at room temperature for about 3 hours to prepare Comparative Examples 3 and 4 as non-aqueous ointment cosmetic compositions.

[0042] Experimental Example 1: Evaluation of the gloss effect

[0043] The glossing effects of Example 1 and Comparative Example 1 were compared and evaluated. Specifically, Example 1 and Comparative Example 1 were applied to the inner forearm as the test site, and a skin gloss meter (Delfin, Finland) was used to measure the glossing effect. The average of the three measured values ​​was used to calculate the gloss change, and then the two formulations were compared and evaluated. The results are shown in Table 3 and Figure 3 shown.

[0044] Table 3

[0045] Example 1 Comparative Example 1 Gloss Unit (GU) 6.0 1.7

[0046] From the above Table 3 and Figure 3 It was confirmed that Example 1 showed a skin glossiness unit increase / decrease rate that was about 3 times higher than that of Comparative Example 1. Therefore, it was confirmed that the glossiness of Example 1 was improved more than that of Comparative Example 1.

[0047] Experimental Example 2: Evaluation of skin moisture content

[0048] More than 10 healthy male / female subjects were selected to evaluate the moisture content of their skin. A control group (no application) that did not apply anything, and an experimental group that applied Example 1 and Comparative Example 1 were compared. The experimental groups were divided into groups to be used in sequence, and the moisture content in the skin epidermis was measured before and after the application, 2 hours after application, 4 hours after application, and 8 hours after application. A skin moisture tester (corneometer) sensor was used to measure the moisture content in the skin epidermis. The skin moisture tester is a device that can confirm the skin's moisturizing ability by measuring the ionization level of water and digitizing it. The moisture content of the skin is expressed in %, and is implemented under constant temperature of 24°C and constant humidity (relative humidity) of 40%. The skin moisture tester probe is placed on the inner side of the forearm as the measurement site and pressed, and then the conductivity digitized by the sensor is confirmed on the screen. After the measurement, wipe the sensor with a paper towel such as a KIMS rag, change the measurement site and repeat the measurement multiple times, and measure the change in moisture content over time. The results are shown in Table 4 and Figure 4 shown.

[0049] Table 4

[0050] (unit:%) Example 1 Comparative Example 1 After applying 100.0 100.0 30 minutes after application 185.7 168.9 2 hours after application 178.6 154.4 4 hours after application 155.0 136.8 8 hours after application 138.2 123.0

[0051] From the above Table 4 and Figure 4 It can be confirmed that the skin moisture content of Example 1 is about 15% higher on average than that of Comparative Example 1. Therefore, it can be confirmed that Example 1 prevents the evaporation of moisture from the skin better than Comparative Example 1, thereby having an excellent effect of preventing skin dryness and a strong moisturizing ability.

[0052] Experimental Example 3: Sensory Evaluation

[0053] 21 professional female panelists aged 20-50 were divided into two groups, and Example 1 and Comparative Example 1 were applied to the forearm. The spreadability, nutritional sense, tightness, gloss and overall satisfaction felt during application were then evaluated according to the following evaluation criteria. The results are shown in Table 5 below. In the above criteria, spreadability refers to the feeling of the composition being spread on the skin. Stickiness refers to the degree of stickiness after an appropriate amount of the composition is applied to the skin surface and absorbed by the skin when applied on the skin. Gloss refers to the glossiness of the skin when applied on the skin. The above four criteria improve the use value as a cosmetic, and in particular, nutritional sense and gloss can be used as important features of the present invention.

[0054] Evaluation Criteria

[0055] ◎: Rated as excellent by more than 20 women;

[0056] ○: Rated as excellent by 11-19 women;

[0057] △: Rated as excellent by 6-10 women;

[0058] X: Rated excellent by 5 or fewer women.

[0059] Table 5

[0060] Example 1 Comparative Example 1 Spreadability ◎ △ Nutritional sense ○ △ Sticky feeling ◎ ○ luster ◎ △ Overall satisfaction ◎ △

[0061] From the above Table 5, it can be confirmed that Example 1 was evaluated higher in spreadability, nutritional feeling, viscosity, gloss and overall satisfaction than Comparative Example 1. In particular, Example 1 contained a certain ratio (w / w) of castor seed oil, hydrogenated castor oil, vegetable wax and plant-derived oil, and thus was evaluated higher in nutritional feeling and gloss, but Comparative Example 1 contained mineral components, and thus was evaluated lower in nutritional feeling and gloss.

Claims

1. A non-aqueous ointment cosmetic composition, comprising castor seed oil, hydrogenated castor oil, vegetable wax and plant-derived oil, wherein the weight ratio of the castor seed oil to the hydrogenated castor oil is 7:3 to 8:2, and relative to the total weight of the cosmetic composition, the content of the castor seed oil is 55-70% by weight, and the content of the hydrogenated castor oil is 15-35% by weight.

2. The non-aqueous ointment cosmetic composition according to claim 1, characterized in that: The castor seed oil is in liquid form.

3. The non-aqueous ointment cosmetic composition according to claim 1, characterized in that: The hydrogenated castor oil is in solid form.

4. The non-aqueous ointment cosmetic composition according to claim 1, characterized in that: The plant wax is at least one selected from the group consisting of sunflower wax, rice bran wax, and candelilla wax.

5. The non-aqueous ointment cosmetic composition according to claim 1, characterized in that: The content of the plant wax is 1.0-3.0 wt % relative to the total weight of the cosmetic composition.

6. The non-aqueous ointment cosmetic composition according to claim 1, characterized in that: The plant-derived oil is selected from at least one of the group consisting of camellia seed oil, dicaprylyl ether, apple seed oil, hydrogenated coconut oil, sunflower seed oil and olive oil.

7. The non-aqueous ointment cosmetic composition according to claim 1, characterized in that: The content of the plant-derived oil is 9.0-14.0 wt % relative to the total weight of the cosmetic composition.

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