KR20230046096A - Cosmetic composition for moisturizing lips comprising micro-liposome - Google Patents

Abstract

The present invention relates to a cosmetic composition for moisturizing the lips, wherein the composition does not contain wax or a film forming agent to have a thin and soft feeling when used, and by containing a large amount of oil, spreadability and moisturizing feeling can be improved. The cosmetic composition for moisturizing the lips comprises first liposomes containing liquid oil and second liposomes containing phytosterol.

Description

Cosmetic composition for moisturizing lips comprising micro-liposome

It relates to a cosmetic composition for moisturizing lips.

As the weather gets colder, more and more people are complaining of chapped or chapped lips due to the cold wind and dry air. In particular, as the pandemic situation due to COVID-19 prolongs, the mask must be worn for a long time, and the heat in the mask causes dead skin cells on the lips, so the demand for care products for this is increasing.

On the other hand, tints of water-dispersible formulations have excellent coloring power but poor moisturizing power, so a lip gloss with a very high oil content or a moisturizer in a stick/balm formulation must be additionally applied to prevent the lips from drying out after use. However, in the case of lip gloss, oil, wax, film forming agent, etc. are contained in large amounts, so there is a disadvantage in that the lips feel stuffy and sticky after application.

Therefore, there is a need to develop a cosmetic composition for moisturizing lips that can have a thin and soft feeling while enhancing moisturizing power by including a high content of oil.

One aspect is to provide a cosmetic composition for moisturizing lips comprising a first liposome containing liquid oil and a second liposome containing phytosterol.

One aspect provides a cosmetic composition for moisturizing lips comprising a first liposome containing liquid oil and a second liposome containing phytosterol.

As used herein, the term "liposome" is a skin delivery system having a size of 150 to 350 nm carrying skin active ingredients therein, and helps effective absorption of the active ingredients by penetrating the cell wall of the skin. The first liposome contains liquid oil to provide a sense of closeness, keep the skin soft and flexible, and improve skin moisturizing. In addition, since the second liposome contains phytosterol, it is possible to maintain healthy, chapped or peeling lips. Therefore, the cosmetic composition for moisturizing the lips can provide a moisturizing feeling to the lips and relieve keratin of the lips by including the first liposome and the second liposome containing different active ingredients, so that not only can keep the lips moist, but also It can have a thin and soft feeling. In one embodiment, the first liposome and the second liposome are included in a dispersed form in the aqueous phase. Therefore, the cosmetic composition may be an oil-in-water (O/W) emulsified cosmetic composition. In another embodiment, the first liposome and the second liposome may be included in 60 to 90% by weight based on the total weight of the composition. The first liposome and the second liposome are, for example, 40 to 90% by weight, 60 to 85% by weight, 60 to 70% by weight, 65 to 90% by weight, 65 to 80% by weight, 40 to 90% by weight, based on the total weight of the composition. 70% by weight or 70 to 80% by weight. At this time, when the content of the first liposome and the second liposome is less than the above range, there is a problem that not only cannot sufficiently exhibit the moisturizing effect, but also it is difficult to implement a thin feeling of use. When the content exceeds the above range, phase separation occurs to achieve stable There is a problem that it is difficult to implement the formulation. In another embodiment, the first liposome and the second liposome may be included in a weight ratio of 1:0.1 to 5. The first liposome and the second liposome may be included in a weight ratio of 1:0.1 to 6, 1:0.1 to 3, 1:0.1 to 2, 1:0.1 to 1, 1:0.5 to 3, or 1:1 to 5. . At this time, when the mixing ratio of the first liposome and the second liposome is less than the above range, there is a problem that the lip moisturizing effect cannot be sufficiently exhibited, and when it exceeds the above range, a thin and soft feeling cannot be implemented.

The liquid oil is an oil in a liquid state at room temperature, for example, squalane, diisostearyl malate, pentaerythrityl tetraisostearate, hydrogenated polydecene ( hydrogenated polydecene) and the like. In one embodiment, the liquid oil may be included in an amount of 10 to 60% by weight based on the total weight of the first liposome. The liquid oil is 10 to 60% by weight, 10 to 55% by weight, 10 to 50% by weight, 15 to 40% by weight, 15 to 35% by weight, 20 to 45% by weight, 30 to 40% by weight based on the total weight of the first liposome It may be included in weight percent or 40 to 60 weight percent. At this time, when the content of the liquid oil exceeds the above range, phase separation between the first liposome and the second liposome occurs, resulting in poor formulation stability. In another embodiment, the liquid oil may be a mixture of diisostearyl malate and hydrogenated polydecene.

The phytosterols are plant sterols, structurally similar to cholesterol synthesized in animals, and have effects such as wound healing and inflammation removal. The phytosterol may be, for example, beta-sitosterol, beta-sitostanol, campesterol, stigmasterol, and the like. In one embodiment, the phytosterols may be included in an amount of 0.1 to 10% by weight based on the total weight of the second liposome. The phytosterol is present in an amount of, for example, 0.1 to 10% by weight, 0.1 to 8% by weight, 0.1 to 5% by weight, 1 to 7% by weight, 2 to 8% by weight, 3 to 6% by weight, based on the total weight of the second liposome. It may be included in 4 to 9% by weight. At this time, when the content of the phytosterol is less than the above range, there is a problem that the dead skin cell improvement and lip moisturizing effect cannot be sufficiently exhibited, and when it exceeds the above range, stability problems such as discoloration and phase separation may occur. In another embodiment, since the second liposome contains beta-sitosterol, it is not only effective in improving dead skin cells, but also can improve the moisturizing ability of the lips themselves when used continuously for a short period of time.

In one embodiment, the cosmetic composition may further include a viscosity modifier. The viscosity modifier is, for example, carbomer, acrylate/C10-30 alkylacrylate crosspolymer, ammonium acryloyldimethyltaurate/VP copolymer, ammonium acryloyldimethyltaurate/beheneth-25 methacrylate Crosspolymer, hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer, sodium polyacrylate, polyacrylate crosspolymer-6, xanthan gum, gelatin, guar gum, cassia gum, gellan gum, carob bean gum, agar , algin, mannan, pectin, cellulose, and the like.

In one embodiment, the cosmetic composition may not contain wax and/or a film forming agent. Although the cosmetic composition contains an oil phase with a content similar to that of the conventional cosmetic composition for moisturizing lips, the oil phase is dispersed in the aqueous phase in the form of liposomes and does not contain wax and film forming agents, so it has a thin and soft feel. You can feel it, and you can get a feeling of moist application and moisturizing feeling that remains for a long time.

The cosmetic composition includes all types of formulations usable for lips, and may be formulated in the form of, for example, lipstick, lip gloss, lip balm, lip lacquer, lip tint, lip pencil, and the like. In addition, depending on the formulation to be prepared, oil, water, surfactant, moisturizer, lower alcohol, thickener, chelating agent, preservative, fragrance, etc. may be selected and added. In addition, it may include a sunscreen, a light scattering agent, and the like, and the formulation and additives are not limited to the above. In addition, the components may be introduced in an amount generally used in the field of skin science.

The cosmetic composition may be further added by selecting ingredients included in conventional emulsified cosmetic compositions, that is, moisturizing ingredients such as antioxidants, polyhydric alcohols, and hyaluronic acid, various vitamins, preservatives, colorants, fragrances, and sunscreen ingredients. can

Another aspect provides a method for preparing a cosmetic composition for moisturizing lips comprising a first liposome containing liquid oil and a second liposome containing phytosterol. In one embodiment, the method comprises preparing a first liposome after mixing and dispersing the liquid oil and emulsifying it; and preparing a second liposome after mixing and dispersing and emulsifying phytosterol and polyol; and injecting and dispersing the first liposome and the second liposome to the aqueous phase.

The cosmetic composition for moisturizing the lips according to one aspect does not contain wax and film forming agents, so it shows a thin and soft feeling of use, and can improve application and moisturizing feeling by including a large amount of oil. In addition, when used continuously for a short period of time, it is possible to improve dead skin cells and moisturizing power of the lips themselves.

1 is a photograph confirming the keratin improvement effect of a cosmetic composition for moisturizing lips according to one aspect.
Figure 2 is a graph measuring the degree of skin moisture before and after application of the cosmetic composition for moisturizing the lips according to one aspect.
Figure 3 is a graph confirming the moisturizing durability of the cosmetic composition for moisturizing the lips according to one aspect.
Figure 4 is a graph confirming the effect of improving the lip self-moisturizing ability of the cosmetic composition for moisturizing the lips according to one aspect.

Hereinafter, a preferred embodiment is presented to aid understanding of the present invention. However, the following examples are provided to more easily understand the present invention, and the content of the present invention is not limited by the following examples.

[Production Example]

Preparation Example 1. Preparation of the first microliposome

A first microliposome containing the components and contents shown in Table 1 below was prepared. Specifically, each component of the oil phase was put in a batch and evenly dispersed at 80 to 85 ° C. for 3 minutes using an Agi-mixer. Each component of the aqueous phase was placed in another batch and dispersed in the same manner. Thereafter, the oil phase was added to the water phase, and emulsification was performed three times for 3 minutes using a high-pressure emulsifier. In this specification, unless otherwise indicated, the content is % by weight.

ingredient Content (% by weight) Paid Hydrogenated Polydecene 28 Diisostearyl Malate 12 Surfactants 9 Awards Purified water 49 antiseptic 2

Preparation Example 2. Preparation of the second micro-liposome

A second microliposome was prepared in the same manner as in Preparation Example 1, except that the components and contents in Table 2 below were included.

ingredient Content (% by weight) Paid Beta-sitosterol 5 polyol 25 natural oil 20 Surfactants 6 Awards Purified water 42 antiseptic 2

[Example]

Example 1. Preparation of cosmetic composition for moisturizing lips

A cosmetic composition for protecting lips including the components and contents of Table 3 below was prepared. Specifically, a pigment, an anti-discoloration agent, a moisturizer and a preservative were added to purified water and stirred for about 3 minutes to disperse. Thereafter, the microliposomes of Preparation Example 1 and Preparation Example 2 were sequentially added and dispersed for 5 minutes each, and then a viscosity modifier was added and dispersed for about 15 minutes at 7,000 rpm using a homogenizer.

ingredient Content (% by weight) Paid First Micro Liposome 60 Second micro liposome 10 Awards pigment One viscosity modifier 1.1 Purified water 19.55 anti-discoloration agent 0.05 moisturizer 5 antiseptic 3.3

[Experimental example]

Confirmation of keratin improvement effect

The keratin improvement effect of the cosmetic composition for moisturizing lips according to one aspect was confirmed. Specifically, after applying Example 1 once to the keratinized lips of a subject with severe keratin on the lips, it was confirmed whether or not keratin was improved.

1 is a photograph confirming the effect of improving keratin immediately after application of a cosmetic composition for moisturizing lips according to one aspect.

As a result, as shown in FIG. 1, it was confirmed that the lip keratin was effectively removed after use compared to before use of Example 1, and the surface of the lips was moistened. Therefore, the cosmetic composition for moisturizing the lips according to one aspect can improve the keratin of the lips to maintain moist and healthy lips.

Moisture retention check

The moisturizing durability of the cosmetic composition for moisturizing lips according to one aspect was confirmed. Specifically, after applying 8 μl of Example 1 to the inside of the lower arm (2 cm x 2 cm) of 5 subjects, the skin moisture level was measured immediately after application, 30 minutes, 2 hours, 4 hours and 8 hours later, and the arithmetic mean value derived.

Figure 2 is a graph measuring the degree of skin moisture before and after application of the cosmetic composition for moisturizing the lips according to one aspect.

Figure 3 is a graph confirming the moisturizing durability of the cosmetic composition for moisturizing the lips according to one aspect.

As a result, as shown in FIG. 2, it was confirmed that the skin moisture level immediately after application increased by about 388.9% compared to before application of Example 1. In addition, 30 minutes after application, the skin moisture content increased rapidly and gradually decreased over time, but it was confirmed that the skin moisture content was 150% or more until 8 hours after application, indicating a long-term moisturizing effect.

That is, the cosmetic composition for moisturizing the lips according to one aspect may not only exhibit an immediate moisturizing effect, but also continuously exhibit a moisturizing effect for a long period of time.

Check the effect of improving the moisturizing power of the lips themselves

The effect of improving the moisturizing power of the lips themselves by the cosmetic composition for moisturizing the lips according to one aspect was confirmed. Specifically, 5 subjects with severe lip keratin were asked to use Example 1 twice a day for 2 weeks. After 2 weeks, the skin moisture level of 5 subjects was measured.

Figure 4 is a graph confirming the effect of improving the self-moisturizing ability of the lips of the cosmetic composition for moisturizing the lips according to one aspect.

As a result, as shown in FIG. 4, after using Example 1, it was confirmed that the skin moisture level of the lips themselves was improved by 47.2% compared to before use. That is, the cosmetic composition for moisturizing the lips according to one aspect can sufficiently supply moisture to the lips to improve the moisturizing power of the lips themselves.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

Claims (8)

A cosmetic composition for moisturizing lips, comprising a first liposome containing liquid oil and a second liposome containing phytosterol. The method according to claim 1, wherein the liquid oil is a group consisting of squalane, diisostearyl malate, pentaerythrityl tetraisostearate, and hydrogenated polydecene. A cosmetic composition for protecting lips that is selected from. The cosmetic for moisturizing lips according to claim 1, wherein the phytosterol is selected from the group consisting of β-sitosterol, β-sitostanol, campesterol, and stigmasterol. composition. The cosmetic composition for moisturizing lips according to claim 1, wherein the first liposome and the second liposome are included in an amount of 40 to 90% by weight based on the total weight of the composition. The cosmetic composition for protecting lips according to claim 1, wherein the liquid oil is included in an amount of 10 to 60% by weight based on the total weight of the first liposome. The cosmetic composition for protecting lips according to claim 1, wherein the phytosterol is included in an amount of 0.1 to 10% by weight based on the total weight of the second liposome. The cosmetic composition for protecting lips according to claim 1, which does not contain a wax, a film forming agent, and/or a mixture thereof. The cosmetic composition for protecting lips according to claim 1, which is oil-in-water (O/W).

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