KR102395902B1 - Transparent cosmetic composition - Google Patents

Abstract

The present invention relates to a low-viscosity, stable solubilization type cosmetic composition using hydrogenated lysolecithin, and in detail, the cosmetic composition according to the present invention can increase stability over time, and has a light feeling of use and is gentle on the skin. It is expected that it can be universally used in various aspects of a low-viscosity transparent cosmetic composition because it can provide a feeling of softness and moisture at the same time.

Description

Transparent cosmetic composition {TRANSPARENT COSMETIC COMPOSITION}

The present invention relates to a transparent cosmetic composition, and more particularly, to a low-viscosity stable solubilization type cosmetic composition using hydrogenated lysolecithin.

Cosmetics can be generally divided into basic cosmetics, makeup cosmetics, hair cosmetics, fragrance cosmetics, and body cosmetics, and are classified into solubilized products, emulsified products, and dispersed products depending on the formulation. Basic cosmetics are also classified according to their viscosity, starting with skin lotions with very low viscosity, liquid-viscosity mists, medium-viscosity lotions, high-viscosity essences, and very high-viscosity creams. have been manufactured

Recently, as the boundary between lotion and essence gradually disappears, low-viscosity emulsions are being developed as formulations for differentiating the feeling of use from them. Generally used low-viscosity emulsions include a low-viscosity solubilizing type that does not use an emulsifier and a low-viscosity emulsifying type that uses an emulsifier.

The low-viscosity solubilizing type that does not use an emulsifier can give a clear and refreshing feeling of use, but it is difficult to give moisture to the skin for a long time due to its low flexibility. In addition, most low-viscosity solubilizing types use an excess of ethanol to dissolve and solubilize fragrances and oily ingredients that are not easily soluble in water, so it causes irritation to the skin for consumers with very dry or sensitive skin. also do

On the other hand, the low-viscosity emulsification type using an emulsifier is a thermodynamically very stable translucent or transparent emulsified formulation that is formed by using a significant amount of surfactant, auxiliary surfactant, and water in a large amount of oil, unlike the low-viscosity solubilization type. . It can contain a large amount of oil, so it can provide excellent moisturizing feeling by increasing the flexibility of the skin. Since the concentration of the surfactant must be higher than that of the emulsion, there is a high possibility of causing skin irritation.

In order to solve these problems, various novel emulsion formulations are being studied. As one aspect of the research according to this, a nanoemulsion formulation using an inversion temperature emulsification method can be mentioned (Non-Patent Document 1). By using the in-phase temperature emulsification method, the interfacial tension between oil-surfactant-water is extremely low, so that fine emulsified particles can be easily prepared with relatively little energy. However, in order to prepare a stable nanoemulsion through the inversion temperature emulsification method known as the CAPICO method, there are restrictions on the type and content of the oil and surfactant to be used. Therefore, in order to calculate the optimum inversion temperature range that can maximize long-term stability, it is necessary to calculate the type and content of the optimum surfactant for the oil to be used using a specially designed calculation formula. In other words, the type and amount of surfactant calculated by the CAPICO method only suggests the starting point for conducting the experiment.

In another aspect, an amphiphilic block copolymer, a nanoemulsion formulation using an amphiphilic material such as lecithin may be used. However, in the case of such a nanoemulsion formulation, although it exists in a stably dispersed form in the beginning, there are problems such as aggregation and precipitation between particles or a decrease in transparency according to change over time. To solve this problem, a thickener (eg, a water-soluble polymer) may be additionally added, but it is impossible to implement a low-viscosity emulsion due to an increase in viscosity.

Therefore, it is necessary to develop a cosmetic composition for universal application of a low-viscosity transparent cosmetic composition according to the recent needs in the cosmetic industry.

Inter. J.　Cosmet. Sci.1994,　16, 84-92

An object of the present invention is to provide a cosmetic composition having excellent stability on the skin as well as formulation stability despite a low-viscosity, transparent formulation by revealing the interaction between an amphiphilic substance and oil and using the same.

For the above-mentioned purpose, the present invention may comprise the following means.

The cosmetic composition according to an embodiment of the present invention is a cosmetic composition of a transparent solubilizing formulation, and may include a polar oil, hydrogenated lysolecithin, and water, and satisfy the following Relational Equation 1.

[Relational Expression 1]

95%≤T ₁

[In the above relation 1,

T ₁ is the light transmittance at 600 nm light]

The cosmetic composition according to an embodiment of the present invention may include 0.5 to 3% by weight of polar oil, 0.1 to 0.9% by weight of hydrogenated lysolecithin, and the remainder of water, based on the total weight of the composition.

The cosmetic composition according to an embodiment of the present invention may have an average particle diameter (D ₁ ) of the initial dispersion particles of 10 to 80 nm.

In the cosmetic composition according to an embodiment of the present invention, the polar oil and the hydrogenated lysolecithin may satisfy the following relational formula (2).

[Relational Expression 2]

1.0 ≤W _A /W _B ≤2.0

[In the above relation 2,

W _A is the weight (g) of the polar oil,

W _B is the weight (g) of hydrogenated lysolecithin]

The stability of the cosmetic composition according to an embodiment of the present invention may satisfy the following relational expression (3).

[Relational Expression 3]

1.5 ≤ D ₂ /D ₁ ≤ 2.0

[In the above relation 3,

D ₁ is the average particle diameter of the initial dispersion particles,

D ₂ is the average particle diameter of the dispersion particles after 100 days under the condition of 20°C, and the polydispersity of the dispersion particles is 0.12 or less]

In the cosmetic composition according to an embodiment of the present invention, the polar oil may be one or a mixture of two or more selected from an alcohol-based polar oil having 12 to 25 carbon atoms and a triglyceride-based polar oil.

The cosmetic composition according to an embodiment of the present invention may be substantially free of a surfactant.

The cosmetic composition according to an embodiment of the present invention may further include a polyol.

The cosmetic composition according to an embodiment of the present invention may have a viscosity in the range of 20 to 1,000 cps.

The cosmetic composition according to an embodiment of the present invention may be formulated with a low-viscosity water-type formulation, for example, a softening lotion, a nutrient lotion, an essence, or a mist.

According to the present invention, by using hydrogenated lysolecithin, which is an amphiphilic material, which is a nature-friendly component, without using a surfactant, a transparent formulation with low viscosity can be implemented.

In addition, according to the present invention, it is possible to increase the stability according to the change with time, as well as to provide a feeling of softness and moisture to the skin while being light in use, so it is effective.

In addition, according to the present invention, it is possible to overcome the limitation of the feeling of use due to the use of an excess of ethanol or surfactant used to implement a transparent formulation.

In short, according to the present invention, it is possible to provide a cosmetic composition having excellent emulsion stability even at low viscosity without irritation to the skin, which is a low-viscosity formulation and exhibits a fresh feeling of use without stickiness. It is expected that it can be used as

Hereinafter, the transparent cosmetic composition according to the present invention will be described in detail, but unless otherwise defined in technical terms and scientific terms used at this time, it has a meaning commonly understood by those of ordinary skill in the art to which this invention belongs, In the following description, descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted.

As used herein, the term "transparency" refers to the extent to which the shape and color do not change when an object is viewed through the composition (medium), as well as a UV-VIS spectrophotometer (SHIMADZU, UV-2500PC UV- Using VIS REDCORDING SPECTROPHOTOMETER), it means that the transmittance for the visible light region (wavelength 600 nm) in the 1 cm × 1 cm quartz cell is in the range of 95% or more.

As used herein, the term "low viscosity" means a viscosity in the range of 20 to 1,000 cps (centi poise), and the viscosity is at room temperature (using a Brookfield RVDV-III) viscometer spindle #3 ( 23° C.), the composition (sample) was deposited and measured at 30 rpm for 1 minute.

As used herein, the term "stability" encompasses the stability of the initial formulation of the composition, the stability of the formulation according to long-term storage, and in the present specification, the change in the visible light transmittance of the composition, the change in the particle size of the dispersion particles, the There is no or insignificant change in the appearance of the composition due to a change in polydispersity index (PDI), etc., so that the state of the initial formulation is stably maintained.

In general, lecithin has a structure having a hydrophobic portion and a hydrophilic portion at the same time, and may have similar behavior to a surfactant. Accordingly, a dispersion is formed using lecithin, or a liposome or lamellar liquid crystal structure is formed by combining it with fatty acids and lipid components.

On the other hand, hydrogenated lecithin has excellent chemical stability as the unsaturated group is removed, and has been used in various formulations because acid waste or change in odor does not occur even if it exists in an aqueous dispersion state. Hydrogenated lecithin can be used as a major component of cosmetic compositions and drug delivery systems for reasons of amphiphilicity and excellent biocompatibility. will form Liposomes with a large radius of curvature have a dispersion having a large hydrodynamic size or particle diameter, and a dispersion having a large particle diameter has a problem in that aggregation (unification) or precipitation of the dispersion occurs over time.

To solve this problem, the packing parameters were corrected through auxiliary molecules such as fatty acids or cholesterol to improve transparency and improve stability by implementing a dispersion with a small particle size, but it was still difficult to overcome the aggregation or precipitation phenomenon over time.

As a result of the present inventors intensifying research on a low-viscosity transparent cosmetic composition with excellent stability, a very stable dispersion can be formed when hydrogenated lysolecithin, an amphiphilic substance, which is a nature-friendly component, is combined with a predetermined oil component. found that there is

In detail, by using hydrogenated lysolecithin with a small steric hindrance as part of a study to implement a stable dispersion using hydrogenated lecithin, a dispersion of 80 nm or less can be stably formed, and surprisingly, in terms of long-term stability, The present invention was completed by discovering that a monodisperse dispersion having a narrow particle size distribution without any aggregation or precipitation phenomenon was produced.

Moreover, the present inventors have paid attention to the fact that oil having a high content can be stably dispersed compared to hydrogenated lysolecithin, and it has been confirmed that excellent moisturizing feeling can be provided by increasing flexibility through this. That is, according to the present invention, it is possible to overcome the limit of the feeling of use of the low-viscosity solubilized type or the low-viscosity emulsified type.

The cosmetic composition according to an embodiment of the present invention is a predetermined combination devised by confirming the interaction between hydrogenated lysolecithin, an amphiphilic substance, and oil. This may be an aspect of the existing low-viscosity emulsification type, but as it satisfies a predetermined combination, it not only maintains excellent formulation stability even at low viscosity, but also provides excellent softness and moisture to the skin with a fresh feeling of use at the same time.

Hereinafter, the configuration of the present invention will be described in detail.

The cosmetic composition according to an embodiment of the present invention is a cosmetic composition of a transparent solubilizing formulation, and may include a polar oil, hydrogenated lysolecithin, and water, and satisfy the following Relational Equation 1.

[Relational Expression 1]

95%≤T ₁

[In the above relation 1,

T ₁ is the light transmittance at 600 nm light.]

The cosmetic composition according to the present invention includes a polar oil, hydrogenated lysolecithin and water, and provides a stable cosmetic composition of a transparent solubilizing formulation having a visible light transmittance (light transmittance) of 95% or more in a wavelength range of 600 nm.

The cosmetic composition according to an embodiment of the present invention may include 0.5 to 3% by weight of polar oil, 0.1 to 0.9% by weight of hydrogenated lysolecithin, and the remainder of water, based on the total weight of the composition.

As an example, the cosmetic composition is a low-viscosity water-type formulation in terms of implementing excellent transparency, specifically, 0.5 to 2% by weight of polar oil, 0.3 to 0.8% by weight of hydrogenated lysolecithin, and the remaining amount of water. It may include, and more specifically, 0.5 to 1.5% by weight of polar oil, 0.3 to 0.5% by weight of hydrogenated lysolecithin and the remaining amount of water.

When the above-mentioned content is satisfied, a dispersion having an average particle diameter (D ₁ ) of the dispersion particles is 80 nm or less, and the dispersion particles are specifically 30 to 80 nm, more specifically 50 to 80 nm. can

When the above content is satisfied, it is possible to provide a cosmetic composition of a transparent solubilization formulation having a visible light transmittance (light transmittance) of 97% to 99% in a wavelength range of 600 nm.

Moreover, as the cosmetic composition according to an embodiment of the present invention contains polar oil and hydrogenated lysolecithin to satisfy the following relation 2, it is possible to implement a smaller average particle diameter of the dispersion particles as well as to implement improved stability. preferred in terms of

[Relational Expression 2]

1.0 ≤W _A /W _B ≤2.0

[In the above relation 2,

W _A is the weight (g) of the polar oil,

W _B is the weight (g) of hydrogenated lysolecithin]

For example, the cosmetic composition may contain 0.3 to 0.8% by weight of hydrogenated lysolecithin based on the total weight of the composition, and W _A /W _B may satisfy 1.5 to 2.0.

For example, the cosmetic composition may contain 0.3 to 0.5% by weight of hydrogenated lysolecithin based on the total weight of the composition, and W _A /W _B may satisfy 1.8 to 2.0.

That is, it should be noted that the cosmetic composition according to the present invention can stably disperse a high content of polar oil corresponding to the same amount or more compared to the amount of hydrogenated lysolecithin used, when a predetermined component satisfies an appropriate content.

The cosmetic composition according to an embodiment of the present invention is a low-viscosity, transparent formulation that not only provides a fresh and light feeling of use, but also contains a high content of polar oil compared to hydrogenated lysolecithin, so that it can provide flexibility and moisture to the skin at the same time. there is.

The stability of the cosmetic composition according to an embodiment of the present invention can be confirmed by a change in the composition's appearance due to a change in the light transmittance of the composition, a change in the particle size of the dispersion particles, a change in the polydispersity (PDI) of the dispersion particles, etc. .

As an example, the stability of the cosmetic composition may satisfy the following Relational Equation 3, thereby providing a stable dispersion without change in appearance.

[Relational Expression 3]

1.5 ≤ D ₂ /D ₁ ≤ 2.0

[In the above relation 3,

D ₁ is the average particle diameter of the initial dispersion particles,

D ₂ is the average particle diameter of the dispersion particles after 100 days under the condition of 20° C., and the polydispersity (P ₂ ) of the dispersion particles after 100 days is 0.12 or less]

Preferably, the cosmetic composition may have an average particle diameter (D ₁ ) of the initial dispersion particles of 30 to 80 nm, which satisfies the above relational formula (3).

More preferably, the cosmetic composition may have an average particle diameter (D ₁ ) of the initial dispersion particles of 50 to 80 nm, which satisfies Relation 3 above.

In the cosmetic composition according to an embodiment of the present invention, the polydispersity (P ₂ ) of the dispersion particles after 100 days may be preferably in the range of 0.80 to 0.11, and more preferably in the range of 0.80 to 0.10. .

As an example, the stability of the cosmetic composition may satisfy the following Relational Equation 4, thereby providing a stable dispersion without change in appearance.

[Relational Expression 4]

0.3≤ P ₂ /P ₁ ≤ 0.55

[In the above relation 4,

P ₁ is the polydispersity of the initial dispersion particles,

P ₂ is the polydispersity of the dispersion particles after 100 days under the condition of 20°C]

Preferably, the cosmetic composition may have an average particle diameter (D ₁ ) of the initial dispersion particles of 30 to 80 nm, and a P ₂ /P ₁ value of 0.3 to 0.50.

More preferably, the cosmetic composition may have a P ₂ /P ₁ value of 0.3 to 0.45.

In this case, as the P ₂ /P ₁ value is smaller, it means that the polydisperse particles converge to a monodisperse dispersion. In detail, as the polydispersity value (P value) is large, it means that the particle size distribution of the particles is widely distributed, and as the P value is small, the particle size distribution of the particles is distributed narrowly, so that the particles of the dispersion converge to the average particle size and become single It means to increase acidity.

In the present invention, the initial dispersion particles have a high polydispersity, but after 100 days there is no loss in transparency and P ₂ /P ₁ has a low value, so that it is transferred to monodispersity, and no precipitation phenomenon occurs It can show excellent effect.

In the cosmetic composition according to an embodiment of the present invention, the polar oil may be one or a mixture of two or more selected from an alcohol-based polar oil having 12 to 25 carbon atoms and a triglyceride-based polar oil.

Preferably, the cosmetic composition comprises at least one polar oil selected from an alcohol-based polar oil having 12 to 25 carbon atoms and a triglyceride-based polar oil; hydrogenated lysolecithin; and water, and may satisfy Relation 1 above.

The alcohol-based polar oil may be a straight or branched chain higher alcohol having 12 to 25 carbon atoms, specifically, a straight or branched chain higher alcohol having 15 to 25 carbon atoms, and more specifically, behenyl alcohol. , 　 may be octyldodecanol or a mixture thereof.

The triglyceride-based polar oil may include a straight or branched chain fatty acid group having 7 to 25 carbon atoms, and specifically, caprylic / capric / myristic / stearic triglyceride (Caprylic / Capric / Linoleic Triglyceride), Caprylic/Capric/Myristic/Stearic Triglyceride, Caprylic/Capric/Succinic Triglyceride, Caprylic/Ca Caprylic/Capric/Stearic Triglyceride, glyceryl trioctanoate, caprylic/capric triglyceride, butylene glycol dicaprylate/caprate (butylene glycol dicaprylate/caprate), trioctanoin, or a mixture thereof, and more specifically, caprylic/capric triglyceride.

The cosmetic composition according to an embodiment of the present invention may be substantially free of a surfactant. Substantially not containing the surfactant is a case in which the surfactant is included as an impurity.

For example, when a surfactant is further included in the cosmetic composition according to the present invention, the average particle diameter (D ₁ ) of the dispersion particles may be larger, and aggregation between the particles occurs rapidly with time change, and light during long-term storage A change in transmittance may cause disadvantages in formulation, such as turbidity observed. This is presumed to disturb the structure of the dispersion interfacial film as the surfactant is added to the cosmetic composition according to the present invention, resulting in disadvantages in the particle size of the initial dispersion particles and their stability.

The cosmetic composition according to an embodiment of the present invention may further include a polyol for improved stability of the composition.

The polyol is not limited as long as it is a conventional material, and examples thereof include inositol, mannitol, xylitol, glycerin, sorbitol, pentyl glycol, 1,3-butylene glycol, propylene glycol, and dipropylene glycol. In this case, of course, the polyol may be used alone or as a mixture of two or more.

As an example, the polyol may be included in an amount of 3 to 50% by weight based on the total weight of the composition, and specifically 5 to 40% by weight, more specifically 10 to 30% by weight for improved stability of the composition. may be, but is not limited thereto.

The cosmetic composition according to an embodiment of the present invention may be formulated with a low-viscosity water-type formulation, for example, a softening lotion, a nutrient lotion, an essence, or a mist.

For example, the cosmetic composition may have a viscosity in the range of 20 to 1,000 cps, specifically in the range of 50 to 800 cps, and more specifically in the range of 150 to 600 cps.

For example, the cosmetic composition may be formulated as a low-viscosity water-type formulation, and may be formulated as a molecular cosmetic composition such as an aerosol or a spray.

In addition, it goes without saying that the cosmetic composition according to an embodiment of the present invention may further include additional additives in addition to the above-described components as long as the object of the present invention is not impaired. In this case, the additive is not limited as long as it is a conventional component, but for example, a solubilizer, a thickener, an emollient, an antioxidant, a stabilizer, a foaming agent, a fragrance, a filler, a sequestering agent, a chelating agent, a preservative, a vitamin, a skin protectant, a metal sequestering agents, wetting agents, dyes, pigments, and the like, but are not limited thereto.

Hereinafter, a transparent cosmetic composition according to an embodiment of the present invention will be described in more detail through examples. However, the following examples are only a reference for describing the present invention in detail, and the present invention is not limited thereto, and may be implemented in various forms. In addition, the unit of components not specifically described in the specification may be g or weight % based on the total composition.

(Assessment Methods)

1. Measurement of light transmittance

The light transmittance of each sample (Example and Comparative Example) was measured using a UV-VIS spectrophotometer (manufactured by SHIMADZU, UV-2500PC UV-VIS REDCORDING SPECTROPHOTOMETER), in the visible region of 1 cm × 1 cm quartz cell. It was measured as the light transmittance with respect to (wavelength 600nm), and the value is shown in Table 1 below.

In this case, the closer the light transmittance is to 100%, the more transparent it means.

2. Stability evaluation

In order to evaluate the stability of each sample (Example and Comparative Example), a change in the light transmittance of each sample and a change in the average particle diameter of the dispersion particles were checked.

Each sample is subjected to a refrigeration thermostat (4±2℃), a freezing thermostat (-20±2℃), a high temperature thermostat (45±2℃) and a cycle chamber (Freeze-Thaw Chamber, -20℃ to 45℃ once a day) cycle), and the light transmittance and the average particle diameter of the dispersion particles were measured at intervals of one week. In addition, the average particle diameter of the dispersion particles was observed for 100 days.

First, the change in the light transmittance of the composition was expressed as a relative value based on the light transmittance (T ₁ ) of the initial composition, and the light transmittance was measured according to the light transmittance measurement method.

Next, the change in the average particle diameter of the dispersion particles was expressed as a relative value based on the average particle diameter (D ₁ ) of the initial dispersion particles. It was fixed again and measured at room temperature (23°C). In addition, the polydispersity (PDI) of the dispersion particles is a value measured by a cumulative method using a zetasizer, and the smaller the polydispersity value of the dispersion particles, the narrower the particle size distribution.

The values measured by the method described above and the changes in the light transmittance for each sample calculated therefrom are shown in Tables 2 and 3 below as percentages, and the changes in the average particle diameter of the dispersion particles for each sample (average particle diameter and polydispersity) Figure) is shown in Tables 2 and 3 below.

3. Viscosity Measurement

To measure the viscosity of each sample (Example and Comparative Example), a Brookfield RVDV-III viscometer was used. At this time, the measurement conditions of the viscometer were measured by placing the sample at room temperature (23° C.) using a spindle #3 at 30 rpm for 1 minute, and the values are shown in Table 1 below.

(Examples 1 to 4)

Using the ingredients in Table 1 below, a cosmetic composition was prepared through the following method.

(1) All the aqueous phase components were mixed and dissolved by heating to 90°C, followed by cooling to 60°C.

(2) The oil phase component was added to the aqueous phase component and stirred at 5,000 rpm for 5 minutes using a homomixer to prepare a cosmetic composition.

(Comparative Examples 1 to 4)

Using the ingredients of Table 1 below, a cosmetic composition was prepared in the same manner as in the above Example.

As shown in Table 1, according to the present invention, it was confirmed that a low-viscosity transparent cosmetic composition can be implemented, as well as excellent stability.

Specifically, according to the present invention, it is possible to form a dispersion having an average particle diameter of an initial dispersion particle of 80 nm or less in spite of not using a surfactant, as well as a slight change in the average particle diameter of the dispersion particles even with time change, , it was confirmed that the polydispersity of the dispersion particles was significantly reduced. In addition, it was confirmed that according to the present invention, it was possible to maintain a thermodynamically very stable dispersion that does not cause turbidity due to changes in light transmittance even with time change (see Tables 2 and 3).

On the other hand, in the case of the cosmetic compositions (Comparative Examples 2 and 3) containing hydrogenated lysolecithin and a surfactant at the same time, it was confirmed that aggregation of the particles according to the change over time was faster compared to the cosmetic composition according to the present invention.

In addition, in the case of the cosmetic composition containing only hydrogenated lecithin (Comparative Example 4), it was confirmed that the average particle diameter of the initial dispersion particles was formed large, and the aggregation of the particles according to the change over time proceeded rapidly.

In addition, in the case of the cosmetic composition (Comparative Example 1) containing hydrogenated lecithin and a surfactant at the same time, the average particle diameter of the initial dispersion particles was small, but it was confirmed that aggregation of the particles proceeded rapidly according to the change over time.

As described above, the present invention has been described by specific matters and limited embodiments, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments, and the field to which the present invention belongs Various modifications and variations are possible from these descriptions by those of ordinary skill in the art.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

Claims (10)

A cosmetic composition of a transparent solubilizing formulation comprising a dispersion formed by a combination of polar oil and hydrogenated lysolecithin,
It contains the polar oil, hydrogenated lysolecithin and water, but does not contain a surfactant, and satisfies the following relational formula 1,
The polar oil is a straight or branched chain higher alcohol having 12 to 25 carbon atoms, caprylic / capric / myristic / stearic triglyceride (Caprylic / Capric / Linoleic Triglyceride), caprylic / capric / myristic / stearate Caprylic/Capric/Myristic/Stearic Triglyceride, Caprylic/Capric/Succinic Triglyceride, Caprylic/Capric/Stearic Triglyceride (Caprylic/Capric/Stearic Triglyceride) Stearic Triglyceride, glyceryl trioctanoate, caprylic/capric triglyceride, butylene glycol dicaprylate/caprate, trioctanoin (trioctanoin) or a cosmetic composition of a mixture thereof.
[Relational Expression 1]
95%≤T ₁
[In the above relation 1,
T ₁ is the light transmittance in the wavelength range of 600 nm] The method of claim 1,
The composition is
Based on the total weight of the composition, a cosmetic composition comprising 0.5 to 3% by weight of polar oil, 0.1 to 0.9% by weight of hydrogenated lysolecithin, and the remaining amount of water. 3. The method of claim 2,
The composition is
The average particle diameter of the dispersion particles in the composition on day 0 after preparing the composition (D ₁ ) is a cosmetic composition of 10 to 80 nm. The method of claim 1,
The polar oil and hydrogenated lysolecithin are
A cosmetic composition satisfying the following relation (2).
[Relational Expression 2]
1.0 ≤W _A /W _B ≤2.0
[In the above relation 2,
W _A is the weight (g) of the polar oil,
W _B is the weight (g) of hydrogenated lysolecithin] The method of claim 1,
The stability of the composition is,
A cosmetic composition satisfying the following relation (3).
[Relational Expression 3]
1.5 ≤ D ₂ /D ₁ ≤ 2.0
[In the above relation 3,
D ₁ is the average particle diameter of the initial dispersion particles,
D ₂ is the average particle diameter of the dispersion particles after 100 days under the condition of 20°C, and the polydispersity of the dispersion particles is 0.12 or less] delete delete The method of claim 1,
The composition is
A cosmetic composition further comprising a polyol. The method of claim 1,
The composition is
A cosmetic composition having a viscosity of 20 to 1,000 cps. The method of claim 1,
The composition is
A cosmetic composition formulated as a softening lotion, nutrient lotion, essence or mist.