KR102311828B1 - Stabilized cometic composition comprising olyglyceryl based emulsifier - Google Patents

Abstract

The present invention relates to a stabilized cosmetic composition comprising a polyglyceryl-based emulsifier, and more specifically, to a stabilized cosmetic composition comprising a polyglyceryl-based emulsifier and sodium surfactin. The polyglyceryl-based emulsifier comprises one or more among polyglyceryl-4 caprate, polyglyceryl-10 laurate, and polyglyceryl-10 myristate. According to the present invention, the emulsion stability of a cream type cosmetic composition comprising silicone oil as a base is increased, excellent feeling of use is ensured, and safety to a human body due to natural ingredients is ensured.

Description

Stabilized cosmetic composition comprising a polyglyceryl emulsifier {STABILIZED COMETIC COMPOSITION COMPRISING OLYGLYCERYL BASED EMULSIFIER}

The present invention relates to a stabilized cosmetic composition comprising a polyglyceryl-based emulsifier, and more particularly, to improve the emulsion stability of a silicone oil-based cream-formed cosmetic composition including sodium surfactin together with a polyglyceryl-based emulsifier, , It relates to a stabilized cosmetic composition comprising a polyglyceryl-based emulsifier that provides a light feeling of use.

Cosmetics are largely composed of water, oil-based ingredients, surfactants such as emulsifiers, pigments, effective ingredients, flavoring agents, preservatives, thickeners, and moisturizing agents.

Among them, one of the ingredients that raises the most problems is the emulsifier. Emulsifier helps to harmoniously mix water-based and oil-based raw materials that do not mix when manufacturing cosmetics. ; polyethylene glycol), there are many concerns because 1,4-dioxin, a by-product generated during the manufacturing process, is a first-class carcinogen.

In addition, chemical emulsifiers may cause symptoms such as atopy and allergies, accelerate skin aging due to a decrease in the moisture-retaining function of the stratum corneum, cause cell destruction due to protein denaturation due to skin irritation, and may cause cancer.

Therefore, consumers tend to prefer natural emulsifiers, and companies are developing methods for emulsifying water and oil in terms of technology along with efforts to find eco-friendly emulsifiers or natural emulsifiers.

Recently, many natural surfactants such as polyglyceryl emulsifiers, saponins, and lecithins have been widely used. However, the naturally-derived emulsifier has a problem in that the emulsion stability is greatly reduced when applied to a cream formulation containing silicone oil, particularly cyclomethicone, which is often used in basic cosmetic formulations.

Therefore, there is a need for a method for increasing the emulsion stability of a cosmetic composition of a cream formulation containing a silicone oil while applying a naturally-derived surfactant.

KR 10-2020-0093839 A KR 10-2012-0057404 A

An object of the present invention is to increase the emulsion stability of a silicone oil-based cream-type cosmetic composition by lowering the interfacial tension in the formulation using sodium surfactin together with a polyglyceryl-based emulsifier, which is a naturally derived surfactant. An object of the present invention is to provide a stabilized cosmetic composition comprising an emulsifier.

Another object of the present invention is to provide a stabilized cosmetic composition comprising a polyglyceryl-based emulsifier that is a natural-derived component, which is stable to the human body and imparts a light feeling of use.

Stabilized cosmetic composition comprising a polyglyceryl-based emulsifier of the present invention for achieving the above object includes a polyglyceryl-based emulsifier and sodium surfactin, and the polyglyceryl-based emulsifier is polyglyceryl-4 caprate, poly It is characterized in that it is at least one of glyceryl-10 laurate, polyglyceryl-3 ricinoleate and polyglyceryl-10 myristate.

The polyglyceryl-based emulsifier and sodium surfactin are characterized in that they are included in a weight ratio of 90 to 99.9: 0.01 to 10.

The polyglyceryl emulsifier and sodium surfactin are characterized in that 0.1 to 10% by weight based on the total weight of the cosmetic composition.

The cosmetic composition is characterized in that it is formulated in the form of a cream based on silicone oil.

The silicone oil is characterized in that it is cyclomethicone.

According to the stabilized cosmetic composition containing the polyglyceryl-based emulsifier of the present invention, the emulsion stability of the cream-type cosmetic composition based on silicone oil is increased, and it provides excellent feeling of use, and is stable to the human body as a natural ingredient. There are advantages.

1 is a photograph of stability for 30 days at room temperature of Formulation Example 1 and Comparative Formulation Example 1 according to the present invention.
Figure 2 is a microscopic observation of the emulsified particles of Formulation Example 1 and Comparative Formulation Example 1 according to the present invention.
Figure 3 is a microscopic observation of the emulsified particles of Formulation Example 2 and Comparative Formulation Example 2 according to the present invention.
Figure 4 is a microscopic observation of the emulsified particles of Formulation Example 3 and Comparative Formulation Example 3 according to the present invention.
5 is a photograph showing the centrifugation results of Formulation Examples 1 to 3 and Comparative Formulation Examples 1 to 3 according to the present invention.

Hereinafter, the present invention will be described in detail.

The greatest feature of the present invention is to prevent the stability of emulsification from being lowered when the polyglyceryl emulsifier, which is a naturally derived surfactant, is applied to a cream-type cosmetic composition based on silicone oil.

That is, conventional polyglyceryl emulsifiers are widely used in cosmetic compositions, but when applied to a cream-type cosmetic composition based on silicone oil, there is a problem that the emulsion stability of the cosmetic composition is significantly lowered, so the problem of having to use other chemical emulsifiers As there was, the present invention has the greatest feature in solving this problem by using naturally-derived sodium surfactin.

The stabilized cosmetic composition comprising the polyglyceryl-based emulsifier of the present invention is characterized in that it comprises a polyglyceryl-based emulsifier and sodium surfactin.

First, the polyglyceryl-based emulsifier is a naturally-derived emulsifier commonly used in the prior art as described above. More specifically, in the present invention, as the polyglyceryl-based emulsifier, at least one of polyglyceryl-4 caprate, polyglyceryl-10 laurate, polyglyceryl-3 ricinoleate, and polyglyceryl-10 myristate include that In addition, it is natural that other polyglyceryl-based emulsifiers may be further included in addition to the emulsifiers listed above.

And Sodium Surfactin (Sodium Surfactin) was discovered in Bacillus subtilis (Bacillus subtilis) culture in 1968, a lipopeptide-based material composed of 7 amino acids and fatty acids, produced by fermentation of Bacillus subtilis . In addition, sodium surfectin is dissolved in water and other polar solvents, and since it forms stable micelles by hydrogen bonding between particles, it is used as a nonionic surfactant, as well as for the improvement of inflammatory skin diseases.

The sodium surfactin lowers the interfacial tension in the formulation when used together with the polyglyceryl-based emulsifier, and the emulsification instability, which is a problem that occurs when a naturally-derived emulsifier, particularly a polyglyceryl-based emulsifier, is used in a silicone oil-based cream formulation. is to improve

That is, when the polyglyceryl-based emulsifier and sodium surfactin are applied to a cosmetic composition formulated in a cream type based on silicone oil, emulsion stability can be significantly improved. In addition, since both the polyglyceryl emulsifier and sodium surfactin are ingredients derived from nature, there is no skin irritation, the human body stability is high, and the feeling of use is also improved.

In the present invention, the polyglyceryl-based emulsifier and the sodium surfactin are preferably included in a weight ratio of 90 to 99.9: 0.01 to 10, which is difficult to improve emulsion stability when the sodium surfactin is included less, and even if it is added in excess, no more It does not exhibit the enhanced effect, of course, because the emulsion stability is rather lowered.

In addition, the polyglyceryl-based emulsifier and sodium surfactin are preferably included in an amount of 0.1 to 10% by weight based on the total weight of the cosmetic composition, in consideration of the overall physical properties and efficacy of the cosmetic composition.

The cosmetic composition comprising the polyglyceryl emulsifier and sodium surfactin, as described above, is formulated in the form of a cream based on silicone oil. In this case, the silicone oil can be used regardless of its type, but in consideration of the emulsion stabilization effect, it is most preferably cyclomethicone.

Meanwhile, in the cosmetic composition of the present invention, the remaining components of the composition other than the above-described components may be components of various types of known cosmetic compositions, and detailed description thereof will be omitted.

In addition, in the present invention, there is no particular limitation on the type of the cosmetic, and it is natural that all of them can be applied to a nourishing cream, a moisture cream, a foundation, a makeup base, and the like.

Hereinafter, the present invention will be described in more detail through specific examples.

(Formulation Example 1 and Comparative Formulation Example 1)_Cosmetic composition: nourishing cream

Nutrient creams of Formulation Example 1 and Comparative Formulation Example 1 were prepared at the composition ratios shown in Table 1 below. As a method, after heating phases A and B to 70° C., the phase B was slowly administered to phase A and stirred with a HOMO mixer at 6,000 rpm for 6 minutes. Then, phase C was added thereto and stirred for 2 minutes at 200 rpm with an Agi Mixer to complete the preparation of the cosmetic composition.

Composition (wt%) of Formulation Example 1 and Comparative Formulation Example 1 Raw material name Formulation Example 1 Comparative Formulation Example 1 A Purified water 62.55 63.05 Disodium EDIT 0.02 0.02 1,2-Hexanediol & Caprylic Hydroxamic Acid
&1,3-butylene glycol 0.80 0.80 tromethamine 0.36 0.36 1,3-butylene glycol 5.00 5.00 Sodium Surfactin 0.5 - honey extract 0.05 0.05 Shiho Root Extract 0.01 0.01 Lactobacillus Ferment Lysate 0.01 0.01 mannitol 0.01 0.01 adenosine 0.04 0.04 Niacinamide 2.00 2.00 B Cetyl-2ethylhexanoate 3.00 3.00 dimethicone 2.75 2.75 Meadow Foam Seed Oil 2.00 2.00 cetearyl alcohol 2.00 2.00 Hydrogenated Coconut Oil 3.00 3.00 cyclopentasiloxane 10.00 10.00 Glyceryl Monostearate 1.00 1.00 Polyglyceryl-3 Ricinoleate 0.50 0.50 Polyglyceryl-4 Caprate 4.00 4.00 C Carbomer 0.4 0.4

(Formulation Example 2 and Comparative Formulation Example 2)_Cosmetic composition: nourishing cream

Nutrient creams of Formulation Example 2 and Comparative Formulation Example 2 were prepared at the composition ratios shown in Table 2 below. As a method, after heating phases A and B to 70° C., the phase B was slowly administered to phase A and stirred with a HOMO mixer at 6,000 rpm for 6 minutes. Then, phase C was added thereto and stirred for 2 minutes at 200 rpm with an Agi Mixer to complete the preparation of the cosmetic composition.

Composition (wt%) of Formulation Example 2 and Comparative Formulation Example 2 Raw material name Formulation Example 2 Comparative Formulation Example 2 A Purified water 63.16 63.76 Disodium EDIT 0.02 0.02 1,2-Hexanediol & Caprylic Hydroxamic Acid
&1,3-butylene glycol 0.80 0.80 tromethamine 0.36 0.36 1,3-butylene glycol 5.00 5.00 Sodium Surfactin 0.5 - Leaflet Maekmundong Root Extract 0.05 0.05 Ginseng Extract 0.50 0.50 green tea extract 0.50 0.50 mannitol 0.01 0.01 B Coco-Caprylate/Caprate 3.00 3.00 dimethicone 3.00 3.00 cetearyl alcohol 2.00 2.00 Hydrogenated Coconut Oil 5.00 5.00 cyclopentasiloxane 10.00 10.00 Glyceryl Monostearate 1.00 1.00 Polyglyceryl-3 Ricinoleate 0.50 0.50 Polyglyceryl-10 Laurate 4.00 4.00 C Carbomer 0.5 0.5

(Formulation Example 3 and Comparative Formulation Example 3)_Cosmetic composition: moisture cream

Moisture creams of Formulation Example 3 and Comparative Formulation Example 3 were prepared at the composition ratios shown in Table 3 below. As a method, after heating phases A and B to 70° C., the phase B was slowly administered to phase A and stirred with a HOMO mixer at 6,000 rpm for 6 minutes. Then, phase C was added thereto and stirred for 2 minutes at 200 rpm with an Agi Mixer to complete the preparation of the cosmetic composition.

Composition (wt%) of Formulation Example 3 and Comparative Formulation Example 3 Raw material name Formulation Example 3 Comparative Formulation Example 3 A Purified water 60.25 60.85 Disodium EDIT 0.02 0.02 1,2-Hexanediol & Caprylic Hydroxamic Acid
&1,3-butylene glycol 0.80 0.80 tromethamine 0.36 0.36 glycerin 5.00 5.00 Sodium Surfactin 0.5 - Dried Angelica Root Extract 0.05 0.05 White Woody Mushroom Extract 0.50 0.50 Lactobacillus Ferment Lysate 0.50 0.50 Sodium Hyaluronate 3.00 3.00 B C12-15 Alkylbenzoate 3.00 3.00 dimethicone 0.50 0.50 cetearyl alcohol 2.00 2.00 Hydrogenated Coconut Oil 4.00 4.00 Cyclopentasiloxane & Cyclohexasiloxane 4.50 4.50 cyclopentasiloxane 9.00 9.00 Glyceryl Monostearate 1.00 1.00 Polyglyceryl-3 Ricinoleate 0.50 0.50 Polyglyceryl-10 Myristate 4.00 4.00 C Carbomer 0.4 0.4

(Test Example 1)_Temperature stability

The temperature stability of Formulation Example 1 and Comparative Formulation Example 1 was tested as follows. After 30 days of storage at room temperature (RT: Room Temperature), 4°C, CT (Cycling Test: -4 to +40°C, once a day), and 45°C, the stability after 30 days was visually measured. The experimental results are shown in Table 4 and FIG. 1 below.

Test Example 1 Results division 7 days 15th 30 days Formulation Example 1 Comparative Formulation Example 1 Formulation Example 1 Comparative Formulation Example 1 Formulation Example 1 Comparative Formulation Example 1 RT ○ △ ○ △ ○ × 4℃ ○ ○ ○ × ○ × CT ○ × ○ × ○ × 45℃ ○ × ○ × ○ ×

○: not separated, △: slightly separated, X: largely separated

As can be seen in Table 4 and FIG. 1, it can be confirmed that Formulation Example 1 is more stable than Comparative Formulation Example 1 without being separated for more than 30 days at room temperature, high temperature of 45°C, and CT (Cycling Test).

(Test Example 2) _ Microscopic observation of the distribution of emulsified particles

The distribution of emulsified particles of Formulation Examples 1, 2, and 3 and Comparative Formulation Examples 1, 2, and 3 was observed with a microscope (OLYMPUS CX41). And the results are shown in FIGS. 2 to 4 .

2 is a microscope observation photograph of Formulation Example 1 and Comparative Formulation Example 1, FIG. 3 is a microscope observation photograph of Formulation Example 2 and Comparative Formulation Example 2, and FIG. 3 is a microscope observation photograph of Formulation Example 3 and Comparative Formulation Example 3.

2 to 4, in the case of Formulation Examples 1, 2, and 3 according to the present invention, the distribution of the emulsified particles of Comparative Formulation Examples 1, 2, and 3 is more even, the emulsified particles are small, and the agglomeration part You can see this little thing.

As a result, when the polyglyceryl-based emulsifier and sodium surfactin were applied to the formulation of a cosmetic composition based on silicone oil, it was confirmed that the emulsion stability was increased.

(Test Example 3)_Emulsion stability

In order to check the emulsion stability of Formulation Examples 1, 2, 3 and Comparative Formulation Examples 1, 2, 3, 3 g each of Formulation Examples 1, 2, 3 and Comparative Formulation Examples 1, 2 and 3 were added to a centrifuge (NF200) And, it was operated at 5000 rpm for 30 minutes to check the degree of separation. And the result is shown in FIG.

As can be seen in FIG. 5, it was confirmed that the separation did not occur in Formulation Examples 1, 2, and 3, and in Comparative Formulation Examples 1, 2, and 3, separation occurred.

Therefore, when the polyglyceryl-based emulsifier and sodium surfactin were applied to the formulation of a cosmetic composition based on silicone oil, it was confirmed that the emulsion stability was increased.

(Test Example 4)_sensory test: feeling of use

In order to confirm the difference in feeling of use between Formulation Examples 1, 2, and 3 and Comparative Formulation Examples 1, 2, and 3, a sensory test was performed. In the sensory test, 20 subjects participated, and after using the same amount of each formulation example on the face, applicability, absorption, adhesion, and stickiness were evaluated. For the evaluation, 5 points for very good and 1 point for very bad in the case of spreadability, absorption power, and adhesion, 5 points for very sticky and 1 point for not sticky at all.

Test Example 4 Results division spreadability absorptivity adhesion stickiness Formulation Example 1 5 4 4 One Comparative Formulation Example 1 5 5 4 One Formulation Example 2 4 5 3 One Comparative Formulation Example 2 4 4 4 One Formulation Example 3 5 3 5 One Comparative Formulation Example 3 5 3 4 One

As can be seen in Table 5, the formulation examples according to the present invention were all excellent in the feeling of use of each comparative formulation example.

Therefore, when sodium surfactin was applied to the formulation, it was confirmed that not only did it increase the emulsion stability, but also it was excellent without much change in terms of use reduction.

(Test Example 5)_Safety: skin irritation evaluation

In order to examine the skin irritation related to the safety of the composition according to the present invention, a human patch test was performed. Formulation Example 1, Comparative Formulation Example 1, and propylene glycol and purified water as a control were applied to the upper arm of 30 women with healthy skin in a predetermined amount (about 40 μg), respectively, for 24 hours. Then, after removing it and measuring skin irritation, the skin reaction was again investigated after 24 hours and 48 hours. The criteria for determining skin irritation and the formula for calculating the degree of irritation are as follows, and the results are shown in Table 6 below. indicated.

Judgment Criteria - : No erythema or unusual phenomenon

+- : Slightly redder than the surrounding area

+ : Significantly redder than the surrounding area

++ : Redness and swelling more severe than the surrounding area

(Stimulation degree calculation formula)

Test Example 5 Results division number of subjects Investigation period Judgment result stimulus degree ++ + +- - Formulation Example 1 30 people immediately after removal 0 people 0 people 1 person 29 people 3.33 30 people after 24 hours 0 people 0 people 2 people 28 people 6.67 30 people after 48 hours 0 people 0 people 2 people 28 people 6.67 Comparative Formulation Example 1 30 people immediately after removal 0 people 0 people 1 person 29 people 3.33 30 people after 24 hours 0 people 1 person 2 people 28 people 6.67 30 people after 48 hours 0 people 0 people 2 people 28 people 6.67 propylene glycol 30 people immediately after removal 0 people 2 people 1 person 27 people 15.63 30 people after 24 hours 0 people 2 people 2 people 26 people 18.75 30 people after 48 hours 0 people 2 people 2 people 26 people 18.75 Purified water 30 people immediately after removal 0 people 0 people 0 people 30 people 0.00 30 people after 24 hours 0 people 0 people 0 people 30 people 0.00 30 people after 48 hours 0 people 0 people 0 people 30 people 0.00

As shown in Table 6, Formulation Example 1 of the present invention was found to have little skin irritation.

The above has been described in detail specific parts of the present invention. For those of ordinary skill in the art, the specific description of the present invention is merely a preferred embodiment, and the scope of the present invention is not limited thereby.

Claims (5)

delete delete delete delete A cosmetic composition formulated in a cream form based on silicone oil,
Including a polyglyceryl-based emulsifier and sodium surfactin,
The silicone oil is cyclopentasiloxane,
The polyglyceryl-based emulsifier is polyglyceryl-3 ricinoleate and polyglyceryl-4 caprate,
Based on 100% by weight of the cosmetic composition,
Polyglyceryl-based emulsifier comprising 10% by weight of the cyclopentasiloxane, 0.5% by weight of polyglyceryl-3 ricinoleate, 4% by weight of polyglyceryl-4 caprate, and 0.5% by weight of sodium surfactin A stabilized cosmetic composition comprising.

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