Cosmetic composition comprising substances of natural origin

Abstract

The present invention relates to a cosmetic composition comprising a polyglycerol-based emulsifier, an oil-phase thickener, a water-phase thickener, and a pigment, the cosmetic composition of the present invention being excellent in use feeling and color persistence without phenomena such as dryness, oil, darkness, and the like even if the cosmetic composition comprises a natural source material, and having high pigment dispersibility and emulsion stability.

Description

Technical Field

[0001] The present invention relates to a cosmetic composition, and more particularly to a foundation cosmetic composition containing natural origin materials. Background Art

[0002] Existing water-in-oil foundation cosmetic compositions use PEG or silicone emulsifiers to achieve excellent emulsification stability and outstanding makeup effects. In addition, not only emulsifiers, but also thickeners, oils, pigments, etc. use synthetic substances represented by PEG and silicone. These synthetic emulsifiers, synthetic thickeners, synthetic oils, synthetic pigments, etc. can be made into stable emulsions, which play a great role in the feel of foundation and color sustainability.

[0003] However, in recent years, as the concern for the environment continues to increase, the demand for natural cosmetics that do not use synthetic substances has increased dramatically. Therefore, the use of synthetic substances is restricted, and cosmetic compositions containing substances of natural origin are actively developed. However, if PEG-based and silicone-based substances, which are representative synthetic substances, are excluded, there are many limitations in achieving stability, feel in use, and color of the foundation.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: KR10-2018-0082641A Summary of the invention

[0007] Problems to be solved by the invention

[0008] In order to solve the problems of the prior art as described above, an object of the present invention is to provide a foundation cosmetic composition comprising a natural source material.

[0009] Technical solutions to the problem

[0010] One aspect of the present invention provides a cosmetic composition comprising a polyglycerol-based emulsifier, an oil phase thickener, a water phase thickener, and a pigment.

[0011] The polyglycerol emulsifier may include one or more selected from the group consisting of polyglycerol pentaisostearate, polyglycerol polyricinoleate, polyglycerol-5 laurate, polyglycerol-2 caprylate, and polyglycerol-6 pentaoleate. In addition, the polyglycerol emulsifier may contain 0.1 to 20 weight % relative to the total weight of the composition.

[0012] The oil phase thickener may include one or more selected from the group consisting of hectorite and bentonite. In addition, the oil phase thickener may contain 0.1 to 5 weight % relative to the total weight of the composition.

[0013] The aqueous phase thickener may include one or more selected from the group consisting of hectorite, bentonite, xanthan gum, magnesium silicate, magnesium aluminum silicate, lithium magnesium silicate and sodium magnesium silicate. In addition, the aqueous phase thickener may contain 0.1 to 5 weight % relative to the total weight of the composition.

[0014] The pigment may include one or more selected from the group consisting of titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide and black iron oxide. In addition, the pigment may contain 0.1 to 50% by weight relative to the total weight of the composition. In addition, the pigment may be a pigment coated with one or more selected from the group consisting of lauroyl lysine, lysine, sodium lauroyl glutamate, glutamate and disodium stearoyl glutamate.

[0015] The cosmetic composition may have a viscosity of 3,000 to 30,000 cps. In addition, the cosmetic composition may have a viscosity of 10 to 30 dyne / cm 2 Hardness.

[0016] Effects of the Invention

[0017] According to one embodiment of the present invention, a cosmetic composition that is stable even without using a silicone-based or PEG-based emulsifier can be provided.

[0018] In addition, according to one embodiment of the present invention, a foundation cosmetic composition having excellent feeling during use and color durability can be provided. DETAILED DESCRIPTION

[0019] Hereinafter, the present invention will be described in more detail with reference to Examples. However, these Examples are for illustrative purposes only and should not be construed as limiting the scope of the present invention.

[0020] According to one aspect of the present invention, the present invention provides a cosmetic composition comprising a polyglycerol-based emulsifier, an oil phase thickener, a water phase thickener and a pigment.

[0021] The cosmetic composition of the present invention has a viscosity of 3,000 to 30,000 cps. In the present invention, viscosity refers to the viscosity measured by a Brookfield viscometer at 64 spindles, 12 rpm, 1 minute, and 25° C. When the viscosity of the composition is less than 3,000 cps, there is a problem of low viscosity stability, and when the viscosity of the composition exceeds 30,000 cps, there is a problem that the composition is difficult to discharge from a container.

[0022] The cosmetic composition of the present invention has a 10 to 30 dyne / cm 2In the present invention, hardness refers to the hardness measured by a CR-3000EX-L hardness tester (SUN SCIENTIFIC, Japan) at a speed of 2 cm / min with a 9-spindle. When the hardness of the composition is less than 10 dyne / cm 2 In the case of 2 In the case of , there is a problem that the spreadability of the composition decreases.

[0023] In the present invention, the cosmetic composition includes both an oil phase thickener and a water phase thickener, thereby providing a cosmetic composition having excellent stability within the viscosity range.

[0024] The cosmetic composition may further include oil, purified water and other additives.

[0025] The cosmetic composition of the present invention may not contain a silicone-based or PEG-based emulsifier, and preferably, may not contain a synthetic emulsifier.

[0026] The term "does not include" means "does not substantially include", and herein, "substantially" means that it may include 3% by weight or less of the total weight of the composition. For example, the content of "does not include" may be 3% by weight or less, 2.5% by weight or less, 2% by weight or less, 1.5% by weight or less, 1% by weight or less, 0.7% by weight or less, 0.5% by weight or less, 0.3% by weight or less, 0.1% by weight or less, 0.06% by weight or less, 0.03% by weight or less, or 0.01% by weight or less.

[0027] A. Polyglycerol emulsifier

[0028] The composition of the present invention contains a polyglycerol emulsifier. In the present invention, the polyglycerol emulsifier affects the pigment dispersibility and emulsification stability of the cosmetic composition.

[0029] The polyglycerol emulsifier may be one or more selected from the group consisting of polyglyceryl pentaisostearate, polyglyceryl polyricinoleate, polyglyceryl-5 laurate, polyglyceryl-2 caprylate and polyglyceryl-6 pentaoleate. Most preferably, polyglyceryl pentaisostearate and polyglyceryl polyricinoleate are used.

[0030] The polyglycerol emulsifier may contain 0.1 to 20% by weight relative to the total weight of the composition. In the present invention, the polyglycerol emulsifier may contain 0.1% by weight or more, 1% by weight or more, 2% by weight or more, 5% by weight or more, or 10% by weight or less, 20% by weight or less, 17% by weight or less, 15% by weight or less, 12% by weight or less, or 10% by weight or less. When the polyglycerol emulsifier is less than 0.1% by weight, there are problems in terms of pigment dispersibility and emulsification stability, and when the polyglycerol emulsifier exceeds 20% by weight, there are problems in terms of poor spreadability and feeling of use.

[0031] B. Oil phase thickener

[0032] The composition of the present invention comprises an oil phase thickener. As long as the oil phase thickener is a natural thickener that can be dispersed in the oil phase, the oil phase thickener can be any oil phase thickener known in the art, for example, it can be one or more selected from the group consisting of hectorite and bentonite.

[0033] The oil phase thickener may contain 0.1 to 5 weight % relative to the total weight of the composition. In the present invention, the oil phase thickener may contain 0.1 weight % or more, 1 weight % or more, 1.5 weight % or more, 2 weight % or more, or 2.5 weight % or less, and may contain 5 weight % or less, 4.5 weight % or less, 4 weight % or less, 3.5 weight % or less, or 3 weight % or less. When the oil phase thickener is less than 0.1 weight %, the viscosity of the composition is low and there are problems in terms of pigment dispersibility and emulsification stability. When the oil phase thickener exceeds 5 weight %, there is a problem of excessively high viscosity of the composition.

[0034] C. Water phase thickener

[0035] The composition of the present invention comprises an aqueous thickener. As long as it is a natural thickener that can be dispersed in the aqueous phase, the aqueous thickener can use any aqueous thickener known in the art, for example, it can be one or more selected from the group consisting of hectorite, bentonite, xanthan gum, magnesium silicate, aluminum magnesium silicate, lithium magnesium silicate and sodium magnesium silicate.

[0036] The aqueous thickener may contain 0.1 to 5 weight % relative to the total weight of the composition. In the present invention, the aqueous thickener may contain 0.1 weight % or more, 1 weight % or more, 1.5 weight % or more, 2 weight % or more, or 2.5 weight % or less, and may contain 5 weight % or less, 4.5 weight % or less, 4 weight % or less, 3.5 weight % or less, or 3 weight % or less. When the aqueous thickener is less than 0.1 weight %, there is a problem that the viscosity of the composition is low and the pigment dispersibility and emulsification stability are not good. When the aqueous thickener exceeds 5 weight %, there is a problem that the viscosity of the composition is too high.

[0037] D. Pigment

[0038] The composition of the present invention includes a pigment. The pigment may be any pigment known in the art, for example, one or more selected from the group consisting of titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, and black iron oxide.

[0039] In the present invention, the pigment may be a coated pigment. The coating substrate for coating the pigment may be one or more selected from the group consisting of lauroyl lysine, lysine, sodium lauroyl glutamate, glutamate and disodium stearoyl glutamate, and most preferably, lauroyl lysine is used.

[0040] The pigment may include 0.1 to 50% by weight relative to the total weight of the composition. In the present invention, the pigment may include more than 0.1% by weight, more than 5% by weight, more than 10% by weight, more than 15% by weight, or more than 20% by weight, and may include less than 50% by weight, less than 45% by weight, less than 40% by weight, less than 35% by weight, or less than 30% by weight. When the pigment is less than 0.1% by weight, the makeup effect decreases, and when the pigment exceeds 50% by weight, the dispersibility and spreadability are poor.

[0041] E. Oil

[0042] The composition of the present invention may contain oil. The oil may be any oil known in the art, preferably one or more of the group consisting of hydrocarbon oil, ester oil, silicone oil, polyester, fatty acid and / or fatty alcohol, animal oil, vegetable oil, mineral oil and mixtures thereof.

[0043] In the present invention, the oil may contain 0.1 to 50 weight % relative to the total weight of the composition. As a preferred specific example, it may contain more than 0.1 weight %, more than 1 weight %, more than 5 weight % or more than 10 weight %, and may contain less than 50 weight %, less than 40 weight % or less than 30 weight %.

[0044] F.Pure water

[0045] The composition of the present invention may contain purified water. In the present invention, the content of the purified water may be a residual amount satisfying 100% of the composition, for example, it may contain 0.1 to 50% by weight based on the total amount of the composition, as another example, it may contain 1 to 45% by weight, 10 to 40% by weight, or 20 to 35% by weight.

[0046] G. Other additives

[0047] On the other hand, within the scope of not hindering the purpose and effect of the present invention, the composition of the present invention may also contain additives commonly used in the field to which the present invention belongs, depending on the purpose. Preferably, it may contain at least one selected from the group consisting of dispersants, polyols, preservatives, preservatives, humectants, antioxidants and fillers, but is not limited thereto.

[0048] In the present invention, the aforementioned other additives may be contained in an amount of 0.1 to 20% by weight.

[0049] In order to explain the present invention more specifically, preferred embodiments are described below. However, the purpose of the following embodiments is only to exemplify the present invention and not to limit the present invention.

[0050] <Production Example 1 of Cosmetic Composition>

[0051] Next, according to the composition (weight %) in Table 1, a cosmetic composition was prepared.

[0052] [Table 1]

[0053]

[0054] Specifically, after measuring the composition according to Table 1, the emulsifier, the oil phase thickener and the polyhydroxystearic acid were heated and dissolved at 70°C, and the pigment was added, and then stirred at 3500 rpm for 10 minutes using a homogenizer to produce an oil phase. Pure water, polyols, water phase thickeners and other additives were stirred at 3500 rpm for 10 minutes using a homogenizer to produce a water phase, and after the oil phase and the water phase were mixed, the cosmetic composition was produced by stirring at 6000 rpm for 10 minutes using a homogenizer.

[0055] Viscosity measurement

[0056] The viscosity of the compositions of Examples and Comparative Examples was measured.

[0057] The viscosity of each composition prepared in Example 1 and Comparative Examples 1 to 7 was measured using a Brookfield viscometer at 64 rotor, 12 rpm, 1 minute, and 25° C. The results are shown in Table 2 below.

[0058] [Table 2]

[0059]

[0060]

[0061] As shown in Table 2, it can be confirmed that Example 1 has a viscosity of 10,000 cps, which is a viscosity preferred for foundation cosmetics. In contrast, Comparative Example 1, which does not contain an aqueous phase thickener and an oil phase thickener, cannot measure the viscosity. Comparative Example 2, which contains only an aqueous phase thickener, Comparative Example 3, which has a low content of an oil phase thickener, Comparative Example 5, which contains only an oil phase thickener, and Comparative Example 6, which has a low content of an aqueous phase thickener, show low viscosities. On the other hand, Comparative Example 4, which has a high content of an oil phase thickener, and Comparative Example 7, which has a high content of an aqueous phase thickener, are not preferred because of their excessively high viscosities.

[0062] From the viscosity measurement results, the fact that the cosmetic composition of the present invention provides a foundation cosmetic composition having a preferred viscosity can be understood.

[0063] Dosage form stability test

[0064] The compositions of the examples and comparative examples were tested for dosage form stability.

[0065] The formulation stability test was conducted by storing each composition prepared in Example 1 and Comparative Examples 1 to 7 in a constant temperature and humidity chamber at 25° C. for 12 weeks and visually observing the changes in the formulation. The results of observing the formulation of the composition after 12 weeks are shown in Table 3 below.

[0066] [Table 3]

[0067] project Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Dosage form performance Stablize Phase separation Phase separation Phase separation Stablize Phase separation Phase separation Stablize

[0068] As shown in Table 3, in Example 1, the dosage form was stable over 12 weeks. In contrast, phase separation was observed in Comparative Example 1, which did not contain an aqueous phase thickener and an oil phase thickener. In addition, phase separation was also observed in Comparative Examples 2 and 5, which contained only an aqueous phase thickener or an oil phase thickener, and Comparative Examples 3 and 6, in which the content of the oil phase thickener or the aqueous phase thickener was low.

[0069] From the dosage form stability test, it was confirmed that the cosmetic composition of the present invention was stable in dosage form without phase separation during 12 weeks.

[0070] Usage test

[0071] The compositions of Examples and Comparative Examples were subjected to a feel-in-use test.

[0072] The feeling of use test was conducted on 20 women aged 20 to 40 years old. After using each composition prepared in Example 1 and Comparative Examples 4 and 7, the feeling of use in four items, namely, dryness, oiliness, dullness, and color lasting power, was evaluated. For each item, a score of 1 to 10 was given, and the average of the sum of the scores of the 20 people was calculated. The results are shown in Table 4 below. For the items of dryness, oiliness, and dullness, higher scores were given when these phenomena did not occur, and the color lasting power was given a higher score as the duration was longer.

[0073] -Evaluation criteria

[0074] 8 points or more: Excellent (◎), 6-8 points: Good (○), 3-6 points: Average (△), less than 3 points: Poor (×)

[0075] [Table 4]

[0076] project Example 1 Comparative Example 4 Comparative Example 7 Dryness ◎ × × Oily ◎ △ △ Dark ◎ × × Color sustainability ◎ × ×

[0077] As shown in Table 4, Example 1 was evaluated as excellent in all items of feeling during use. In contrast, Comparative Examples 4 and 7 were evaluated as low in all items.

[0078] From the feeling-in-use test, it can be seen that the cosmetic composition of the present invention provides an excellent feeling in use without being dry or oily, without dulling, and with excellent color durability.

[0079] <Production Example 2 of Cosmetic Composition>

[0080] Next, a cosmetic composition was prepared according to the composition (weight %) in Table 5. The specific preparation method is as shown in Example 1.

[0081] [Table 5]

[0082]

[0083] Viscosity measurement

[0084] The viscosity of the compositions of Examples and Comparative Examples was measured.

[0085] The viscosity of each composition prepared in Examples 2 and 3 and Comparative Examples 8 to 10 was measured using a Brookfield viscometer at 64 rotor, 12 rpm, 1 minute, and 25° C. The results are shown in Table 6 below.

[0086] [Table 6]

[0087] project Example 2 Example 3 Comparative Example 8 Comparative Example 9 Comparative Example 10 Viscosity(cps) 10,000 10,000 45,000 45,000 -

[0088] As shown in Table 6, it was confirmed that Examples 2 and 3 had a viscosity of 10,000 cps, which was a viscosity preferred for foundation cosmetics. On the contrary, it was confirmed that Comparative Examples 8 and 9, which had a high content of polyglycerol emulsifier, had high viscosity. On the other hand, the viscosity of Comparative Example 10 containing sorbitan isostearate could not be measured.

[0089] From the viscosity measurement results, the fact that the cosmetic composition of the present invention provides a foundation cosmetic composition having a preferred viscosity can be understood.

[0090] Dosage form stability test

[0091] The compositions of the examples and comparative examples were tested for dosage form stability.

[0092] The formulation stability test was conducted by storing each composition prepared in Examples 2, 3 and Comparative Examples 8 to 10 in a constant temperature and humidity chamber at 25°C for 12 weeks and visually observing the changes in the formulation. The results of observing the formulation of the composition after 12 weeks are shown in Table 7 below.

[0093] [Table 7]

[0094] project Example 2 Example 3 Comparative Example 8 Comparative Example 9 Comparative Example 10 Dosage form performance Stablize Stablize Stablize Stablize Phase separation

[0095] As shown in Table 7, Examples 2 and 3 and Comparative Examples 8 and 9 containing a polyglycerol-based emulsifier had stable dosage forms over a period of 12 weeks, whereas phase separation was observed in Comparative Example 10 containing sorbitan isostearate.

[0096] From the dosage form stability test, it was confirmed that the cosmetic composition of the present invention was stable in dosage form without phase separation during 12 weeks.

[0097] Usage test

[0098] The compositions of Examples and Comparative Examples were subjected to a feel-in-use test.

[0099] The feeling of use test was conducted on 20 women aged 20 to 40. After using each composition prepared in Examples 2 and 3 and Comparative Examples 8 and 9, the feeling of use in four items, namely, dryness, oiliness, dullness, and color lasting power, was evaluated. For each item, a score of 1 to 10 was given, and the average of the sum of the scores of the 20 people was calculated. The results are shown in Table 8 below. For the items of dryness, oiliness, and dullness, higher scores were given when these phenomena did not occur, and the color lasting power was given a higher score as the duration was longer.

[0100] -Evaluation criteria

[0101] 8 points or more: Excellent (◎), 6-8 points: Good (○), 3-6 points: Average (△), less than 3 points: Poor (×)

[0102] [Table 8]

[0103] project Example 2 Example 3 Comparative Example 8 Comparative Example 9 Dryness ◎ ◎ × × Oily ◎ ◎ △ △ Dark ◎ ◎ × × Color sustainability ◎ ◎ × ×

[0104] As shown in Table 8, Examples 2 and 3 were evaluated as excellent in all items of feeling during use. In contrast, Comparative Examples 8 and 9 were evaluated as low in all items.

[0105] From the feeling-in-use test, it can be seen that the cosmetic composition of the present invention provides an excellent feeling in use without being dry or oily, without dulling, and with excellent color durability.

Claims

1. A cosmetic composition, wherein: The invention comprises a polyglycerol emulsifier, an oil phase thickener, a water phase thickener and a pigment.

2. The cosmetic composition according to claim 1, wherein The polyglycerol emulsifier includes at least one selected from the group consisting of polyglyceryl pentaisostearate, polyglyceryl polyricinoleate, polyglyceryl-5 laurate, polyglyceryl-2 caprylate, and polyglyceryl-6 pentaoleate.

3. The cosmetic composition according to claim 1, wherein The polyglycerol emulsifier comprises 0.1 to 20 wt % relative to the total weight of the composition.

4. The cosmetic composition according to claim 1, wherein The oil phase thickener includes at least one selected from the group consisting of hectorite and bentonite.

5. The cosmetic composition according to claim 1, wherein The oil phase thickener comprises 0.1 to 5 weight % relative to the total weight of the composition.

6. The cosmetic composition according to claim 1, wherein The water phase thickener includes at least one selected from the group consisting of hectorite, bentonite, xanthan gum, magnesium silicate, magnesium aluminum silicate, lithium magnesium silicate and sodium magnesium silicate.

7. The cosmetic composition according to claim 1, wherein The water phase thickener comprises 0.1 to 5 weight % relative to the total weight of the composition.

8. The cosmetic composition according to claim 1, wherein The pigment includes at least one selected from the group consisting of titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, and black iron oxide.

9. The cosmetic composition according to claim 1, wherein The pigment comprises 0.1 to 50 wt % relative to the total weight of the composition.

10. The cosmetic composition according to claim 1, wherein The pigment is coated with one or more selected from the group consisting of lauroyl lysine, lysine, sodium lauroyl glutamate, glutamate, and disodium stearoyl glutamate.

11. The cosmetic composition according to claim 1, wherein Has a viscosity of 3,000 to 30,000 cps.

12. The cosmetic composition according to claim 1, wherein With 10 to 30 dyne / cm 2 Hardness.

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