KR102571830B1 - Cosmetic composition - Google Patents

Abstract

The present invention relates to a cosmetic composition comprising glyceryl caprylate, glyceryl undecylinate and sorbitan caprylate.

Description

Cosmetic composition {Cosmetic composition}

The present invention relates to a cosmetic composition comprising glyceryl caprylate, glyceryl undecylinate and sorbitan caprylate.

Various types of ingredients are formulated in the cosmetic composition to improve the cosmetic effect of the skin and the feeling of use that is sensed during use. Although these ingredients exhibit good properties as cosmetics, they also act as negative factors in maintaining stability and safety within a limited period of use. Typically, components such as a large amount of water, sugar, and protein act to help the growth of microorganisms such as molds, bacteria, and fungi, resulting in contamination of cosmetics, resulting in deterioration in quality such as odor, discoloration, and phase separation. For this reason, since it is difficult to avoid contamination by microorganisms or the like during manufacture and use of the cosmetic composition, a preservative is included to improve the preservative power of the product.

Conventional cosmetic compositions used synthetic preservatives such as parabens, imidazolidinyl urea, and phenoxyethanol. These conventional synthetic preservatives have excellent preservative power and are easy to use in cosmetics, but cause skin diseases and endocrine disruption. As the research results are announced, there is an urgent need to develop cosmetics that do not use these synthetic preservative ingredients. In addition, environmental pollution problems may be caused by components with low biodegradability of synthetic preservatives.

Due to the above problems, consumers' preference for natural preservatives is increasing, and natural preservative components have been developed in response to such consumer demands, but there is a limit to satisfying the preservative power against various microorganisms due to a narrow antibacterial spectrum. In addition, due to the high price and the deterioration of the quality of the natural preservative itself, the emulsification stability of the cosmetic was impaired. In order to physically improve stability, excessive use of surfactants and synthetic thickeners was required, resulting in a vicious cycle.

On the other hand, in order to compensate for the problem of deterioration in stability, attempts have been made to use synthetic thickeners such as carbomers and acrylate-based polymers, but they cannot be applied to cosmetic compositions intended to be composed of natural ingredients, and consumers who prefer natural ingredients The downside is that it doesn't suit everyone's tastes. In addition, when using a synthetic thickener, a warming process may be added, resulting in inefficiency in terms of time and energy.

Accordingly, there is an urgent need to develop cosmetics that do not cause skin irritation while exhibiting excellent preservative power using natural preservatives.

The present invention provides a cosmetic composition containing a preservative of natural ingredients, which has excellent stability and preservative power and does not cause skin irritation.

The cosmetic composition of the present invention includes glyceryl caprylate, glyceryl undecylinate and sorbitan caprylate.

The present invention provides a cosmetic composition comprising a preservative composition of natural ingredients including glyceryl caprylate, glyceryl undecylinate and sorbitan caprylate. The cosmetic composition according to the present invention has excellent preservative power without causing skin irritation by using a natural preservative. In addition, the cosmetic composition according to the present invention exhibits excellent stability and does not require the addition of unnecessary raw materials.

Hereinafter, the present invention will be described. However, it is not limited only by the following contents, and each component may be variously modified or selectively mixed as needed. Therefore, it should be understood to include all modifications, equivalents or substitutes included in the spirit and scope of the present invention.

The cosmetic composition of the present invention includes a preservative composition containing glyceryl caprylate, glyceryl undecylinate and sorbitan caprylate. In addition, the cosmetic composition of the present invention may further include emollients, skin conditioning agents, emulsifiers, polyols, thickeners, and the like.

Glyceryl caprylate serves as a preservative and auxiliary emulsifier. Based on the total weight of the cosmetic composition, 0.5 to 2.5% by weight of glyceryl caprylate, for example, 1 to 1.5% by weight may be included. If the content of glyceryl caprylate is less than the above range, the preservative power may not be sufficient, and if it exceeds the above range, stability may be inferior and the particles may become non-uniform.

Glyceryl undecylinate serves as a preservative and auxiliary emulsifier. Based on the total weight of the cosmetic composition, 0.05 to 1% by weight of glyceryl undecilinate, for example, 0.1 to 0.5% by weight may be included. When the content of glyceryl undecylinate is less than the above range, preservative power may not be sufficient, and when it exceeds the above range, stability may be inferior and the particles may become non-uniform.

Glyceryl caprylate and glyceryl undecylinate may be mixed in a weight ratio of 1 to 15:1, for example, 2.3 to 11.5:1. If the content of glyceryl caprylate relative to glyceryl undecylinate is less than the above range, the preservative power may not be sufficient, and if it exceeds the above range, stability may be poor and the particles may become non-uniform.

As a preservative, sorbitan caprylate is used together with the aforementioned glyceryl caprylate and glyceryl undecylinate to further increase the preservative power of the preservative composition. Based on the total weight of the cosmetic composition, 0.05 to 1% by weight of sorbitan caprylate, for example, 0.1 to 0.5% by weight may be included. If the content of sorbitan caprylate is less than the above range, the preservative power may not be sufficient, and if it exceeds the above range, stability may be inferior and the particles may become non-uniform.

The ratio of the total content of glyceryl caprylate and glyceryl undecylinate to the content of sorbitan caprylate is 2.2 to 20: 1, for example 3 to 10: 1, in other examples 4 to 5: 1 It can be a weight ratio. If the content of the remaining preservatives relative to sorbitan caprylate is less than the above range, the preservative power may not be sufficient, and if it exceeds the above range, stability may be poor and the particles may become non-uniform.

The cosmetic composition of the present invention may further contain oil. Based on the total weight of the cosmetic composition, the oil may be included in an amount of 0.1 to 20% by weight, for example, 5 to 15% by weight.

The cosmetic composition of the present invention may further include an emulsifier. Based on the total weight of the cosmetic composition, the emulsifier may be included in an amount of 0.1 to 15% by weight, for example, 3 to 10% by weight.

The cosmetic composition of the present invention may further include a polyol. Based on the total weight of the cosmetic composition, the polyol may be included in an amount of 0.1 to 20% by weight, for example, 5 to 15% by weight.

The cosmetic composition of the present invention may further include a thickening agent. Based on the total weight of the cosmetic composition, the thickener may be included in an amount of 0.1 to 1.0% by weight, for example, 0.25 to 0.5% by weight.

The cosmetic composition of the present invention may further include additives commonly used in cosmetic compositions in addition to the above components. For example, the cosmetic composition may include a neutralizing agent, a chelating agent, a thickening agent, a gelling agent, a softening agent, a suspending agent, a stabilizer, a foaming agent, a fragrance, a filler, a sequestering agent, a wetting agent, a dye, a pigment, a fragrance and a surfactant It may further include one or more selected from the group consisting of, but is not limited thereto.

The cosmetic composition of the present invention can be prepared in any formulation conventionally prepared in the art, for example, solutions, suspensions, emulsions, pastes, sprays, gels, creams, lotions, essences, ointments, packs, It can be formulated into formulations such as sunscreens, makeup bases, surfactant-containing cleansers, foundations, powders, soaps, and body washes.

Hereinafter, the present invention will be described in more detail through examples. However, the following examples are only for facilitating the understanding of the present invention, and the scope of the present invention is not limited to the examples in any sense.

[Example 1-15]

According to the composition of Tables 1-3 below, the cosmetic composition of each Example was prepared.

[Comparative Example 1-5]

According to the composition of Table 4 below, the cosmetic composition of each Comparative Example was prepared.

With respect to the cosmetic composition prepared in each Example and Comparative Example, physical properties were evaluated by the following method, and the results are shown in Tables 1-4 above.

particle uniformity

Immediately after preparing the cosmetic compositions of each Example and Comparative Example, the stability was evaluated by observing the particles in each composition under a microscope (100 magnification).

[Evaluation standard]

○: uniform particles, △: slightly non-uniform particles, X: non-uniform particles

stability

After leaving the cosmetic composition prepared in each Example and Comparative Example for 1 month at 50 ° C., stability was evaluated by observing changes in physical properties such as strength and pH, and property abnormalities such as particle coalescence and separation.

[Evaluation standard]

○: Abnormal properties and no change in physical properties

△: Characteristic abnormality and/or slight change in physical properties

X: Abnormal properties and/or changes in physical properties

As shown in Table 1-4, the cosmetic composition of Examples 1-15 according to the present invention has particle uniformity and/or stability compared to the cosmetic composition of Comparative Example 1-5 using other preservative components instead of sorbitan caprylate. appeared excellent.

[Evaluation of physical properties: antiseptic power]

Bacteria and fungi were injected into the cosmetic compositions prepared in each Example and Comparative Example, respectively, and the preservative power was evaluated by measuring the number of bacteria after leaving them at 22.5 ° C. conditions. The bacterial and fungal test results are shown in Tables 5 and 6, respectively.

As shown in Tables 5 and 6, the cosmetic compositions of Examples 1-15 according to the present invention showed excellent preservative power compared to the cosmetic compositions of Comparative Examples 1 and 2 using other preservative components instead of sorbitan caprylate. . In addition, as shown in Table 4, the cosmetic compositions of Comparative Examples 1 and 2 showed poor particle uniformity and stability. On the other hand, in the case of the cosmetic composition of Comparative Examples 3-5, the preservative power was excellent, but the particle uniformity and stability were poor, as shown in Table 4 above.

Claims (4)

Based on the total weight of the cosmetic composition, 0.5 to 2.5% by weight of glyceryl caprylate, 0.05 to 1% by weight of glyceryl undecylinate and 0.05 to 1% by weight of sorbitan caprylate,
A cosmetic composition wherein the total content of glyceryl caprylate and glyceryl undecylinate and the content of sorbitan caprylate are in a weight ratio of 2.2 to 20:1. delete The cosmetic composition according to claim 1, wherein the mixing ratio of glyceryl caprylate and glyceryl undecylinate is 1 to 15:1 by weight. delete