KR20210015291A - Dandruff Relieving Scalp Cleansing Composition - Google Patents

Abstract

The present invention relates to a scalp cleansing composition capable of alleviating dandruff on the scalp, comprising polyquaternium-52, ethanol and a dandruff reliever. The present invention, more specifically, relates to a scalp cleansing composition for alleviating dandruff, capable of effectively implementing a dandruff care effect even with a small content of dandruff alleviating materials.

Description

Dandruff Relieving Scalp Cleansing Composition

The present invention relates to a composition for cleaning the scalp, which can relieve dandruff of the scalp by using polyquaternium-52, ethanol, and a dandruff-relieving component.

The epidermal layer of the skin is constantly replaced, and the cells are gradually pushed outward and die, then fall apart. Likewise, the scalp is replaced with new cells every about a month, and for most people, the size of this piece of skin is too small to be noticeable. However, there are cases in which the keratinocytes are excessively produced and the keratinocyte masses are visible and peeled off the scalp, which is called dandruff.

Dandruff can be divided into common dandruff, which has mild symptoms, psoriasis, where scurf is severely exfoliated, and seborrheic-dandruff, in which scales accumulate in the scalp with excessive sebum secretion. . These itchiness and dandruff are caused by internal and external factors of the body, and in order to get rid of itchiness or dandruff caused by these factors, topical treatments such as anti-dandruff drugs, quasi-drugs, and cosmetics are used.

Anti-dandruff substances known so far include zinc-pyrithione, pyrotone olamine, sulfur, climbazole, and salicylic acid.

Most of the anti-dandruff drugs currently used in general anti-dandruff products are substances characterized by a strong sterilizing power against Malassezia, and most of them are irritating and toxic to the skin, making it difficult to use more than a certain amount. Its content is regulated locally. Therefore, there is a need for a study on a composition capable of realizing excellent dandruff relieving efficacy while securing the stability to the skin.

An object of the present invention for solving the above problems is to provide a dandruff-relieving scalp cleaning composition that contains a low content of a dandruff-relieving component that can irritate the skin and improves the dandruff care effect.

Aspects of the present invention to achieve the above object,

Polyquaternium-52 provides a composition for cleaning the scalp to relieve dandruff containing 0.01 to 1% by weight, an ethanol content of 0.1 to 1% by weight, and 0.01 to 1% by weight of a dandruff relief component.

The dandruff-relieving scalp cleaner composition of the present invention effectively delivers a dandruff-relieving component when used and has an excellent dandruff relief effect even if it contains a small amount of the dandruff-relieving component.

Hereinafter, the present invention will be described in detail so that those skilled in the art can easily implement it. However, this is for the purpose of describing the present invention and should not be construed in the direction of limiting the scope of the present invention.

According to an embodiment of the present invention, the composition for cleaning the scalp to relieve dandruff of the present invention includes polyquaternium-52, ethanol, a dandruff relief component, and a surfactant. In addition, the dandruff relief scalp cleaning composition may optionally include additives commonly used in the field of scalp cleaning compositions, for example, viscosity modifiers, pH modifiers, conditioning agents, fragrances, preservatives, proteins, and the like. In addition, the dandruff relief scalp cleaning composition may further include water, for example, purified water in the balance.

Cationic polymer

In one embodiment of the present invention, the cationic polymer has a crosslinkable polymer structure, which helps to form viscosity and stability in the formulation, and aids in delivery of an effective ingredient due to the characteristics of a crosslinked network structure. For example, the cationic polymer may be polyquaternium-52.

The polyquaternium-52 content may be included in an amount of 0.01 to 1% by weight, for example, 0.05 to 0.5% by weight, based on the total weight of the scalp cleaning composition. When the content of the polyquaternium-52 is less than 0.01% by weight, the delivery effect of the effective ingredient does not occur, and when it exceeds 1% by weight, it is difficult to implement the formulation due to the formation of a complex with an anion, and the viscosity is formed too high, and anti-dandruff properties This is poor and the degree of irritation to the skin becomes severe.

ethanol

In one embodiment of the present invention, the ethanol may impart a clean feeling of use of the scalp after initial foaming and use. The content of ethanol is preferably contained in an amount of 0.1 to 1% by weight based on the total weight of the scalp cleaning composition.

If the ethanol content is less than 0.1% by weight, the initial foaming power is lowered. When the ethanol content exceeds 1% by weight, the bubble retention is poor, the viscosity decreases, and the conditioning effect of the hair decreases, resulting in hair entanglement. Also, the degree of irritation to the skin becomes severe.

Dandruff relief ingredients

In one embodiment of the present invention, the dandruff relief component has anti-dandruff ability to inhibit the growth of dandruff bacteria (eg, Malassezia furfur), and can manage excessive dandruff of the scalp.

The dandruff relief component may be at least one selected from the group consisting of zinc-pyrithione, pyrotone olamine, sulfur, climbazole, and salicylic acid. For example, the dandruff relief component may be zinc pyrithione.

The dandruff relief component may be contained in an amount of 0.01 to 1% by weight, for example, 0.05 to 0.5% by weight, based on the total weight of the scalp cleaning composition. If the content of the dandruff relief component is less than 0.01% by weight, the dandruff relief effect is inferior. When the content of the dandruff relieving component exceeds 1% by weight, there is a concern of irritation and damage to the skin including the scalp.

Surfactants

In one embodiment of the present invention, the dandruff relief scalp cleaner composition may further include at least one surfactant selected from the group consisting of cationic surfactants, anionic surfactants, amphoteric surfactants, and nonionic surfactants. have.

The cationic surfactant is at least one quaternary ammonium selected from the group consisting of behentrimonium chloride, stearimonium chloride and cetrimonium chloride, or behenamidopropyldimethylamine and stearamidopropyldimethylamine. It may be one or more tertiary amidoamines selected from the group consisting of, or a mixture thereof.

The anionic surfactants include sodium laureth sulfate, sodium cocoyl isethionate, disodium cocoamphodiacetate, sodium lauryl sulfate, ammonium lauryl sulfate, sodium polyoxyethylene lauryl sulfate, and ammonium polyoxyethylene lauryl sulfate. It may be one or more selected from the group consisting of.

The amphoteric surfactants are cocamidopropylbetaine, lauramidopropylbetaine, laurylbetaine, coco-betaine, myristylbetaine, cocodimethylcarboxymethylbetaine, lauryldimethylcarboxymethylbetaine, cocamido Propylhydroxysulfatein, coco-hydroxysulfatein, coco-sultein, erucamidopropylhydroxysulfatein, hydroxysulfatein, lauramidopropylhydroxysulfatein, laurylhydroxysulfatein and laurylsultaine It may be one or more selected from the group consisting of tain.

The nonionic surfactant may be at least one selected from the group consisting of cocamide methylMA, cocamide DIA, cocamide MI, and lauryl acid DIA.

As an example, the surfactant may include sodium laureth sulfate and cocamidopropyl betaine. The surfactant may be contained in an amount of 0.5 to 15% by weight, for example, 1 to 10% by weight based on the total weight of the composition.

additive

In one embodiment of the present invention, the dandruff relief scalp cleaner composition may further include one or more additives selected from the group consisting of commonly used viscosity modifiers, pH modifiers, conditioning agents, flavors, preservatives and proteins. The additives may be contained in an amount of 0.5% to 20% by weight, respectively, based on the total weight of the composition.

Hereinafter, the present invention will be described in more detail through examples and comparative examples. This is only for the description of the present invention, and thus the scope of the present invention is not limited.

[Example 1-4 and Comparative Example 1-8]

The composition of Table 1 and other additives were appropriately blended to prepare a dandruff relief scalp cleaner composition. The units in the table below are% by weight.

[Test Example 1: Confirmation of viscosity implementation]

A shampoo was prepared by blending the scalp cleaning compositions of Examples 1-4 and Comparative Examples 1-8 according to Table 1, and Spindle #4 using a rheometer (Brookfield Rheometer RVDV-III), 15 at 10 rpm evaluation conditions. The viscosity result after second was measured.

Example Comparative example One 2 3 4 5 One 2 3 4 5 6 7 8 Viscosity (cPs) 6,500 9,000 7,900 7,000 8,000 5,000 20,000 8,500 2,000 7,000 6,000 6,500 7,000

Referring to Table 2, the viscosity range must be formed at a level of 5,000 to 10,000 cPs to facilitate user use.

Example 1-5, Comparative Example 1, Comparative Example 3, and Comparative Example 5-8 When used, it can be seen that the viscosity was formed at a level that was easy to use because it did not flow down.

However, Comparative Example 2 in which the polyquaternium-52 content was exceeded and Comparative Example 4 in which the ethanol content was exceeded were found to have poor viscosity.

[Test Example 2: Evaluation of anti-dandruff power]

The compositions of Example 2 and Comparative Example 1 were diluted in a medium (Pityrosporum medium) to perform a Minimum Inhibitory Concentration (MIC) test for the dandruff bacteria Malassezia furfur (KCTC 7546).

※ The smaller the value of MIC (minimum growth inhibitory concentration), the better the anti-dandruff bacteria are.

MIC(ppm) Example 1 3,125-6,250 Example 2 390~781 Example 3 3,125-6,250 Example 4 3,125-6,250 Example 5 781-1,562 Comparative Example 1 12,500 ~ 25,000 Comparative Example 3 12,500 ~ 25,000 Comparative Example 5 50,000 ~ 100,000 Comparative Example 6 12,500 ~ 25,000 Comparative Example 7 12,500 ~ 25,000

As a result of the test, it was confirmed that Example 1-5 according to the present invention exhibited a better anti-dandruff effect compared to Comparative Example 1, Comparative Example 3, and Comparative Example 5-7.

[Test Example 3: Evaluation of feeling of use]

In order to evaluate the feeling of use, 30 adult men and women were selected to use the scalp cleaner compositions of Examples 3 to 4 and Comparative Examples 3 to 4, and then evaluated on a 5-point scale in the following questionnaire, and the results are shown in Table 4 below. .

-Evaluation criteria: Very bad (1), bad (2), fair (3), good (4), very good (5)

Survey item Example 3 Example 4 Comparative Example 3 Comparative Example 4 Bubbles easily occur 4.0 4.3 3.5 4.3 The scalp is clean 4.0 4.5 3.6 4.4 No irritation after use 4.3 4.2 4.3 3.5

As can be seen from the results of Table 4, it was confirmed that Examples 3 and 4 had superior initial foaming compared to Comparative Examples 3 and 4, and the scalp was clean and irritated after use.

[Test Example 4: Human patch test-stimulation evaluation]

In order to evaluate the degree of irritation of the scalp cleaner compositions of Examples 1 to 4 and Comparative Examples 2 and 4 shown in Tables 1 and 2, 30 adult men and women were selected.

After loading the hair cleaner composition into a chamber, it is applied to the inside of the upper arm of the arm. The patch was detached 24 hours after attaching, and the degree of stimulation 1 hour and 24 hours later was determined.

Survey item Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 2 Comparative Example 4 Comparative Example 8 Judgment Light stimulation Light stimulation Light stimulation Light stimulation Light stimulation Heavy stimulation Strong stimulation Strong stimulation

As can be seen from the results of Table 5, in Example 1-5, it was confirmed that the degree of skin irritation was low compared to Comparative Examples 2, 4 and 8 containing a large amount of ethanol, polyquaternium-52, and dandruff alleviating components. Could

Claims (2)

Polyquaternium-52 0.01 to 1% by weight, an ethanol content of 0.1 to 1% by weight, and a dandruff relief scalp cleaning composition containing 0.01 to 1% by weight of a dandruff relief component. The method of claim 1,
The dandruff relief component comprises at least one selected from zinc-pyrithione, pyrotone olamine, sulfur, climbazole, salicylic acid, etc. Composition for cleaning the scalp.