JP2007223976A - Makeup method for covering leukoderma part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a correcting method for surely covering leukoderma parts of pigmentary skin diseases using color tones within a specific range. <P>SOLUTION: The correcting method of color differences comprises applying a composition having a color tone with an L<SP>*</SP>value of ≤45, an a<SP>*</SP>value of ≤10 and a b<SP>*</SP>value of ≤25, preferably a color tone with an L<SP>*</SP>value of 35-42, an a<SP>*</SP>value of 4-8 and a b<SP>*</SP>value of 18-24 in the L<SP>*</SP>a<SP>*</SP>b<SP>*</SP>color specification system to a skin having a color difference, namely the leukoderma part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention generally relates to a makeup method, and more specifically, to eliminate a difference in appearance between an affected area of pigmented skin disease such as vitiligo and a healthy area (hereinafter referred to as a cover) The present invention relates to a method for correcting a color difference between a healthy skin site and a disease site using a composition having hue and brightness.

  Today, there are many patients who suffer from skin diseases including vitiligo and continue to suffer from the symptoms (see FIG. 1). In particular, medical treatments for many pigmented skin diseases have not been established, and cosmetic covering is an important method.

  As cosmetics for concealing the affected area of pigmented skin diseases so far, for example, a highly concealing material such as titanium oxide or aluminum flakes has been used to completely cover the affected area.

  However, the cover by concealment tends to look unnatural with a matte finish without skin texture (transparency), although the affected area is hidden. To fix this, it was necessary to make a complex step.

  In recent years, a dedicated foundation that covers Ota nevus (blue bruises) and blood vessel types (red bruises) has been developed in a simple and natural manner by utilizing additive color mixing of complementary colors by transmitted light of titanium mica.

  Vitiligo is a pigmented skin disease in which pigments in the skin are decolorized.

  Many patients with vitiligo are not satisfied with the use of general-purpose foundations, concealers, and self-tanning agents.

  The self-tanning agent has an advantage that it is effective for coloring the vitiligo portion and is easy to use for men and children, but has a problem that it takes time to color and it is difficult to match the color with a healthy site.

In addition, cream-type foundations (product name: Covermark, Grapha Laboratories) exist as cosmetics exclusively for vitiligo, but the application to the vitiligo site is complicated, and the foundation can easily be rubbed with sweat, sebum, clothes, etc. May fall, exposing the affected area. (See Figure 2)
For this reason, repainting is indispensable in any of the methods, and it has been difficult to use around the neck and limbs.

In this way, many vitiligo patients are dissatisfied with the color tone and concealment effect of the foundation, and the functionality such as secondary adhesion to makeup holders and clothes, ease of application, and operability such as stickiness. Was not satisfactory. (See Figure 3)
In addition, depending on the mode of the vitiligo site, it may become a mental stress in social life or suffer daily social disadvantages.

  In conventional cosmetics exclusively for vitiligo, it is difficult to reliably cover the vitiligo site, and the function is insufficient. In addition, there has been a demand for a makeup method for completely and reliably concealing and covering the vitiligo site so that patients with vitiligo do not suffer from social disadvantages in daily life and can live in peace.

  Therefore, the present invention has been made in view of the above, and an object thereof is to provide a correction method for reliably covering a vitiligo site of pigmented skin disease using a specific range of color tone.

  The inventors of the present invention focused on the skin color of the affected area and the healthy part of the vitiligo patient, measured the color with a spectrocolorimeter (non-contact image colorimeter manufactured by Asae Design Office), and calculated the amount of pigment in the skin. It was found that the amount of melanin decreased significantly in the vitiligo site, and there was no difference in the amount of oxidized and reduced hemoglobin.

  From this result, it became clear that it was necessary to supplement black and yellow caused by melanin in the cover of the vitiligo site, and for a skin of the vitiligo site having a color difference from the healthy site, a specific range of hues, By using a light-colored composition, it is possible to effectively correct the color difference so as to obtain a natural finish after makeup, and by adding a specific film agent, the sweat resistance is high. It came to develop this invention as what does not adhere next.

That is, the invention described in claim 1 is a melanin composition having a color tone of L ^* a ^* b ^* color system, L ^* value of 45 or less, a ^* value of 10 or less, and b ^* value of 25 or less. This is achieved by a color difference correction method characterized by being applied to skin having a color difference caused by the above.

According to the above invention, for skin having a color difference caused by melanin, the L ^* a ^* b ^* color system has an L ^* value of 45 or less, an a ^* value of 10 or less, and a b ^* value of 25 or less. By applying a composition having a color tone in a specific range, the color difference between the affected part and the healthy part can be more effectively corrected, and a natural finish after makeup can be obtained.

The invention described in claim 2 is a composition having a color tone of L ^* a ^* b ^* color system, L ^* value of 35 to 42, a ^* value of 4 to 8, and b ^* value of 18 to 24. It is achieved by a color difference correction method characterized in that an object is applied to skin having a color difference caused by melanin.

According to the above invention, for a skin having a color difference caused by melanin, the L ^* value is 35 to 42, the a ^* value is 4 to 8, and the b ^* value is 18 in the L ^* a ^* b ^* color system. By applying a composition having a color tone in a specific range of from 24 to 24, the color difference can be more effectively corrected, and a natural finish after makeup can be obtained.

  The invention described in claim 3 is the correction method according to claim 1 or 2, characterized in that the skin having the color difference is a vitiligo site with respect to healthy skin with a pigment skin disease.

According to the above-described invention, the L ^* a ^* b ^* color system, L ^* value is 45 or less, a ^* value is 10 or less, and b ^* value is 25 with respect to vitiligo sites on healthy skin with pigmented skin disease. Hereinafter, preferably, the color difference is effectively corrected by applying a composition having a specific color tone with an L ^* value of 35 to 42, an a ^* value of 4 to 8, and a b ^* value of 18 to 24. Can be made with a natural finish.

  A fourth aspect of the invention is characterized in that, in the correction method according to any one of the first to third aspects, siliconized pullulan is used as a coating agent together with the composition.

  According to the above invention, by adding siliconeized pullulan as a coating agent to the above composition to make a cosmetic product, it is possible to obtain a makeup with a natural finish that has high sweat resistance and does not secondary adhere to clothes. it can.

  The invention described in claim 5 is the correction method according to any one of claims 1 to 4, wherein the composition and the coating agent are used as a part of a liquid cosmetic.

  According to the invention, by applying a liquid cosmetic containing the composition having a color tone in the specific range and a coating agent to skin having a color difference, the color difference is effectively corrected, and a natural finish after makeup is obtained. Can do.

  The invention according to claim 6 is the correction method according to claim 5, wherein the liquid cosmetic is applied to skin having a color difference caused by the melanin using a brush.

  According to the invention, by applying a cosmetic containing a composition having a color tone in the specific range to skin having a color difference caused by melanin with a brush, it is possible to apply intricate details or finely adjust the color tone. It can be made with a natural finish.

  Furthermore, the invention according to claim 7 is achieved by the vitiligo foundation having the color tone according to claim 1 or claim 2.

According to the above invention, in the L ^* a ^* b ^* color system, the color tone of a specific range in which the L ^* value is 45 or less, the a ^* value is 10 or less, and the b ^* value is 25 or less, or L ^* a ^* b ^* in color system, ^{L *} value can provide vitiligo foundation having a color tone of 35 to 42, ^{a *} value is 4 to 8, ^{b *} specified range value is 18 to 24, vitiligo patients The color difference between the affected area and the healthy area can be corrected more effectively, and a makeup with a more natural finish than ever before can be realized, thereby reducing the mental burden in the social life of patients with vitiligo Can improve quality of life.

According to the present invention, the color difference between the skin of a diseased site of pigmented skin disease such as vitiligo and the skin color of healthy skin is represented by L ^* a ^* b ^* color system, L ^* value is 45 or less, a ^* value By using a composition having a specific color tone of 10 or less, b ^* value of 25 or less, preferably L ^* value of 35 to 42, a ^* value of 4 to 8, and b ^* value of 18 to 24 The color difference can be effectively corrected so as to obtain a natural finish after makeup. In addition, for example, by adding a silicone-treated pullulan coating agent to the above composition to make a cosmetic product, it is possible to obtain a makeup with a natural finish that has high sweat resistance and does not secondary adhere to clothes. is there. In addition, according to the present invention, by using a cosmetic containing a composition having a color tone in the specific range, it can be used for all vitiligo patients regardless of skin characteristics such as fair skin or dark black, and is liquid. By using cosmetics, it is possible to apply intricate details using a brush and fine-tune the color tone, resulting in a natural finish after makeup.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

  The method for correcting a vitiligo site of the present invention comprises a color difference between skin of a diseased site of pigmented skin disease such as vitiligo (hereinafter referred to as vitiligo site) and skin color of healthy skin (hereinafter referred to as healthy site) within a specific range. The correction is performed by using a color tone.

  Vitiligo is an unexplained skin disease and is an acquired depigmentation as described above.

  Referring to FIG. 5, the skin color of the affected area and the healthy part of a vitiligo patient was measured with a spectrocolorimeter (non-contact image colorimeter manufactured by Asae Design Office), and the amount of pigment in the skin was calculated. It is shown that the amount of melanin is significantly reduced at the site, and there is no difference in the amount of oxidized and reduced hemoglobin. This is based on the spectral reflectance of the skin of 23 subjects (patients with vitiligo) using the method of Hirota et al. (Hitada et al .: Development of a new spot measurement method, Journal of Cosmet. Chem. Japan, 35-4 (2001) 325-332 The results of clinical trials analyzed by (1).

From this result, it can be seen that the vitiligo site is deficient in black and yellow due to melanin. In other words, it can be seen that the vitiligo site can be effectively corrected by using the color tone for correcting black and yellow. (See Figure 6)
FIG. 6 shows that, in order to correct black and yellow deficient in the vitiligo site, an evaluation cosmetic sample made of a composition having those color tones was prepared and applied to the vitiligo site, and the color difference was reduced. Yes.

  Therefore, the present invention can effectively cover the vitiligo site by calculating a color tone suitable for supplementing the melanin color tone. That is, the color difference between the skin color of the vitiligo site and the skin color of the healthy site is measured by measuring the color tone of the cosmetic sample which is applied to the vitiligo site and shows an effective result among the evaluation cosmetic samples prepared in FIG. The color tone to be corrected can be recognized.

The term “color” as used herein refers to XYZ, RGB, HVC, L ^* a ^* b ^* color system, Munsell color system, spectral reflectance R (λ), and these, which are generally used in chromatics. The color tone that compensates for black and yellow caused by melanin, such as the various values calculated from the sensory evaluation, the evaluation value obtained using the rating scale method by sensory evaluation, that is, the color tone for correcting the vitiligo site can be uniquely expressed. Any value can be used without any particular limitation.

In addition, since there are individual differences in the amount of melanin in the vitiligo site, in the present invention, the color tone for correcting the vitiligo site is the above-mentioned method of Hirota et al. (Hada et al .: Development of a new stain measurement method, Journal of Cosmet. Chem. Japan, 35-4 (2001) 325-332) In the amount of melanin in the skin, the difference in the melanin amount between the affected area (white spot site) and healthy skin around the affected area is corrected to 0.2 or more. The color tone is defined as the color tone necessary for the color tone, and the color tone is expressed by the L ^* a ^* b ^* color system.

For the colorimetry method, for example, various evaluation cosmetic samples prepared in FIG. 6 were applied to white paper using an applicator of 0.101 μm, and immediately after that, a non-contact image color meter with a spectroscopic unit (manufactured by Asae Design Office) Measure the appearance color of the sample using In the L ^* a ^* b ^* color system, the L ^* value indicates lightness (black and white), the smaller the value, the darker (black), the a ^* value and the b ^* value indicate hue / saturation, and a ^{* Indicates} redness and b ^* indicates yellowness.

By the above colorimetric method, a color tone range for covering the vitiligo site is derived. Accordingly, the color tone range for correcting the vitiligo site is L ^* a ^* b ^* color system, L ^* value is 45 or less, a ^* value is 10 or less, b ^* value is 25 or less, preferably L ^* Value is 35 to 42, a ^* value is 4 to 8, and b ^* value is 18 to 24.

  The present invention is not particularly limited as long as the color difference between the skin color of the vitiligo site and the skin color of the healthy site can be corrected by using the color tone of the specific range described above, and any method is adopted. Good.

  In a preferred embodiment of the present invention, the composition having a color tone in the specific range described above is used as a cosmetic containing a coloring material or a coating agent ordinarily used in cosmetics. In order to correct the color difference from the skin color, it can be applied to the vitiligo site.

  The color material used in the present embodiment is not particularly limited as long as it is a color material generally used for cosmetics. For example, ordinary inorganic pigments such as iron oxide and titanium oxide, pearl pigments such as mica titanium, iron oxide-coated mica titanium, and iron oxide-coated mica, organic pigments obtained by raked various dyes, resin powders colored with dyes Body, composite powder encapsulating or covering inorganic pigments and organic pigments.

  The coating agent used in the present embodiment is not particularly limited as long as it is a coating agent generally used for cosmetics. In general, there are many commercially available coating agents or powder dispersants, and it is desirable to dissolve in water or a volatile oil and form a coating by solvent drying. As such a coating agent, various polymer compounds having hydrophilicity and hydrophobicity are desirable. In particular, an oil-based film agent is preferable.

  Typical coating agents include polymers such as polyvinyl alcohol, polyvinyl pyrrolidone, pullulan, trimethylsiloxysilicic acid, acrylic silicone, M unit Q unit silicone resin composition, and siliconeized pullulan. Of these, silicone polymers are particularly desirable from the standpoint of compatibility with silicone oil-based formulations and cosmetic durability. Furthermore, siliconeized pullulan is most preferred.

  As shown in FIG. 4, when a cosmetic containing a composition having a specific color tone is used in the correction method of the present invention, the color material and the coating agent used in the cosmetic are not particularly limited. By using a pulverized pullulan, it is possible to obtain a cosmetic product that has good makeup, does not have secondary adhesion, and has excellent functionality.

  In the present invention, the cosmetic applied to the vitiligo site is not particularly limited as long as it can be applied to the skin. For example, it may be in the form of a general cosmetic such as a foundation.

  In a preferred embodiment of the present invention, the cosmetic product comprising the composition having the color tone in the specific range is in a liquid state, and is particularly characterized by being applied using a brush. Thus, unlike a conventional cream type vitiligo foundation, as shown in FIG. 14, it can be applied with a brush easily even at complicated parts such as the fingertips of the hand or complicated application. In addition, since it is an oily liquid cosmetic product, it is possible to finely adjust the color tone, and it is possible to cope with a subtle difference in color tone that corrects the color difference of the vitiligo site of each vitiligo patient.

  In addition, the correction method having a color tone in a specific range of the present invention can be used regardless of the skin characteristics relating to a specific skin color of an individual such as so-called fair white or black. Thus, conventionally, when concealing a vitiligo site, a commercially available cosmetic or the like was selected and applied uniquely according to the shade (skin white or dark black) of the background of each vitiligo patient. The correction method using a specific range of color tone compensates for the lack of melanin color tone by applying cosmetics using the composition having the specific color range of the present invention to the vitiligo site, regardless of the characteristics of the background of the vitiligo patient. The skin of the vitiligo site is finished in a natural state close to that of the individual, and the makeup of a natural finish as a whole, that is, natural makeup can be obtained.

  Moreover, the correction method which has the color tone of the specific range of this invention eliminates the dissatisfaction of the vitiligo patient with respect to the existing vitiligo foundation as shown in FIG. A high improvement effect on the quality of life of vitiligo patients can be obtained.

  EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited thereto.

  In this example, several types of cosmetics containing a composition supplementing black and yellow melanin colors were prepared, and after measuring their colors, they were applied to vitiligo sites having a color difference from healthy skin. After application, the color tone of cosmetics with high concealment effect was determined, and the optimal specific range of color tone was derived.

In this example, as Examples 1 to 6, a liquid foundation made of a composition such as a coloring material or a coating agent contained in conventional cosmetics was prepared, and the appearance color L ^* a ^* b ^* color system of the foundation was used. Was measured, and the correction effect of vitiligo after application to the vitiligo site was evaluated. Table 3 below shows the colorimetric values of each example and the evaluation results of the correction effect.

In addition, Comparative Example 1 is a commercially available vitiligo cosmetic product (product name: Covermark; manufactured by Grapha Laboratories) which has been used conventionally, and four types of commercially available liquid foundations (product name: Anessa ProSupport Fix (AN) − Comparative Examples 2 to 5 were Ockle 10, Anessa Pro Support Fix (AN) -Ocher 20, Anessa Pro Support Fix (AN) -Ocher 30, Anessa Pro Support Fix (AN) -Ocher 40; manufactured by Shiseido Co., Ltd. . In addition, as Comparative Examples 6 to 9, liquid foundations composed of compositions such as coloring materials and coating agents contained in conventional cosmetics were prepared. In each of the comparative examples, as in the examples, the L ^* a ^* b ^* color system of the foundation appearance color was measured, and the colorimetric values and the white spot correction effect after application to the vitiligo site are shown in Table 3. Shown in

  In addition, since the preparation of the foundations of Examples 1 to 6 and Comparative Examples 6 to 9 is the same as the foundation as a general cosmetic, description of a detailed preparation method is omitted.

  Table 1 shows typical formulation examples of Example 1.

Table 2 shows the difference in the rough composition of the color material between Example 1 and Comparative Examples 2 to 5.

As can be recognized from Table 2, in this example, it can be seen that in the foundations of Examples 1 to 6, the content of the color material for supplementing black and yellow is greatly changed from the commercially available foundation.

  In this example, siliconeized pullulan was used as a coating agent from the functional viewpoint of makeup holding and secondary adhesion, but it is not particularly limited as long as it is a coating agent generally used in cosmetics.

After preparing the foundations of Examples 1 to 6, the foundations of Examples 1 to 6 and Comparative Examples 1 to 9 were measured. For the colorimetry, the foundation samples of Examples 1 to 6 and Comparative Examples 1 to 9 were applied to white paper using an applicator of 0.101 μm, and immediately after that, a non-contact image colorimeter with a spectroscopic unit (Asaeda Design Office) The color of the appearance of each foundation was measured. In the L ^* a ^* b ^* color system, the L ^* value indicates lightness (black and white), the smaller the value, the darker (black), the a ^* value and the b ^* value indicate hue / saturation, and a ^{* Indicates} redness and b ^* indicates yellowness.

  Thereafter, the foundations of Examples 1 to 6 and Comparative Examples 1 to 9 were applied to the vitiligo site that was an affected area of the vitiligo patient, and each correction effect was evaluated.

  When applying, the liquid foundations of Examples 1 to 6 could be easily applied to intricately detailed parts by applying with a brush. In addition, since it is an oily liquid cosmetic, it was possible to finely adjust the color tone according to the skin characteristics of vitiligo patients.

  Table 3 shows the colorimetric values and the evaluation results of the correction effects of Examples 1 to 6 and Comparative Examples 1 to 9.

In Table 3, the correction result of the vitiligo site was performed by visual sensory evaluation. Excellent results with excellent correction of vitiligo sites (exactly the same as healthy skin, ◎), good results (not much different from normal skin, not so uncomfortable) ○, not good, but slightly improved The result (slightly different from healthy skin and feels somewhat uncomfortable) was evaluated as Δ, and the result that the effect was not found (clearly different from healthy skin and completely uncomfortable) was evaluated as ×.

As can be seen from Table 3, Comparative Examples 1 and 6 to 9 in which the evaluation result is Δ are the results showing a little uncomfortable effect, and the same correction results as the evaluation for the conventional commercial products were shown. Examples 2, 4, 5, and 6 in which the evaluation results are indicated by ○ are listed as preferable evaluations. In the L ^* a ^* b ^* color system, the L ^* value is 45 or less, the a ^* value is 10 or less, and the b ^* value. Shows a good correction effect in a color tone range of 25 or less. Examples 1 and 3 in which the evaluation results are indicated by ◎ are further preferred evaluations. In the L ^* a ^* b ^* color system, the L ^* value is 35 to 42, the a ^* value is 4 to 8, and b ^*. A better correction effect was exhibited in a color tone range of 18 to 24.

In Comparative Examples 2 to 5 using four types of commercially available liquid foundations, the colorimetric L ^* a ^* b ^* color system is considerably different from the foundation of Example 1 showing good results. Indicated. Also from FIG. 7, it can be recognized that the difference between the color tone of the foundation of Example 1 and the color tone of Comparative Examples 2 to 5 is greatly deviated. Further, as shown in FIG. 8, the color tone of the foundation of Example 1 is a color tone with considerably increased blackness compared to the color tone of the commercially available liquid foundations of Comparative Examples 2 to 5, and the foundations of Comparative Examples 2 to 5 It turns out that it is a color far from the skin color.

  As another comparative evaluation example, the foundation of Example 1, the conventional white spot foundation (cover mark) of Comparative Example 1, the makeup by the person himself, the existing liquid foundation of Comparative Example 5 (Anessa ProSupport Fix (AN) -Ocher 40 ) Is used by a professional beauty practitioner for a vitiligo patient (44-year-old female), and the color difference between the vitiligo site and the healthy site is evaluated. In order to unify the make-up conditions, the foundations of Example 1, Comparative Example 1 and Comparative Example 5 were used as a control base (product name: d program (Day Care Protector)); Shiseido Co., Ltd. Applied). The make-up is based on the subject's normal makeup method.

  As shown in FIG. 9, the color difference (ΔE) was 13 when nothing was applied to the vitiligo site. In the case of the application of the conventional white spot foundation of Comparative Example 1, the application of the existing foundation of Comparative Example 5 and the makeup of the person himself, the color difference was reduced to 5-6, but the color tone of the specific range of the present invention of Example 1 In the case of applying a foundation having a color difference, the color difference is only 1, and it can be seen that a considerable improvement has been made compared with the foundation exclusively for vitiligo, that is, Comparative Example 1.

  FIG. 10 shows that the foundation of Example 1 having a color tone of the specific range of the present invention and the conventional white spot foundation of Comparative Example 1 are applied to the neck half by half and attached to the collar 3 hours after wearing a new shirt. The result of visual evaluation of the state is shown. As can be seen from FIG. 10, the secondary adhesion of the foundation of Example 1 is less than that of Comparative Example 1. This is due to the use of siliconeized pullulan as a coating agent, as shown in FIG. Therefore, it can be set as the correction | amendment method of the vitiligo site | part to which functionality was added by adding a silicone-ized pullulan to the composition which has the color tone of the specific range of this invention.

  Moreover, FIG. 11 is a graph showing the result shown from the average value of the spectral colorimetry of the vitiligo site and the healthy site before and after application of the foundation of Example 1 in 23 subjects. As is apparent from the graph, the spectrophotometric graphs of the vitiligo site and the healthy site were separated before application, but the two graphs almost coincided after application. This indicates that the vitiligo site after application is in a skin color state that is not inferior to the skin color of the healthy site. This result can also be confirmed from FIGS. In each drawing, the left photograph shows before makeup and the right photograph shows after makeup. In particular, FIG. 14 shows the result of applying with a brush to an intricate and complex white spot such as a fingertip of a hand.

  FIG. 15 shows the results of spectral colorimetry before and after application of the foundation of Example 1 for fair-skinned and dark-spotted patients. As is apparent from the graph, the spectrophotometric graphs of the vitiligo site and the healthy site were separated before application, but the two graphs almost coincided after application. This indicates that the vitiligo site after application is in a skin color state that is not inferior to the skin color of the healthy site.

  16 and 17 show the degree of satisfaction using the foundation of Example 1. FIG. Referring to FIG. 16, it can be seen that the vitiligo patient who was very dissatisfied in the conventional state increased satisfaction by using the foundation of Example 1. In addition, referring to FIG. 17, by using the foundation of Example 1, the skin tone is similar to that of healthy skin desired by a vitiligo patient, and the hiding power of the vitiligo site is also increased. It can be seen that the degree of satisfaction was also increased with respect to the functionality such as good makeup holding without sticking and operability such as non-stickiness at the time of application.

  Therefore, from FIGS. 11 to 17, by using the foundation of Example 1 of the present invention, the color tone of the vitiligo site can be matched with the skin color close to the healthy site, and a natural finish makeup can be realized. The mental burden in the social life of patients with vitiligo can be reduced and the quality of life can be improved.

  In addition, the foundation of Example 1 of the present invention is excellent in operability, such as being easy to apply to affected areas by making liquid cosmetics, and easy to apply to intricate parts by using brushes. By using a pullulan coating agent, it is possible to provide a correction method that is excellent in functionality, such as being difficult to have makeup and secondary adhesion.

  Moreover, when covering a vitiligo site conventionally, although the commercial cosmetics etc. which match | combined the shade of the skin, such as the fairness and the color black of a vitiligo patient, were applied, the foundation of Example 1 of this invention is a vitiligo patient's foundation. Regardless of skin characteristics, by applying a cosmetic product comprising a composition having a color tone of the specific range of the present invention to the vitiligo site, the skin color of the vitiligo site is finished in a natural state close to the background, and a makeup with a natural finish as a whole In other words, it can be a natural make.

Therefore, the correction method using the color tone of the specific range according to the present invention is such that the L ^* a ^* b ^* color system has an L ^* value of 45 or less, an a ^* value of 10 or less, and a b ^* value of 25 or less, preferably L ^By applying a cosmetic product composed of a composition having a color tone of 35 to 42, a ^* value of 4 to 8 and b ^* value of 18 to 24 to the vitiligo site, a melanin color that is lacking only in the vitiligo site is obtained. Can be supplemented, and can be an effective natural make. Thereby, the quality of life in the daily life of the vitiligo patient can be greatly improved.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. It can be changed.

It is a figure explaining main skin diseases. It is a figure explaining the existing method which covers a vitiligo site | part. It is a figure which shows the dissatisfaction degree with respect to the existing foundation only for vitiligo. It is a figure explaining the film agent used by this invention. It is a figure which shows the analysis of the skin pigment amount of a vitiligo site | part and a healthy site | part. It is a figure which shows the color difference of a vitiligo site | part and a healthy site | part. It is a figure which shows the color tone which correct | amends the color difference of the vitiligo site | part of this invention. It is a figure which shows the color tone which correct | amends the color difference of the vitiligo site | part of this invention. It is a figure which shows the correction effect of the color difference which compared Example 1, the comparative example 1 and the comparative example 5, and the person's make. It is the figure which compared Example 1 and Comparative Example 1 about the secondary adhesion with respect to clothes. FIG. 6 is a diagram illustrating a result of spectral colorimetry showing the color difference correction effect of Example 1. It is the photograph before and after use which shows the cover effect of Example 1. FIG. It is the photograph before and after use which shows the cover effect of Example 1. FIG. It is the photograph before and after use which shows the cover effect of Example 1. FIG. The results of spectral colorimetry before and after application showing the color difference correction effect of Example 1 are shown for fair-skinned and dark-spotted white patients. It is a figure which shows the satisfaction of Example 1. FIG. It is a figure which shows the questionnaire result which shows the satisfaction of Example 1. FIG.

Claims (7)

A composition having a color tone with an L ^* a ^* b ^* color system, an L ^* value of 45 or less, an a ^* value of 10 or less, and a b ^* value of 25 or less is applied to skin having a color difference caused by melanin. A color difference correction method characterized by the above. Skin having a color difference caused by melanin in a composition having a color tone of L ^* a ^* b ^* color system, L ^* value of 35 to 42, a ^* value of 4 to 8, and b ^* value of 18 to 24 A method for correcting a color difference, which is applied to the invention.   The method according to claim 1 or 2, wherein the skin having the color difference is a vitiligo site with respect to healthy skin with pigmented skin disease.   The method according to any one of claims 1 to 3, wherein a siliconized pullulan is used as a coating agent together with the composition.   The method according to claim 1, wherein the composition and the coating agent are used as a part of a liquid cosmetic.   The method according to claim 5, wherein the liquid cosmetic is applied to a skin having a color difference caused by the melanin using a brush. The foundation for vitiligo which has the color tone of Claim 1 or Claim 2.