Composition for promoting blackening of forehead white hair as well as preparation method and application of composition

Abstract

The invention provides a composition for promoting blackening of forehead white hair as well as a preparation method and application of the composition, and belongs to the technical field of cosmetics. The composition is prepared from the following components in parts by weight: 1 to 6.5 parts of radix ginseng, 1 to 44.5 parts of radix astragali membranaci extract, 0.1 to 4 parts of rhizoma atractylodis macrocephalae rhizome extract, 0.1 to 2.2 parts of rhizoma atractylodis rhizome extract, 0.01 to 5.334 parts of cortex magnoliae officinalis extract and 0.01 to 2.565 parts of herba leonuri extract. The ginseng root, the astragalus membranaceus root extract, the rhizoma atractylodis macrocephalae rhizome extract, the rhizoma atractylodis rhizome extract, the cortex magnoliae officinalis bark extract and the herba leonuri extract are added into the ethanol solution, so that the effects of active ingredients of the plant extracts can be effectively exerted, the hair and the nutritional ingredients required by hair follicles are provided, and the prehead white hair is synergistically promoted to be black. The preparation method is simple, easy to operate and suitable for industrial production.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics, and in particular relates to a composition for promoting the darkening of forehead white hair, and a preparation method and application thereof. Background Art

[0002] As we age, scalp hair follicles gradually become damaged and atrophied, leading to a decrease in melanocytes, resulting in graying hair. Furthermore, due to physical weakness, work pressure, and irregular lifestyles, which adversely affect physiological functions, gray hair is becoming a common phenomenon among younger people. With economic development and improved living standards, people are increasingly valuing the importance of maintaining darker hair. They desire a wider range of hair-darkening products, particularly those with specialized functions, such as those for darkening gray hair on the forehead, back of the head, and temples.

[0003] Currently, hair dyes on the market primarily achieve the goal of darkening hair by dyeing existing hair. However, their drawback is that the permanent effect isn't absolute. Hair grows daily, and while the color of the dyed strands doesn't change quickly, new hair will still be gray. Their permanent effect only guarantees the durability of the color of the dyed strands. Furthermore, most dyes use aniline-based dye intermediates, which are among the most irritating and toxic among cosmetic raw materials. Therefore, there is an urgent need for a product specifically designed to darken gray hair, particularly those on the forehead. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a composition for promoting the blackening of white hair on the forehead, and a preparation method and application thereof, wherein the composition can promote the blackening of white hair on the forehead.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] The invention provides a composition for promoting the blackening of forehead white hair. The composition comprises the following components in parts by weight: 1 to 6.5 parts of ginseng roots, 1 to 44.5 parts of Astragalus membranaceus root extract, 0.1 to 4 parts of Atractylodes macrocephala rhizome extract, 0.1 to 2.2 parts of Atractylodes lancea rhizome extract, 0.01 to 5.334 parts of Magnolia officinalis bark extract and 0.01 to 2.565 parts of Leonurus japonicus extract.

[0007] Preferably, the composition further comprises the following components in parts by weight: 30 to 90.75 parts of anhydrous ethanol and 10 to 97.966 parts of water.

[0008] The invention provides a composition for promoting the blackening of forehead white hair. The composition is prepared from the following components in parts by weight: 1 to 6.5 parts of ginseng roots, 1 to 44.5 parts of Astragalus membranaceus root extract, 0.1 to 4 parts of Atractylodes macrocephala rhizome extract, 0.1 to 2.2 parts of Atractylodes lancea rhizome extract, 0.01 to 5.334 parts of Magnolia officinalis bark extract, 0.01 to 2.565 parts of Leonurus japonicus extract, 30 to 90.75 parts of anhydrous ethanol and 10 to 97.966 parts of water.

[0009] Preferably, it is made from the following components in parts by weight: 5 parts of ginseng roots, 5 parts of Astragalus membranaceus root extract, 4 parts of Atractylodes rhizome extract, 2 parts of Atractylodes rhizome extract, 5 parts of Magnolia officinalis bark extract, 2 parts of Leonurus japonicus extract, 58 parts of anhydrous ethanol and 19 parts of water.

[0010] The present invention provides a method for preparing the above composition, comprising the following steps:

[0011] (1) mixing the anhydrous ethanol and water to obtain an ethanol solution;

[0012] (2) Mixing the ginseng root, the Astragalus membranaceus root extract, the Atractylodes macrocephala rhizome extract, the Atractylodes lancea rhizome extract, the Magnolia officinalis bark extract, the Leonurus japonicus extract, and the ethanol solution.

[0013] The present invention provides an application of the above composition or the composition prepared by the preparation method in blackening white hair.

[0014] Preferably, in the above application in blackening of white hair, the white hair is white hair on the forehead.

[0015] The present invention provides an application of the above composition or the composition prepared by the preparation method in preparing a white hair blackening product.

[0016] Preferably, in the above application in the preparation of a white hair darkening product, the white hair is white hair on the forehead.

[0017] The present invention provides a method for promoting gray hair on the forehead, comprising the following steps: applying the above composition or the composition prepared by the preparation method to the scalp and hair.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a composition for promoting the blackening of forehead gray hair, as well as a preparation method and application thereof. The present invention adds ginseng root, Astragalus membranaceus root extract, Atractylodes macrocephala rhizome extract, Atractylodes lancea rhizome extract, Magnolia officinalis bark extract and Leonurus japonicus extract to an ethanol solution, which can effectively exert the efficacy of the active ingredients of each plant extract, provide the hair with the nutrients required for blackening and hair follicles, and synergistically promote the blackening of forehead gray hair.

[0020] The preparation method of the present invention is simple and easy to operate and is suitable for industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a picture showing the changes in the white hair on Ms. Zhang's forehead before and after using the composition of Example 1;

[0022] Figure 2 This is a picture of the change of gray hair on Ms. Wang's forehead before and after using the composition of Example 1;

[0023] Figure 3 This is a picture of the change in gray hair on Mr. Zhang's forehead before and after using the composition of Example 1;

[0024] Figure 4 The following are pictures of the changes in the white hair on Ms. Sun's forehead before and after using the composition of Example 1. DETAILED DESCRIPTION

[0025] The invention provides a composition for promoting the blackening of forehead white hair. The composition comprises the following components in parts by weight: 1 to 6.5 parts of ginseng roots, 1 to 44.5 parts of Astragalus membranaceus root extract, 0.1 to 4 parts of Atractylodes macrocephala rhizome extract, 0.1 to 2.2 parts of Atractylodes lancea rhizome extract, 0.01 to 5.334 parts of Magnolia officinalis bark extract and 0.01 to 2.565 parts of Leonurus japonicus extract.

[0026] In the present invention, the ginseng root has antioxidant and anti-inflammatory effects, can help enhance immunity, improve the body's resistance to diseases, and also has antioxidant and anti-inflammatory properties, can help scavenge free radicals, reduce cell damage and inflammatory reactions; the Astragalus membranaceus root extract can scavenge excess free radicals in the body, increase cell activity, thereby delaying the cell death process, and also help to enhance physical fitness and improve resistance; the Atractylodes rhizome extract is used to treat symptoms of hyperhidrosis, especially has a good therapeutic effect on spontaneous sweating caused by spleen deficiency; the Atractylodes rhizome extract has a significant dehumidifying effect, and can prevent and treat gray hair caused by lack of nutrition due to damage to the spleen (reduced digestive function) caused by thinking too much; the Magnolia officinalis bark extract has the effects of drying dampness, promoting qi and eliminating fullness, and eliminating accumulation; the Leonurus japonicus extract has the effects of clearing heat and detoxifying.

[0027] The invention provides a composition for promoting the blackening of forehead white hair. The composition is prepared from the following components in parts by weight: 1 to 6.5 parts of ginseng roots, 1 to 44.5 parts of Astragalus membranaceus root extract, 0.1 to 4 parts of Atractylodes macrocephala rhizome extract, 0.1 to 2.2 parts of Atractylodes lancea rhizome extract, 0.01 to 5.334 parts of Magnolia officinalis bark extract, 0.01 to 2.565 parts of Leonurus japonicus extract, 30 to 90.75 parts of anhydrous ethanol and 10 to 97.966 parts of water.

[0028] Preferably, it is made from the following components in parts by weight: 5 parts of ginseng roots, 5 parts of Astragalus membranaceus root extract, 4 parts of Atractylodes rhizome extract, 2 parts of Atractylodes rhizome extract, 5 parts of Magnolia officinalis bark extract, 2 parts of Leonurus japonicus extract, 58 parts of anhydrous ethanol and 19 parts of water.

[0029] In the present invention, the composition further comprises the following components by weight: 30 to 90.75 parts of anhydrous ethanol and 10 to 97.966 parts of water. By adding Panax ginseng root, Astragalus membranaceus root extract, Atractylodes macrocephala rhizome extract, Atractylodes lancea rhizome extract, Magnolia officinalis bark extract, and Leonurus japonicus extract to the ethanol solution, the present invention can significantly exert the efficacy of each plant active ingredient, achieving a synergistic effect of promoting the darkening of forehead gray hair.

[0030] The active ingredients in the composition of the present invention that promote the transformation of gray hair to darker hair are all derived from plant extracts, making them highly safe. The present invention does not specifically limit the sources of the extracts of Panax ginseng root, Astragalus membranaceus root, Atractylodes macrocephala rhizome extract, Atractylodes lancea rhizome extract, Magnolia officinalis bark extract, and Leonurus japonicus extract; the extracts can be prepared using methods known in the art or commercially available products.

[0031] The present invention provides a method for preparing the above composition, comprising the following steps:

[0032] (1) mixing the anhydrous ethanol and water to obtain an ethanol solution;

[0033] (2) The ginseng root, Astragalus membranaceus root extract, Atractylodes macrocephala rhizome extract, Atractylodes lancea rhizome extract, Magnolia officinalis bark extract, and Leonurus japonicus extract are mixed with the ethanol solution.

[0034] In the above preparation method, the present invention does not particularly limit the mixing method, and the purpose of uniform mixing can be achieved by using methods known in the art. The present invention uses ethanol solution added to ginseng root, Astragalus membranaceus root extract, Atractylodes rhizome extract, Atractylodes rhizome extract, Magnolia officinalis bark extract, and Leonurus japonicus extract to better promote the active ingredients of each plant extract, thereby achieving the purpose of blackening gray hair, especially gray hair on the forehead.

[0035] The present invention provides an application of the above composition or the composition prepared by the preparation method in blackening white hair.

[0036] In the above application of blackening white hair, the white hair is the white hair on the forehead.

[0037] The present invention provides an application of the above composition or the composition prepared by the preparation method in preparing a white hair blackening product.

[0038] In the application of the above-mentioned method for preparing a product for nourishing white hair, the white hair is white hair on the forehead. The product includes an essence or a hair nourishing agent.

[0039] The present invention provides a method for promoting gray hair on the forehead, comprising the following steps: applying the above composition or the composition prepared by the preparation method to the scalp and hair.

[0040] In the present invention, the application dosage is 10 to 18 mL / day, and the scalp and hair of the present invention are the scalp and hair at the forehead where white hair occurs.

[0041] In the present invention, unless otherwise specified, all raw material components are commercially available products well known to those skilled in the art.

[0042] The technical solutions provided by the present invention are described in detail below with reference to the embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0043] In the following examples, the Astragalus membranaceus root extract was purchased from Xi'an Ruiying Biotechnology Co., Ltd.; the Atractylodes macrocephala rhizome extract was purchased from Baoji Kaiweikang Biotechnology Co., Ltd.; the Atractylodes lancea rhizome extract was purchased from Shaanxi Zhenai Biotechnology Co., Ltd.; the Magnolia officinalis bark extract was purchased from Baoji Kaiweikang Biotechnology Co., Ltd.; the Leonurus japonicus extract was purchased from Shaanxi Zhenai Biotechnology Co., Ltd., item number ymctqw; and the ginseng root was purchased from Xi'an Luoshen Biotechnology Co., Ltd.

[0044] Example 1

[0045] A composition for promoting the darkening of white hair on the forehead, the composition being made from the following components:

[0046] 5g of Panax Ginseng root, 5g of Astragalus Membranaceus root extract, 4g of Atractylodes macrocephala rhizome extract, 2g of Atractylodes lancea rhizome extract, 5g of Magnolia officinalis bark extract, 2g of Leonurus japonicus extract, 58g of anhydrous ethanol and 19g of water.

[0047] The preparation method of the above-mentioned composition for promoting the darkening of forehead white hair comprises the following steps:

[0048] 58 g of anhydrous ethanol and 19 g of water are mixed to obtain an ethanol solution, and then 5 g of ginseng (PANAX GINSENG) root, 5 g of Astragalus membranaceus (ASTRAGALUS MEMBRANACEUS) root extract, 4 g of Atractylodes macrocephala (ATRACTYLODES MACROCEPHALA) rhizome extract, 2 g of Atractylodes lancea (ATRACTYLODES CHINENSIS) rhizome extract, 5 g of Magnolia officinalis (MAGNOLIA OFFICINALIS) bark extract, and 2 g of Leonurus japonicus (LEONURUS JAPONICUS) extract are mixed with the ethanol solution to obtain a composition for promoting the blackening of forehead white hair.

[0049] Example 2

[0050] A composition for promoting the darkening of white hair on the forehead, the composition being made from the following components:

[0051] 1g of Panax Ginseng root, 44.5g of Astragalus Membranaceus root extract, 0.1g of Atractylodes macrocephala rhizome extract, 0.1g of Atractylodes lancea rhizome extract, 0.01g of Magnolia officinalis bark extract, 0.01g of Leonurus japonicus extract, 30g of anhydrous ethanol and 97.966g of water.

[0052] The preparation method of the above-mentioned composition for promoting the darkening of forehead white hair comprises the following steps:

[0053] Mix 30 g of anhydrous ethanol and 97.966 g of water to obtain an ethanol solution, and then mix 1 g of ginseng (PANAX GINSENG) root, 44.5 g of Astragalus membranaceus (ASTRAGALUS MEMBRANACEUS) root extract, 0.1 g of Atractylodes macrocephala (ATRACTYLODESMACROCEPHALA) rhizome extract, 0.1 g of Atractylodes lancea (ATRACTYLODES CHINENSIS) rhizome extract, 0.01 g of Magnolia officinalis (MAGNOLIA OFFICINALIS) bark extract, and 0.01 g of Leonurus japonicus (LEONURUS JAPONICUS) extract with the ethanol solution to obtain a composition for promoting the blackening of forehead white hair.

[0054] Example 3

[0055] A composition for promoting the darkening of white hair on the forehead, the composition being made from the following components:

[0056] 6.5g of ginseng root, 1g of Astragalus membranaceus root extract, 2g of Atractylodes macrocephala rhizome extract, 1g of Atractylodes lancea rhizome extract, 2.5g of Magnolia officinalis bark extract, 1g of Leonurus japonicus extract, 90.75g of anhydrous ethanol and 10g of water.

[0057] The preparation method of the above-mentioned composition for promoting the darkening of forehead white hair comprises the following steps:

[0058] Mix 90.75 g of anhydrous ethanol and 10 g of water to obtain an ethanol solution, and then mix 6.5 g of ginseng (PANAX GINSENG) root, 1 g of Astragalus membranaceus (ASTRAGALUS MEMBRANACEUS) root extract, 2 g of Atractylodes macrocephala (ATRACTYLODESMACROCEPHALA) rhizome extract, 1 g of Atractylodes lancea (ATRACTYLODES CHINENSIS) rhizome extract, 2.5 g of Magnolia officinalis (MAGNOLIA OFFICINALIS) bark extract, and 1 g of Leonurus japonicus (LEONURUS JAPONICUS) extract with the ethanol solution to obtain a composition for promoting the blackening of forehead white hair.

[0059] Typical Case 1

[0060] Verification of the effect of the composition of Example 1 on the white hair on the forehead

[0061] Ms. Zhang, 52 years old, had widespread white hair, particularly concentrated on her forehead and crown, before using the composition of the present invention. Statistics show that the number of white hairs accounted for approximately 50% of her total hair. The silvery white color of the white hair contrasted sharply with the surrounding black hair, visually making her look older and seriously affecting her overall aesthetic appearance. Under natural light, the white hairs reflected light strongly, making her hair appear dry and dull. Duration of the gray hair development: Ms. Zhang reported that at around the age of 45, her physical condition declined sharply due to health reasons, and countless white hairs appeared on her crown and forehead, but she did not pay much attention to it at the time. By the age of 52, the gray hair had developed to a relatively severe level, and the gray hair had been present for a total of approximately 7 years. During this period, Ms. Zhang tried various products on the market claiming to turn gray hair black, but none of them achieved significant results.

[0062] Treatment method: After cleaning the hair and massaging the scalp, apply 10 mL of the composition of Example 1 to the scalp and hair roots at the site of gray hair once a day. Comb the hair for 10 minutes each time. Apply the composition of Example 1 once every other day for a total of 30 days.

[0063] Calculate the gray hair blackening rate (%) = (1-the number of gray hair roots after using the composition of the present invention ÷ the number of gray hair roots before using the composition of the present invention) × 100%.

[0064] After using the composition of Example 1 for 30 days, the roots of the white hair on Ms. Zhang's forehead and the hair on her head turned black, and the rate of turning white hair black reached 70%.

[0065] After using the composition of Example 1 for 30 days, the effects before and after use are shown in Table 1. Figure 1 .

[0066] Figure 1 The results showed that the roots of the white hair on Ms. Zhang's forehead and most of her hair turned black, indicating that the composition of the present invention can significantly promote the blackening of white hair on the forehead.

[0067] Typical Case 2

[0068] Verification of the effect of the composition of Example 1 on the white hair on the forehead

[0069] Ms. Wang, 48 years old, had gray hair primarily concentrated along her hairline and crown before using the composition of the present invention. The gray hairs accounted for approximately 30% of her total hair volume, some of which had a grayish-white hue. The hair was finer and softer than her original black hair, and the ends were prone to splitting. The prominent location of the gray hair on her forehead significantly impacted her appearance. Even under indoor lighting, the gray hairs were clearly visible, diminishing the overall texture of her hair. The duration of the gray hair development: Ms. Wang explained that her poor diet in her youth led to changes in her health after giving birth at age 30. Staying up late and experiencing stress led to the appearance of gray hair on her forehead. Initially, there were only a few strands, but with increasing work pressure and an irregular lifestyle, the number of gray hairs rapidly increased. By the time she was 48, the gray hair had been present for 18 years. During these 18 years, she experienced significant psychological stress due to the gray hair issue and lacked confidence in her image.

[0070] Treatment method: After cleaning the hair and massaging the scalp, apply 13 mL of the composition of Example 1 to the scalp and hair roots at the site of gray hair once a day. Comb the hair for 10 minutes each time. Apply the composition of Example 1 once every other day for a total of 30 days.

[0071] Calculate the gray hair blackening rate (%) = (1-the number of gray hair roots after using the composition of the present invention ÷ the number of gray hair roots before using the composition of the present invention) × 100%.

[0072] After using the composition of Example 1 for 30 days, the roots of the white hair on Ms. Wang's forehead and most of her hair turned black. After using the composition of Example 1 for 30 days, the rate of turning white hair black reached 90%.

[0073] After using the composition of Example 1 for 30 days, the effects before and after use are shown in Table 1. Figure 2 .

[0074] Figure 2 The results showed that the roots of Ms. Wang's white hair on her forehead and most of her hair turned black, indicating that the composition of the present invention can significantly promote the blackening of white hair on the forehead.

[0075] Typical Case 3

[0076] Verification of the effect of the composition of Example 1 on the white hair on the forehead

[0077] Mr. Zhang, 45 years old, had gray hair primarily concentrated along his hairline and crown before using the composition of the present invention. The gray hairs accounted for approximately 30% of his total hair volume, some of which had a grayish-white hue. The hair was finer and softer than his naturally black hair, and showed signs of malnutrition. The prominent location of the gray hairs on his forehead made him appear older than his actual age. Even under indoor lighting, the gray hairs were clearly visible, diminishing the overall texture of his hair. Regarding the onset of gray hairs: Mr. Zhang stated that at age 35, due to work changes and physical and mental stress, he began to notice gray hairs on his forehead. Initially, there were only a few strands, but with increasing work pressure and an irregular lifestyle, the number of gray hairs rapidly increased. Over the past decade, he experienced significant psychological stress due to the gray hair issue, lacking confidence in his image. He also tried various products claiming to turn gray hair black, but none were effective.

[0078] Treatment method: After cleaning the hair and massaging the scalp, apply 12 mL of the composition of Example 1 to the scalp and hair roots at the site of gray hair once a day. Comb the hair for 10 minutes each time. Apply the composition of Example 1 once every other day for a total of 15 days.

[0079] Calculate the gray hair blackening rate (%) = (1-the number of gray hair roots after using the composition of the present invention ÷ the number of gray hair roots before using the composition of the present invention) × 100%.

[0080] After using the composition of Example 1 for 15 days, the roots of the white hair on Mr. Zhang's forehead and most of his hair turned black. After using the composition of Example 1 for 15 days, the rate of turning white hair black reached 90%.

[0081] After using the composition of Example 1 for 30 days, the effects before and after use are shown in Table 1. Figure 3 .

[0082] Figure 3The results showed that the roots of Mr. Zhang's white hair on his forehead and most of his hair turned black, indicating that the composition of the present invention can significantly promote the blackening of white hair on the forehead.

[0083] Typical Case 4

[0084] Verification of the effect of the composition of Example 1 on the white hair on the forehead

[0085] Ms. Sun, 52 years old, had widespread gray hair before using the composition of the present invention, particularly concentrated on her forehead, the top of her head, and the sides. Statistics show that gray hair accounted for approximately 60% of her total hair. The silvery white color of the gray hair contrasted sharply with the surrounding black hair, making it visually very noticeable and affecting her appearance. Under natural light, the gray hair reflected light strongly, making her hair appear older and dull. Duration of gray hair development: Ms. Sun reported that she accidentally discovered a few gray hairs on her forehead at around the age of 40, but she didn't pay much attention to them at the time. By the age of 52, the gray hair had developed to a certain extent, and the gray hair had been present for a total of approximately 12 years. During this period, Ms. Sun tried various products on the market claiming to turn gray hair black, but none of them achieved significant results.

[0086] Treatment method: After cleaning the hair and massaging the scalp, apply 15 mL of the composition of Example 1 to the scalp and hair roots at the areas where white hair appears once a day. Comb the hair for 10 minutes each time. Apply the composition of Example 1 once every other day for a total of 30 days.

[0087] Calculate the gray hair blackening rate (%) = (1-the number of gray hair roots after using the composition of the present invention ÷ the number of gray hair roots before using the composition of the present invention) × 100%.

[0088] After using the composition of Example 1 for 30 days, the roots of the white hair on Ms. Sun's forehead and most of her hair turned black. After using the composition of Example 1 for 30 days, the rate of turning white hair black reached 90%.

[0089] After using the composition of Example 1 for 30 days, the effects before and after use are shown in Table 1. Figure 4 .

[0090] Figure 4 The results showed that the roots of Ms. Sun's forehead white hair and most of her hair turned black, indicating that the composition of the present invention can significantly promote the blackening of forehead white hair.

[0091] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A composition for promoting the darkening of forehead white hair, characterized in that: The invention comprises the following components in parts by weight: 1-6.5 parts of ginseng root, 1-44.5 parts of astragalus membranaceus root extract, 0.1-4 parts of atractylodes rhizome extract, 0.1-2.2 parts of atractylodes rhizome extract, 0.01-5.334 parts of magnolia officinalis bark extract and 0.01-2.565 parts of motherwort extract.

2. The composition according to claim 1, characterized in that The composition further comprises the following components in parts by weight: 30 to 90.75 parts of anhydrous ethanol and 10 to 97.966 parts of water.

3. A composition for promoting the darkening of forehead white hair, characterized in that: The invention is prepared from the following components in parts by weight: 1 to 6.5 parts of ginseng roots, 1 to 44.5 parts of Astragalus membranaceus root extract, 0.1 to 4 parts of Atractylodes macrocephala rhizome extract, 0.1 to 2.2 parts of Atractylodes lancea rhizome extract, 0.01 to 5.334 parts of Magnolia officinalis bark extract, 0.01 to 2.565 parts of Leonurus japonicus extract, 30 to 90.75 parts of anhydrous ethanol and 10 to 97.966 parts of water.

4. The composition according to claim 3, characterized in that The invention is prepared from the following components in parts by weight: 5 parts of ginseng roots, 5 parts of Astragalus membranaceus root extract, 4 parts of Atractylodes macrocephala rhizome extract, 2 parts of Atractylodes lancea rhizome extract, 5 parts of Magnolia officinalis bark extract, 2 parts of Leonurus japonicus extract, 58 parts of anhydrous ethanol and 19 parts of water.

5. The method for preparing the composition according to any one of claims 1 to 4, characterized in that: The following steps are involved: (1) mixing the anhydrous ethanol and water to obtain an ethanol solution; (2) Mixing the ginseng root, the Astragalus membranaceus root extract, the Atractylodes macrocephala rhizome extract, the Atractylodes lancea rhizome extract, the Magnolia officinalis bark extract, the Leonurus japonicus extract, and the ethanol solution.

6. Use of the composition according to any one of claims 1 to 4 or the composition prepared by the preparation method according to claim 5 in darkening white hair.

7. The use according to claim 7, characterized in that The white hair is white hair on the forehead.

8. Use of the composition according to any one of claims 1 to 4 or the composition prepared by the preparation method according to claim 5 in the preparation of a product for darkening white hair.

9. The use according to claim 8, characterized in that The white hair is white hair on the forehead.

10. A method for promoting the darkening of forehead white hair, characterized in that: The method comprises the following steps: applying the composition described in any one of items 1 to 4 or the composition prepared by the preparation method according to claim 5 to the scalp and hair.

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