Natural acne removing and repairing plant essential oil as well as preparation method and application thereof

Abstract

The invention relates to the technical field of plant essential oil, in particular to natural acne removing and repairing plant essential oil and a preparation method and application thereof. The natural acne removing and repairing plant essential oil is prepared from, by weight, 40-60 parts of mixed oil, 40-60 parts of lavender essential oil, 20-30 parts of tea tree essential oil, 20-30 parts of chamomile essential oil, 20-30 parts of additive liquid, 10-20 parts of grape seed oil, 6-10 parts of pomelo essential oil, 2-4 parts of solubilizer and 0.8-0.12 part of dispersing agent. According to the preparation method, mesophyll tissues in the tea leaves can be separated through enzymolysis, rough vein components in the tea leaves are removed, so that the extract is finer, the smearing comfort of essential oil is improved, the tannic acid component rich in the tea leaves is utilized, and tannic acid can inhibit growth and reproduction of bacteria in acne, so that the skin is kept in a clean state; the acne symptom is improved, and meanwhile, the recurrence rate of the acne is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of plant essential oils, and particularly to a natural anti-acne and repair plant essential oil, its preparation method and application. Background Art

[0002] Plant essential oil refers to the general name of volatile substances obtained by processing and extracting from plants. The pure natural plant essential oil has a fragrant smell, and the plant essential oil has a good inhibitory effect on facial acne, which fully meets the needs of consumers for natural products.

[0003] In the prior art, the main component of plant essential oil is a mixture of various essential oils. After being applied, due to its high oiliness, it is easy to produce a greasy and heavy discomfort, which affects the use experience of plant essential oil. Based on this, the present invention provides a natural anti-acne and repair plant essential oil, its preparation method and application. Summary of the Invention

[0004] The purpose of the present invention is to provide a natural anti-acne and repair plant essential oil, its preparation method and application. The natural anti-acne and repair plant essential oil prepared by the present invention not only has good anti-acne performance, but also has excellent use comfort, effectively improving the use effect of the natural anti-acne and repair plant essential oil.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: In the first aspect, the present invention provides a natural anti-acne and repair plant essential oil, comprising the following raw materials in parts by weight: 40-60 parts of mixed oil, 40-60 parts of lavender essential oil, 20-30 parts of tea tree essential oil, 20-30 parts of chamomile essential oil, 20-30 parts of eucalyptus globulus oil, 20-30 parts of ylang-ylang oil, 20-30 parts of additive solution, 10-20 parts of melaleuca leucadendra leaf oil, 10-20 parts of grape seed oil, 6-10 parts of pomelo fragrance essential oil, 2-4 parts of solubilizer, 0.8-0.12 parts of dispersant; The pomelo fragrance essential oil is an extract of pomelo peel, and the additive solution, pomelo fragrance essential oil and dispersant are mixed and pretreated to obtain a mixed solution; The mixed oil is a mixture of juniper berry oil, balsam of Peru resin and frankincense oil, and the mass ratio of juniper berry oil, balsam of Peru resin and frankincense oil is 1:0.1:0.1.

[0006] Further, the additive solution is prepared by the following method: Select fresh tender tea leaves as raw materials, put the tea leaves into a container, pour clear water into the container to submerge the tea leaves, soak for 20-30 min, after soaking, rinse the tea leaves repeatedly for 5-7 times, after draining the water from the tea leaves, spread the tea leaves flat in a basket and place it in a ventilated place to air dry for 6-8 h.

[0007] Further, after the tea leaves are cleaned and air-dried, the tea leaves are placed in a water bath pot, and a treatment liquid is added to the water bath pot. The mass of the treatment liquid is 1.2 to 1.4 times the mass of the tea leaves. The water bath pot is set to heat the water bath to 40 to 50 °C and keep the temperature for 30 to 40 min to obtain a reaction liquid.

[0008] Further, the reaction liquid is placed in a sealed container and left to stand for 5 to 7 d in a light-proof environment at a temperature of 28 to 30 °C. The obtained product is filtered through a gauze to remove the precipitate, and citric acid is added to the obtained liquid to adjust the pH value to 4.5 to 5.5, thus obtaining an additive liquid.

[0009] Further, the treatment liquid is a mixture of cellulase, pectinase, and deionized water, and the mass ratio of cellulase, pectinase, and deionized water is 1: (0.6 to 0.8): (3 to 4).

[0010] Further, the dispersant is lecithin.

[0011] Further, the mixed liquid is prepared by the following method: the additive liquid and pomelo essential oil are mixed and added to a water bath pot, heated to 40 to 50 °C in a water bath, kept at a temperature for 20 to 30 °C, then a dispersant is added, heated to 50 to 60 °C, and kept at a temperature for 30 to 40 °C. During the treatment process, a mixing device is used to continuously stir, and the mixing device is set at 120 to 160 r / min to obtain a mixed liquid.

[0012] Further, the solubilizer is vegetable glycerin.

[0013] Second, the present invention also provides a preparation method of a natural acne removing and repairing plant essential oil, including the following steps: S1: Weigh the mixed oil, lavender essential oil, tea tree essential oil, chamomile essential oil, and grape seed oil as required and add them to a reaction kettle for mixing and stirring. The temperature of the reaction kettle is set to 46 to 50 °C, the stirring speed is 160 to 200 r / min, and the stirring time is 6 to 10 min to obtain a base material; S2: Weigh the additive liquid, pomelo essential oil, solubilizer, and dispersant as required and add them to the base material. The temperature of the reaction kettle is set to 40 to 44 °C, the stirring speed is 100 to 120 r / min, and the stirring time is 12 to 14 min to obtain a natural acne removing and repairing plant essential oil.

[0014] Third, the present invention also provides an application of a natural acne removing and repairing plant essential oil. The natural acne removing and repairing plant essential oil is filled, disinfected, and packaged. When in use, open the cap, squeeze out 3 to 5 drops and evenly apply them on the face, and rub the applied position for 2 to 4 min.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, by adding an additive during the preparation of the natural acne-removing and skin-repairing plant essential oil, with the additive using fresh young tea leaves as the raw material, after enzymatic hydrolysis treatment with cellulase and pectinase, the enzymatic hydrolysis can separate the mesophyll tissue in the tea leaves, removing the rough vein components in the tea leaves, making the extract more delicate, improving the comfort of applying the essential oil. Utilizing the tannic acid component rich in tea leaves, tannic acid can inhibit the growth and reproduction of bacteria in acne, keeping the skin clean, improving acne symptoms, and effectively reducing the recurrence rate of acne.

[0016] 2. In the present invention, through the pre-mixing treatment of the additive, pomelo essential oil, and dispersant, during the stirring and mixing of the additive, pomelo essential oil, and dispersant, the use of lecithin can reduce the surface tension at the oil-water interface, helping the additive and plant essential oil to mix and disperse better. At the same time, lecithin can interact with the phospholipid bilayer of skin cells, promoting the uptake of skin care components and tannic acid components in the plant essential oil by cells, thereby improving the absorption efficiency and effectively enhancing the use effect of the plant essential oil.

[0017] 3. In the present invention, by adding a solubilizer during the preparation of the natural acne-removing and skin-repairing plant essential oil, utilizing the hydrophilicity of plant glycerol, it can improve the compatibility between the plant essential oil and the skin after application, open the skin's absorption channels, making the components in the plant essential oil more easily absorbed by the skin, and further enhancing the use effect of the plant essential oil.

[0018] 4. In the present invention, by adding ylang-ylang oil to the raw materials, ylang-ylang oil has the function of helping to regulate sebum secretion, reducing oil accumulation, and preventing the formation of acne. At the same time, ylang-ylang oil has a soothing effect on the mood, helping to reduce skin problems caused by stress. Melaleuca alternifolia leaf oil has antibacterial and anti-inflammatory effects, helping to treat acne and reduce skin inflammation, stimulating cell regeneration, helping to repair damaged skin, and reducing acne marks, further enhancing the use effect of the plant essential oil. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] This embodiment provides a natural anti-acne repair plant essential oil, which comprises the following raw materials in parts by weight: 40-60 parts of mixed oil, 40-60 parts of lavender essential oil, 20-30 parts of tea tree essential oil, 20-30 parts of chamomile essential oil, 20-30 parts of eucalyptus globulus leaf oil, 20-30 parts of ylang-ylang oil, 20-30 parts of additive liquid, 10-20 parts of melaleuca alternifolia leaf oil, 10-20 parts of grape seed oil, 6-10 parts of pomelo fragrance essential oil, 2-4 parts of solubilizer, and 0.8-0.12 parts of dispersant; The pomelo fragrance essential oil is an extract of pomelo peel. The additive liquid, pomelo fragrance essential oil and dispersant are mixed and pretreated to obtain a mixed liquid; The mixed oil is a mixture of juniper berry oil, balsam of Peru resin and frankincense oil, and the mass ratio of juniper berry oil, balsam of Peru resin and frankincense oil is 1:0.1:0.1.

[0021] In some embodiments, the additive liquid is prepared by the following method: Select fresh young tea leaves as raw materials, put the tea leaves into a container, pour clear water into the container to submerge the tea leaves, soak for 20-30 min, after soaking, rinse the tea leaves repeatedly for 5-7 times, after draining the water from the tea leaves, spread the tea leaves flat in a basket and place it in a ventilated place to air dry for 6-8 h.

[0022] In some embodiments, after the tea leaves are washed and air dried, the tea leaves are put into a water bath pot, and a treatment liquid is added to the water bath pot. The mass of the treatment liquid is 1.2-1.4 times the mass of the tea leaves. The water bath pot is set to heat the water bath to 40-50 °C and keep warm for reaction for 30-40 min to obtain a reaction liquid.

[0023] In some embodiments, the reaction liquid is put into a closed container and left to stand for 5-7 d in a light-proof environment at a temperature of 28-30 °C. The obtained product is filtered with a gauze to remove the precipitate, and citric acid is added to the obtained liquid substance to adjust the pH value to 4.5-5.5, thus obtaining the additive liquid.

[0024] In some embodiments, the treatment liquid is a mixture of cellulase, pectinase and deionized water, and the mass ratio of cellulase, pectinase and deionized water is 1:(0.6-0.8):(3-4).

[0025] In some embodiments, the dispersant is selected as lecithin.

[0026] In some embodiments, the mixed liquid is prepared by the following method: The additive liquid and pomelo fragrance essential oil are mixed and added to a water bath pot, heated in a water bath to 40-50 °C and kept warm for reaction at 20-30 °C, then the dispersant is added, heated to 50-60 °C and kept warm for reaction at 30-40 °C. During the treatment process, a mixing device is used to continuously stir, and the mixing device is set at 120-160 r / min to obtain the mixed liquid.

[0027] In some embodiments, the solubilizer is selected as vegetable glycerin.

[0028] In some embodiments, a method for preparing a natural acne-removing and skin-repairing plant essential oil includes the following steps: S1: Weigh the mixed oil, lavender essential oil, tea tree essential oil, chamomile essential oil, and grape seed oil as needed and add them to a reaction kettle for mixing and stirring. The set temperature of the reaction kettle is 46 - 50 °C, the stirring speed is 160 - 200 r / min, and the stirring time is 6 - 10 min to obtain a base material; S2: Weigh and add the additive solution, pomelo fragrance essential oil, solubilizer, and dispersant to the base material as needed. The set temperature of the reaction kettle is 40 - 44 °C, the stirring speed is 100 - 120 r / min, and the stirring time is 12 - 14 min to obtain the natural acne-removing and skin-repairing plant essential oil.

[0029] In some embodiments, for the application of a natural acne-removing and skin-repairing plant essential oil, the natural acne-removing and skin-repairing plant essential oil is filled, disinfected, and encapsulated. When in use, open the cap, squeeze out 3 - 5 drops and evenly apply them on the face, and rub the applied area for 2 - 4 min.

[0030] In this embodiment, by adding the additive solution in the preparation of the natural acne-removing and skin-repairing plant essential oil, with fresh tender tea leaves as the raw material of the additive solution, after the enzymatic hydrolysis treatment with cellulase and pectinase, the enzymatic hydrolysis can separate the mesophyll tissue in the tea leaves, remove the rough vein components in the tea leaves, making the extract finer, improving the comfort of applying the essential oil. Utilizing the tannic acid component rich in tea leaves, tannic acid can inhibit the growth and reproduction of bacteria in acne, keeping the skin clean. While improving acne symptoms, the recurrence rate of acne is effectively reduced; Through the pre-mixing treatment of the additive solution, pomelo fragrance essential oil, and dispersant, in the stirring and mixing of the additive solution, pomelo fragrance essential oil, and dispersant, the use of lecithin can reduce the surface tension of the oil-water interface, helping the additive solution and the plant essential oil to mix and disperse better. At the same time, lecithin can interact with the phospholipid bilayer of skin cells, promoting the uptake of the skin-care components and tannic acid components in the plant essential oil by cells, thereby improving the absorption efficiency and effectively enhancing the use effect of the plant essential oil; By adding a solubilizer in the preparation of the natural acne-removing and skin-repairing plant essential oil, utilizing the hydrophilicity of vegetable glycerin, it can improve the compatibility of the plant essential oil with the skin after application, open the skin's absorption channels, making the components in the plant essential oil easier to be absorbed by the skin, and further enhancing the use effect of the plant essential oil.

[0031] Based on the foregoing embodiments, the following multiple groups of experiments were carried out:

[0032] It should be noted that the raw materials used in the following experiments are all commercially available raw materials.

[0033] Experiment 1: It includes the following raw materials by weight: 40 parts of mixed oil, 40 parts of lavender essential oil, 20 parts of tea tree essential oil, 20 parts of chamomile essential oil, 20 parts of eucalyptus globulus leaf oil, 20 parts of ylang-ylang oil, 20 parts of additive liquid, 10 parts of melaleuca alternifolia leaf oil, 10 parts of grape seed oil, 6 parts of pomelo fragrance essential oil, 2 parts of solubilizer, and 0.8 part of dispersant; The pomelo fragrance essential oil is an extract of pomelo peel. The additive liquid, pomelo fragrance essential oil, and dispersant are mixed and pretreated to obtain a mixed liquid; The mixed oil is a mixture of juniper berry oil, balsam of Peru, and frankincense oil, and the mass ratio of juniper berry oil, balsam of Peru, and frankincense oil is 1:0.1:0.1.

[0034] The additive liquid is prepared by the following method: Select fresh tender tea leaves as raw materials. Put the tea leaves into a container, pour clear water into the container to submerge the tea leaves, soak for 20 min, after soaking, rinse the tea leaves repeatedly 5 times. After draining the water from the tea leaves, spread the tea leaves flat in a basket and place it in a ventilated place to air-dry for 6 h.

[0035] After the tea leaves are cleaned and air-dried, put the tea leaves into a water bath pot, add a treatment liquid to the water bath pot, and the mass of the treatment liquid is 1.2 times the mass of the tea leaves. Set the water bath pot to heat to 40 °C in a water bath and keep the temperature for 30 min to obtain a reaction liquid.

[0036] Put the reaction liquid into a closed container, let it stand in a light-proof environment at a temperature of 28 °C for 5 d. Filter the obtained product with a gauze to remove the precipitate, and add citric acid to the obtained liquid to adjust the pH value to 4.5, thus obtaining the additive liquid.

[0037] The treatment liquid is a mixture of cellulase, pectinase, and deionized water, and the mass ratio of cellulase, pectinase, and deionized water is 1:(0.6):(3).

[0038] The dispersant is selected as lecithin.

[0039] The mixed liquid is prepared by the following method: Mix the additive liquid and pomelo fragrance essential oil and add them to a water bath pot, heat in a water bath to 40 °C, keep the temperature for 20 °C, then add the dispersant and heat to 50 °C, keep the temperature for 30 °C. During the treatment process, continuously stir with a mixing device, and the mixing device is set at 120 r / min to obtain the mixed liquid.

[0040] The solubilizer is selected as vegetable glycerin.

[0041] A preparation method of a natural anti-acne and repair plant essential oil includes the following steps: S1: Weigh the mixed oil, lavender essential oil, tea tree essential oil, chamomile essential oil, and grape seed oil as needed and add them to a reaction kettle for mixing and stirring treatment. Set the temperature of the reaction kettle to 46 °C, the stirring speed to 160 r / min, and the stirring time to 6 min to obtain a base material; S2: Weigh and add the additive solution, pomelo essential oil, solubilizer, and dispersant as needed to the base material. Set the temperature of the reaction kettle to 40 °C, the stirring speed to 100 r / min, and the stirring time to 12 min to obtain the natural anti-acne and repair plant essential oil.

[0042] Application of a natural anti-acne and repair plant essential oil: The natural anti-acne and repair plant essential oil is filled, disinfected, and encapsulated. When in use, open the cap, squeeze out 3 drops, and evenly apply them on the face, and rub the applied area for 2 min.

[0043] Experiment 2: It includes the following raw materials in parts by weight: 50 parts of mixed oil, 50 parts of lavender essential oil, 25 parts of tea tree essential oil, 25 parts of chamomile essential oil, 25 parts of blue gum leaf oil, 25 parts of ylang-ylang oil, 25 parts of additive solution, 15 parts of melaleuca viridiflora leaf oil, 15 parts of grape seed oil, 8 parts of pomelo essential oil, 3 parts of solubilizer, and 0.1 part of dispersant; The pomelo essential oil is an extract of pomelo peel. The additive solution, pomelo essential oil, and dispersant are mixed and pretreated to obtain a mixed solution; The mixed oil is a mixture of juniper berry oil, balsam of Peru, and frankincense oil, and the mass ratio of juniper berry oil, balsam of Peru, and frankincense oil is 1:0.1:0.1.

[0044] The additive solution is prepared by the following method: Select fresh and tender tea leaves as raw materials. Put the tea leaves into a container, pour clear water into the container to submerge the tea leaves, soak for 25 min, after soaking, rinse the tea leaves repeatedly 6 times, drain the water from the tea leaves, lay the tea leaves flat in a basket, and place them in a ventilated place to air-dry for 7 h.

[0045] After the tea leaves are washed and air-dried, put the tea leaves into a water bath kettle, add a treatment solution to the water bath kettle, the mass of the treatment solution is 1.3 times the mass of the tea leaves, set the water bath kettle to heat to 45 °C in a water bath, and keep the temperature for 35 min to obtain a reaction solution.

[0046] Put the reaction solution into a closed container, let it stand in a light-proof environment at a temperature of 29 °C for 6 d, filter the obtained product with a gauze to remove the precipitate, and add citric acid to the obtained liquid to adjust the pH value to 5, thus obtaining the additive solution.

[0047] The treatment solution is a mixture of cellulase, pectinase, and deionized water, and the mass ratio of cellulase, pectinase, and deionized water is 1:(0.7):(3.5).

[0048] The dispersant is selected as lecithin.

[0049] The mixed solution is prepared by the following method: The additive solution and pomelo essential oil are mixed and added into a water bath pot, heated in the water bath to 45°C, and kept at a constant temperature for reaction at 25°C. Then, a dispersant is added, heated to 55°C, and kept at a constant temperature for reaction at 35°C. During the treatment process, a mixing device is used to continuously stir, and the mixing device is set at 140 r / min to obtain the mixed solution.

[0050] The solubilizer is selected as plant glycerol.

[0051] A preparation method of a natural acne-removing and repairing plant essential oil includes the following steps: S1: Weigh the mixed oil, lavender essential oil, tea tree essential oil, chamomile essential oil, and grape seed oil as needed and add them to a reaction kettle for mixing and stirring treatment. The temperature of the reaction kettle is set at 48°C, the stirring speed is 180 r / min, and the stirring time is 8 min to obtain the base material. S2: Add the additive solution, pomelo essential oil, solubilizer, and dispersant weighed as needed to the base material. The temperature of the reaction kettle is set at 42°C, the stirring speed is 110 r / min, and the stirring time is 13 min to obtain the natural acne-removing and repairing plant essential oil.

[0052] An application of a natural acne-removing and repairing plant essential oil: The natural acne-removing and repairing plant essential oil is filled, disinfected, and encapsulated. When in use, open the cap, squeeze out 4 drops and evenly apply them on the face, and rub the application position for 3 min.

[0053] Experiment Three: It includes the following raw materials in parts by weight: 60 parts of mixed oil, 60 parts of lavender essential oil, 30 parts of tea tree essential oil, 30 parts of chamomile essential oil, 30 parts of eucalyptus globulus leaf oil, 30 parts of ylang-ylang oil, 30 parts of additive solution, 20 parts of melaleuca viridiflora leaf oil, 20 parts of grape seed oil, 10 parts of pomelo essential oil, 4 parts of solubilizer, 0.12 part of dispersant; The pomelo essential oil is an extract of pomelo peel. The additive solution, pomelo essential oil, and dispersant are mixed and pretreated to obtain a mixed solution; The mixed oil is a mixture of juniper berry oil, balsam of Peru, and frankincense oil, and the mass ratio of juniper berry oil, balsam of Peru, and frankincense oil is 1:0.1:0.1.

[0054] The additive solution is prepared by the following method: Select fresh tender tea leaves as raw materials, put the tea leaves into a container, pour clear water into the container to submerge the tea leaves, soak for 30 min, after soaking, rinse the tea leaves repeatedly for 7 times, after draining the water from the tea leaves, spread the tea leaves flat in a basket and place them in a ventilated place for air-drying treatment for 8 h.

[0055] After the tea leaves are washed and air-dried, put the tea leaves into a water bath pot, add a treatment solution to the water bath pot, and the mass of the treatment solution is 1.4 times that of the tea leaves. Set the water bath pot to heat to 50°C in the water bath and keep at a constant temperature for reaction for 40 min to obtain a reaction solution.

[0056] The reaction solution was placed in a sealed container and left to stand for 7 days in a light-proof environment at a temperature of 30 °C. The resulting product was filtered through gauze to remove the precipitate, and citric acid was added to the resulting liquid to adjust the pH value to 5.5, thus obtaining the additive solution.

[0057] The treatment solution was a mixture of cellulase, pectinase and deionized water, and the mass ratio of cellulase, pectinase and deionized water was 1:(0.8):(4).

[0058] Lecithin was selected as the dispersant.

[0059] The mixed solution was prepared by the following method: The additive solution and pomelo essential oil were mixed and added to a water bath. The water bath was heated to 50 °C and kept at this temperature for 30 °C. Then the dispersant was added, and the temperature was heated to 60 °C and kept at this temperature for 40 °C. During the treatment process, a mixing device was used to continuously stir, and the mixing device was set at 160 r / min to obtain the mixed solution.

[0060] Vegetable glycerol was selected as the solubilizer.

[0061] A preparation method of a natural anti-acne repair plant essential oil, comprising the following steps: S1: Weigh the mixed oil, lavender essential oil, tea tree essential oil, chamomile essential oil and grape seed oil as required and add them to a reaction kettle for mixing and stirring. The temperature of the reaction kettle was set at 50 °C, the stirring speed was 200 r / min, and the stirring time was 10 min to obtain the base material; S2: Add the additive solution, pomelo essential oil, solubilizer and dispersant to the base material as required. The temperature of the reaction kettle was set at 44 °C, the stirring speed was 120 r / min, and the stirring time was 14 min to obtain the natural anti-acne repair plant essential oil.

[0062] An application of a natural anti-acne repair plant essential oil, the natural anti-acne repair plant essential oil is filled, disinfected and encapsulated. When in use, open the cap, squeeze out 5 drops and evenly apply them on the face, and rub the application position for 4 min.

[0063] Comparative example 1. The difference between this comparative example and Experimental example 1 is that: this comparative example does not contain the additive solution.

[0064] Comparative example 2. The difference between this comparative example and Experimental example 1 is that: in this comparative example, an equal amount of mixed oil was selected to replace the additive solution.

[0065] Comparative example 3. The difference between this comparative example and Experimental example 1 is that: this comparative example does not contain pomelo essential oil.

[0066] Comparative example 4. The difference between this comparative example and Experimental example 1 is that: this comparative example does not contain the dispersant.

[0067] Performance Test: The natural anti-acne and repair plant essential oils prepared in Experiment 1, Experiment 2, Experiment 3, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4 were subjected to performance tests, and the test data obtained were recorded in the following table:

[0068] In the performance test, the test method was as follows: 350 volunteers with acne were recruited. Among the 350 people, there were an equal number of men and women, and the age was 18 - 22 years old. The 350 people were evenly divided into 7 groups. The 7 groups of volunteers were respectively given the natural anti-acne and repair plant essential oils prepared in Experiment 1, Experiment 2, Experiment 3, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4, and used according to the corresponding application methods for 30 days, once in the morning and once in the evening at the acne position every day. After 30 days, the usage conditions of the volunteers were investigated. The investigation content included the acne removal status and the comfort score when applying the essential oil. The scoring standard was 1 - 5 points, where 1 point was the worst and 5 points was the best. 30 days after the first investigation was completed, the volunteers were investigated for the second time. The investigation content was whether the acne of the volunteers recurred. The recorded data of each group were integrated to obtain the average value, that is, the performance test of the natural anti-acne and repair plant essential oil was completed.

[0069] Among them, the acne removal rates of the natural anti-acne and repair plant essential oils prepared in Experiment 1, Experiment 2, Experiment 3, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4 were 91.5%, 92.6%, 89.1%, 72.3%, 73.2%, 76.0%, and 63.1% respectively; The recurrence rates of the natural anti-acne and repair plant essential oils prepared in Experiment 1, Experiment 2, Experiment 3, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4 were 12.1%, 11.4%, 14.5%, 32.9%, 31.9%, 29.7%, and 35.6% respectively; The comfort scores of the natural anti-acne and repair plant essential oils prepared in Experiment 1, Experiment 2, Experiment 3, Comparative Example 1, Comparative Example 2, Comparative Example 3, and Comparative Example 4 were 4.6 points, 4.8 points, 4.6 points, 3.5 points, 3.5 points, 3.3 points, and 3.4 points respectively.

[0070] It can be seen that the acne removal performance and the comfort score of the natural anti-acne repair plant essential oils prepared in Comparative Examples 1, 2, 3, and 4 are all lower than those in Experiments 1, 2, and 3. This shows that: by adding a liquid during the preparation of the natural anti-acne repair plant essential oil, the added liquid uses fresh young tea leaves as raw materials. After the tea leaves are enzymatically hydrolyzed by cellulase and pectinase, the enzymatic hydrolysis can separate the mesophyll tissue in the tea leaves, remove the rough vein components in the tea leaves, make the extract more delicate, improve the comfort of applying the essential oil, and utilize the rich tannic acid component in the tea leaves. Tannic acid can inhibit the growth and reproduction of bacteria in acne, keep the skin clean, improve acne symptoms, and effectively reduce the recurrence rate of acne.

[0071] By comparing and analyzing the relevant data in the table, it can be known that the natural anti-acne repair plant essential oil prepared by the present invention not only has good anti-acne performance, but also has excellent comfort in use. This shows that the natural anti-acne repair plant essential oil, its preparation method and application provided by the present invention have a broader market prospect and are more suitable for promotion.

[0072] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0073] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A natural anti-acne repair plant essential oil, characterized in that, It includes the following raw materials in parts by weight: 40 - 60 parts of mixed oil, 40 - 60 parts of lavender essential oil, 20 - 30 parts of tea tree essential oil, 20 - 30 parts of chamomile essential oil, 20 - 30 parts of eucalyptus globulus oil, 20 - 30 parts of ylang-ylang oil, 20 - 30 parts of additive solution, 10 - 20 parts of melaleuca alternifolia leaf oil, 10 - 20 parts of grape seed oil, 6 - 10 parts of pomelo fragrance essential oil, 2 - 4 parts of solubilizer, 0.8 - 0.12 parts of dispersant; The pomelo fragrance essential oil is an extract of pomelo peel. The additive solution, pomelo fragrance essential oil and dispersant are mixed and pretreated to obtain a mixed solution; The mixed oil is a mixture of juniper berry oil, balsam of Peru resin and frankincense oil, and the mass ratio of juniper berry oil, balsam of Peru resin and frankincense oil is 1:0.1:0.

1.

2. The natural anti-acne repair plant essential oil according to claim 1, characterized in that, The additive solution is prepared by the following method: Select fresh tender tea leaves as raw materials. Put the tea leaves into a container, pour clear water into the container to submerge the tea leaves, soak for 20 - 30 min, after soaking, rinse the tea leaves repeatedly for 5 - 7 times. After draining the water from the tea leaves, spread the tea leaves flat in a basket and place it in a ventilated place to air-dry for 6 - 8 h.

3. The natural anti-acne repair plant essential oil according to claim 2, wherein After the tea leaves are washed and air-dried, put the tea leaves into a water bath pot, add a treatment solution to the water bath pot. The mass of the treatment solution is 1.2 - 1.4 times the mass of the tea leaves. Set the water bath pot to heat to 40 - 50 °C and keep the temperature for 30 - 40 min to obtain a reaction solution.

4. The natural anti-acne repair plant essential oil according to claim 3, characterized in that, Put the reaction solution into a closed container, let it stand in a light-proof environment at a temperature of 28 - 30 °C for 5 - 7 d. Filter the obtained product with a gauze to remove the precipitate. Add citric acid to the obtained liquid substance and adjust the pH value to 4.5 - 5.5 to obtain the additive solution.

5. The natural anti-acne repair plant essential oil according to claim 3, wherein The treatment solution is a mixture of cellulase, pectinase and deionized water, and the mass ratio of cellulase, pectinase and deionized water is 1:(0.6 - 0.8):(3 - 4).

6. The natural anti-acne repair plant essential oil according to claim 1, wherein The dispersant is selected as lecithin.

7. The natural anti-acne repair plant essential oil according to claim 1, characterized in that, The mixed solution is prepared by the following method: Mix the additive solution and pomelo fragrance essential oil and add them to a water bath pot. Heat the water bath to 40 - 50 °C and keep the temperature for 20 - 30 °C. Then add the dispersant and heat to 50 - 60 °C and keep the temperature for 30 - 40 °C. During the treatment process, continuously stir with a mixing device. Set the mixing device to 120 - 160 r / min to obtain the mixed solution.

8. The natural anti-acne repair plant essential oil according to claim 1, characterized in that, The solubilizer is selected as vegetable glycerin.

9. A preparation method of the natural anti-acne repair plant essential oil according to any one of claims 1 to 8, characterized in that, It includes the following steps: S1: Weigh the mixed oil, lavender essential oil, tea tree essential oil, chamomile essential oil and grape seed oil as needed and add them to a reaction kettle for mixing and stirring treatment. Set the temperature of the reaction kettle to 46 - 50 °C, the stirring speed to 160 - 200 r / min, and the stirring time to 6 - 10 min to obtain a base material; S2: Weigh the additive solution, pomelo fragrance essential oil, solubilizer and dispersant as needed and add them to the base material. Set the temperature of the reaction kettle to 40 - 44 °C, the stirring speed to 100 - 120 r / min, and the stirring time to 12 - 14 min to obtain a natural acne-removing and repair plant essential oil.

10. Use of a natural anti-acne repair plant essential oil prepared by the preparation method of the natural anti-acne repair plant essential oil according to claim 9, characterized in that, The natural acne-removing and repair plant essential oil is filled, disinfected and sealed. When using, open the cap, squeeze out 3 - 5 drops and evenly apply them on the face, and rub the applied area for 2 - 4 min.

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