Soothing and acne-removing plant extraction composite extracting solution and preparation process thereof

Abstract

The invention relates to the technical field of raw materials of skin care products, and particularly discloses a soothing and acne-removing plant extraction composite extracting solution and a preparation process thereof. The preparation method of the soothing and acne-removing plant extraction composite extracting solution comprises the following steps: step 1) mixing glycyrrhiza inflate, centella asiatica, peony roots, seaweed, bergamot and water to obtain a premix; step 2), adding compound bacteria into the premix for fermentation to obtain a fermentation product; the invention discloses a soothing acne-removing plant extraction compound extracting solution and a preparation method thereof.The soothing acne-removing plant extraction compound extracting solution has the advantages that acnes are not prone to relapse, and the soothing acne-removing plant extraction compound extracting solution is prepared by the steps of (1) fermentation, (2) fermentation, (3) filtration and sterilization of a fermentation product to obtain fermentation filtrate and (4) concentration of the fermentation filtrate.

Description

Technical Field

[0001] The invention relates to the field of skin care product raw materials, and in particular to a soothing and anti-acne plant extract composite extract and a preparation process thereof. Background Art

[0002] As the pace of life accelerates, people's work and rest become more irregular. Irregular work and rest can lead to symptoms such as endocrine disorders, which in turn manifests itself on the skin, causing an imbalance in the water and oil balance of the skin, causing sebum to accumulate in the pores, leading to bacterial growth and the formation of acne. The formation of acne can seriously affect the beauty of the skin. Therefore, acne-removing products are very popular among consumers.

[0003] However, existing acne removal products are mainly composed of chemical ingredients. Through chemical ingredients, targeted antibacterial and anti-inflammatory effects are used to accelerate the repair of acne. However, since chemical ingredients can only play an exogenous antibacterial and anti-inflammatory role, they cannot fundamentally improve the skin. As a result, this acne removal method based on chemical ingredients is very likely to cause acne to recur after the acne removal product is discontinued, causing consumers to need to use acne removal products frequently. Frequent use of acne removal products may cause skin sensitivity or other side effects.

[0004] As consumers' pursuit of a natural and healthy lifestyle increases, plant extracts are favored because of their relatively mild nature and have become a new trend in the research and development of skin care products. Many of the existing plant extracts have antibacterial and anti-inflammatory properties, but the existing technology mainly utilizes certain antibacterial and anti-inflammatory ingredients in plant extracts to achieve the antibacterial and anti-inflammatory effects, and does not give much consideration to the conditioning effects of various plant active ingredients on the skin itself. As a result, although the existing acne removal products are made milder by adding plant extracts and are less likely to cause skin sensitivity and side effects after long-term use, they fail to repair the skin well. Although they have the effect of removing acne, acne is still prone to recurrence after acne removal, and the acne problem continues to plague consumers. Therefore, there is still room for improvement. Summary of the invention

[0005] In order to prevent acne from recurring, the present application provides a soothing and anti-acne plant extract composite extract and a preparation process thereof.

[0006] In the first aspect, the present application provides a method for preparing a soothing and anti-acne plant extract composite extract, using the following technical solution: A method for preparing a soothing and anti-acne plant extract composite extract comprises the following steps: Step 1), mixing Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, bergamot and water to obtain a premix; Step 2), adding composite bacteria to the premix for fermentation to obtain a fermentation product; Step 3), filtering and sterilizing the fermentation product to obtain a fermentation filtrate; Step 4), concentrating the fermentation filtrate to obtain a soothing and anti-acne plant extract composite extract; The composite bacteria is a combination of Paenibacillus pustules, Saccharomyces cerevisiae and Bacillus clausii.

[0007] By adopting the above technical scheme, after compounding licorice, centella asiatica, peony root, seaweed and bergamot and then fermenting with a composite bacteria composed of Bacillus pteronyssinus, yeast Jending Seberlindner and Bacillus Clausii, the active ingredients in various plants and the fermentation products of various bacteria cooperate with each other to play a special synergistic role, which can have a significant antibacterial and anti-inflammatory effect, and can repair the skin, balance the water and oil of the skin, and sebum is not easy to accumulate in the pores. After the product is discontinued, the skin can maintain a healthy state for a long time, and it is not easy to cause acne again due to sebum accumulation. After the product is discontinued, acne is not easy to recur for a long time, and there is no need to use acne products frequently, which well meets the needs of consumers.

[0008] Preferably, in the step 1), the mass ratio of Glycyrrhiza inflata, Centella asiatica, Paeonia suffruticosa, Seaweed and Bergamot is 7-8:4-5:1-2:3-4:2-3.

[0009] By adopting the above technical scheme, by specifically selecting the mass ratio of Glycyrrhiza inflata, Centella asiatica, Peony root, seaweed, and bergamot, the active ingredients in each plant and the fermentation products of each fungus are combined in a specific ratio, which can exert a better synergistic effect, thereby making the skin conditioning effect better, the effect is faster, and the effect of quickly relieving acne can be better achieved.

[0010] Preferably, in the step 1), the mass ratio of Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, bergamot and water is 7-8:4-5:1-2:3-4:2-3:85-132.

[0011] By adopting the above technical scheme and specifically selecting the mass ratio of Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, bergamot and water, Glycyrrhiza inflata, Centella asiatica, peony root, seaweed and bergamot can fully absorb water, so that the extraction effect is better, and at the same time, the energy waste during subsequent concentration due to excessive water is avoided, which has higher economic value.

[0012] Preferably, in the composite bacteria, the mass ratio of Paenibacillus pustules, Saccharomyces jedinstii and Bacillus clausii is 0.02-0.03:0.03-0.04:0.01-0.02.

[0013] By adopting the above technical scheme and specifically selecting the mass ratio of Paenibacillus pustules, Saccharomyces jedinii and Bacillus clausii, the bacteria can cooperate with each other better and have higher activity. At the same time, the fermentation products can be better matched with the active ingredients in a specific ratio, and the antibacterial and soothing effects can be better exerted.

[0014] Preferably, in step 2), the fermentation temperature is 30-35° C. and the fermentation time is 7-8 days.

[0015] By adopting the above technical solution and specifically selecting the fermentation temperature, the activity of the composite bacteria is higher and the fermentation efficiency is higher. By controlling the fermentation time, the fermentation degree is just right, so that the effect of the active ingredients and the fermentation products is better.

[0016] Preferably, in step 2), the mass ratio of the premix to the composite bacteria is: 102-154: 0.06-0.09.

[0017] By adopting the above technical scheme, by specifically selecting the mass ratio of the premix and the composite bacteria, and by coordinating the fermentation temperature and the fermentation time, the degree of fermentation can be better controlled so that the degree of fermentation is just right, and the active ingredients in the extract and the fermentation products are combined in a better and more appropriate ratio, thereby exerting a better soothing and acne-removing effect.

[0018] Preferably, in the step 1), the Glycyrrhiza inflata, Centella asiatica, Paeonia suffruticosa, Seaweed and Bergamot are first chopped into particles with a particle size of ≤2 mm and then mixed with water.

[0019] By adopting the above technical solution, each plant is easier to extract, the extraction efficiency is higher, and the product quality is better.

[0020] Preferably, in the step 4), the concentration temperature is 50-55° C., and the mass ratio of the acne-relieving plant extract to the premix is ​​1:5-6.

[0021] By adopting the above technical solution and specifically selecting the concentration temperature, the damage of high temperature to the active ingredients can be reduced, thereby improving the product quality.

[0022] In the second aspect, the present application provides a soothing and anti-acne plant extract compound extract, which adopts the following technical solution: A soothing and anti-acne plant extract composite extract is prepared by the above-mentioned soothing and anti-acne plant extract composite extract preparation method.

[0023] By adopting the above technical solution, the prepared acne-removing plant extract composite extract can quickly soothe and remove acne, and can regulate the skin to restore the skin to health. After stopping the use of the product, acne is not easy to recur.

[0024] In summary, this application has the following beneficial effects: 1. Since the present application is prepared by compounding licorice, centella asiatica, peony root, seaweed and bergamot and then fermenting with a composite bacteria composed of Bacillus pustules, yeast Jending Seberlindner and Bacillus Clausii, the active ingredients in various plants cooperate with the fermentation products of various bacteria to play a special synergistic role, which can have significant antibacterial and anti-inflammatory effects, and can repair the skin, balance the water and oil of the skin, and prevent sebum from accumulating in the pores. After the product is discontinued, the skin can maintain a healthy state for a long time, and is not prone to acne due to sebum accumulation. After the product is discontinued, acne is not prone to recurrence for a long time, and there is no need to frequently use acne-removing products, which well meets the needs of consumers.

[0025] 2. In the present application, it is preferred to specifically select the mass ratio of Glycyrrhiza inflata, Centella asiatica, Peony root, Seaweed, and Bergamot so that the active ingredients in each plant and the fermentation products of each fungus are matched in a specific ratio, which can exert a better synergistic effect, thereby making the skin conditioning effect better, the effect is faster, and the effect of quickly relieving acne is better achieved.

[0026] 3. In the present application, it is preferred to specifically select the mass ratio of Bacillus pustules, Saccharomyces jadiniiberrindnerii, and Bacillus clausii so that the bacteria cooperate with each other better and have higher activity. At the same time, the fermentation product is better matched with the active ingredient in a specific ratio to exert a better antibacterial and soothing effect. DETAILED DESCRIPTION

[0027] The present application is further described in detail below with reference to the embodiments.

[0028] Example 1 A method for preparing a soothing and anti-acne plant extract composite extract, characterized in that it comprises the following steps: Step 1), chop Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, and bergamot into particles with a particle size of ≤2 mm, then put 7kg of Glycyrrhiza inflata particles, 4kg of Centella asiatica particles, 1kg of peony root particles, 3kg of seaweed particles, 2kg of bergamot particles, and 85kg of water into a fermentation tank, rotate at 15r / min, stir for 2h, mix evenly, and obtain a premix.

[0029] Step 2), add 0.02kg of Paenibacillus dust, 0.03kg of Yeast Jadinseberlindner, and 0.01kg of Bacillus Clausii to the premix, seal the fermenter, stir continuously at a speed of 5r / min, and continuously inject sterile air at a rate of 100% of the fermenter volume / 24h, keep a constant temperature of 30°C, and ferment for 7 days to obtain a fermentation product.

[0030] Step 3), filtering the fermentation product through an 80-mesh filter cloth to obtain a primary filtrate, and filtering the primary filtrate through a 0.22 μm filter membrane for sterilization to obtain a fermentation filtrate.

[0031] Step 4), the fermentation filtrate is concentrated by rotary evaporation, the concentration pressure is 0.01 MPa, the concentration temperature is 50°C, and the soothing and anti-acne plant extract composite extract is obtained, and the mass ratio of the concentrated soothing and anti-acne plant extract composite extract to the premix in step 1) is 1:5.

[0032] Glycyrrhiza uralensis inflata comes from commercially available, sun-dried products.

[0033] Centella asiatica comes from commercially available, sun-dried products.

[0034] Peony root comes from commercially available, sun-dried products.

[0035] The seaweed comes from commercially available, sun-dried products.

[0036] Bergamot comes from commercially available, sun-dried products.

[0037] Paenibacillus pneumococcus was purchased from Beijing Bio-Bowei Biotechnology Co., Ltd. with the number: Bio-67352.

[0038] Yeast of Jardine Seiberlin was purchased from Shanghai Collection Biotechnology Center with the number: SHBCC D13702.

[0039] Bacillus clausii was purchased from Shanghai Biotechnology Collection Center with the number: SHBCC D24598.

[0040] Example 2 A method for preparing a soothing and anti-acne plant extract composite extract, characterized in that it comprises the following steps: Step 1), chop the Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, and bergamot into particles with a particle size of ≤2 mm, and then put 7.5 kg of Glycyrrhiza inflata particles, 4.5 kg of Centella asiatica particles, 1.5 kg of peony root particles, 3.5 kg of seaweed particles, 2.5 kg of bergamot particles, and 108.5 kg of water into a fermentation tank, rotate at 15 r / min, stir for 2 hours, mix evenly, and obtain a premix.

[0041] Step 2), add 0.025kg of Paenibacillus dust, 0.035kg of Yeast Jadinseberlindner, and 0.015kg of Bacillus clausii to the premix, seal the fermenter, stir continuously at a speed of 5r / min, and continuously inject sterile air at a rate of 100% of the fermenter volume / 24h, keep a constant temperature of 32.5°C, and ferment for 7.5 days to obtain a fermentation product.

[0042] Step 3), filtering the fermentation product through an 80-mesh filter cloth to obtain a primary filtrate, and filtering the primary filtrate through a 0.22 μm filter membrane for sterilization to obtain a fermentation filtrate.

[0043] Step 4), the fermentation filtrate is concentrated by rotary evaporation, the concentration pressure is 0.01 MPa, the concentration temperature is 52.5°C, and the soothing and anti-acne plant extract composite extract is obtained. The mass ratio of the concentrated soothing and anti-acne plant extract composite extract to the premix in step 1) is 1:5.5.

[0044] Glycyrrhiza uralensis inflata comes from commercially available, sun-dried products.

[0045] Centella asiatica comes from commercially available, sun-dried products.

[0046] Peony root comes from commercially available, sun-dried products.

[0047] The seaweed comes from commercially available, sun-dried products.

[0048] Bergamot comes from commercially available, sun-dried products.

[0049] Paenibacillus pneumococcus was purchased from Beijing Bio-Bowei Biotechnology Co., Ltd. with the number: Bio-67352.

[0050] Yeast of Jardine Seiberlin was purchased from Shanghai Collection Biotechnology Center with the number: SHBCC D13702.

[0051] Bacillus clausii was purchased from Shanghai Biotechnology Collection Center with the number: SHBCC D24598.

[0052] Example 3 A method for preparing a soothing and anti-acne plant extract composite extract, characterized in that it comprises the following steps: Step 1), chop the Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, and bergamot into particles with a particle size of ≤2 mm, then put 8kg of Glycyrrhiza inflata particles, 5kg of Centella asiatica particles, 2kg of peony root particles, 4kg of seaweed particles, 3kg of bergamot particles, and 132kg of water into a fermentation tank, rotate at 15r / min, stir for 2h, mix evenly, and obtain a premix.

[0053] Step 2), add 0.03kg of Paenibacillus dust, 0.04kg of Yeast Jadinseberlindner, and 0.02kg of Bacillus Clausii to the premix, seal the fermenter, stir continuously at a speed of 5r / min, and continuously inject sterile air at a rate of 100% of the fermenter volume / 24h, keep a constant temperature of 35°C, and ferment for 8 days to obtain a fermentation product.

[0054] Step 3), filtering the fermentation product through an 80-mesh filter cloth to obtain a primary filtrate, and filtering the primary filtrate through a 0.22 μm filter membrane for sterilization to obtain a fermentation filtrate.

[0055] Step 4), the fermentation filtrate is concentrated by rotary evaporation, the concentration pressure is 0.01 MPa, the concentration temperature is 55°C, and the soothing and anti-acne plant extract composite extract is obtained. The mass ratio of the concentrated soothing and anti-acne plant extract composite extract to the premix in step 1) is 1:6.

[0056] Glycyrrhiza uralensis inflata comes from commercially available, sun-dried products.

[0057] Centella asiatica comes from commercially available, sun-dried products.

[0058] Peony root comes from commercially available, sun-dried products.

[0059] The seaweed comes from commercially available, sun-dried products.

[0060] Bergamot comes from commercially available, sun-dried products.

[0061] Paenibacillus pneumococcus was purchased from Beijing Bio-Bowei Biotechnology Co., Ltd. with the number: Bio-67352.

[0062] Yeast of Jardine Seiberlin was purchased from Shanghai Collection Biotechnology Center with the number: SHBCC D13702.

[0063] Bacillus clausii was purchased from Shanghai Biotechnology Collection Center with the number: SHBCC D24598.

[0064] Comparative Example 1 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Use purslane to replace glycyrrhiza uralensis inflata in an equal amount.

[0065] Purslane comes from commercially available, sun-dried products.

[0066] Comparative Example 2 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Replace Centella asiatica with an equal amount of chamomile.

[0067] Chamomile comes from commercially available, sun-dried products.

[0068] Comparative Example 3 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Replace the peony root with an equal amount of lavender.

[0069] Lavender comes from commercially available, sun-dried products.

[0070] Comparative Example 4 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Replace the seaweed with an equal amount of marigolds.

[0071] Calendula comes from commercially available, sun-dried products.

[0072] Comparative Example 5 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Replace the bergamot with an equal amount of rosemary.

[0073] Rosemary comes from commercially available, sun-dried products.

[0074] Comparative Example 6 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Replace the inflated fruit liquorice with an equal amount of purslane, replace the centella asiatica with an equal amount of chamomile, replace the peony root with an equal amount of lavender, replace the seaweed with an equal amount of calendula, and replace the bergamot with an equal amount of rosemary.

[0075] Purslane comes from commercially available, sun-dried products.

[0076] Chamomile comes from commercially available, sun-dried products.

[0077] Lavender comes from commercially available, sun-dried products.

[0078] Calendula comes from commercially available, sun-dried products.

[0079] Rosemary comes from commercially available, sun-dried products.

[0080] Comparative Example 7 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Bacillus albopictus was used to replace Paenibacillus dust in equal amounts.

[0081] Bacillus subtilis was purchased from Beijing Bio-Bowei Biotechnology Co., Ltd. with the number: Bio-67366.

[0082] Comparative Example 8 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Kluyveromyces marxianus was used to replace Saccharomyces jadinseberlindnerii in equal amounts.

[0083] Kluyveromyces marxianus was purchased from Beijing Biobio Biotech Co., Ltd. with the number: Bio-67350.

[0084] Comparative Example 9 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Bacillus megaterium was used to replace Bacillus clausii in equal amounts.

[0085] Bacillus megaterium was purchased from Beijing Biobio Biotech Co., Ltd. with the number: Bio-67364.

[0086] Comparative Example 10 A method for preparing a soothing and anti-acne plant extract composite extract, compared with Example 2, the only difference is: Bacillus australis was used in equal amounts to replace Paenibacillus fusus, Kluyveromyces marxianus was used in equal amounts to replace Saccharomyces jadinseberlindnerii, and Bacillus megaterium was used in equal amounts to replace Bacillus clausii.

[0087] Bacillus subtilis was purchased from Beijing Bio-Bowei Biotechnology Co., Ltd. with the number: Bio-67366.

[0088] Kluyveromyces marxianus was purchased from Beijing Biobio Biotech Co., Ltd. with the number: Bio-67350.

[0089] Bacillus megaterium was purchased from Beijing Biobio Biotech Co., Ltd. with the number: Bio-67364.

[0090] Experiment 1 A number of volunteers were recruited and divided into groups to use the test samples prepared from the soothing and anti-acne plant extract composite extracts of the embodiments and comparative examples. During the experiment, only the test samples were used, and no other skin care products were used.

[0091] Each group consisted of 30 people, all female, aged 20-30 years old.

[0092] The volunteers used the test samples once in the morning and once in the evening every day. Before use, they cleansed their face with clean water and a disposable face washcloth. After cleansing, they took 3 ml of the test sample and spread it evenly on the face, gently massaged for 3 minutes, and used it continuously for 30 days.

[0093] Before using the test sample, the facial image analysis system VISIA7 and the image analysis software Image-Pro Plus7.0 IPP were used to measure the skin lesion area ratio. The data were averaged.

[0094] The test samples were used for 3, 7, 15, and 30 days, and the percentage of skin lesion area was measured again. The data were averaged.

[0095] Before using the test sample, the skin hemoglobin EI value was tested using the melanin and hemoglobin detection probe Mexameter MX 18. The data were averaged.

[0096] The skin hemoglobin EI value was measured again after using the test sample for 3 days, 7 days, 15 days, and 30 days, and the data were averaged.

[0097] Test environment: temperature: 20-22℃, humidity: 40-60%.

[0098] Preparation of test samples: Take 10g of the soothing and anti-acne plant extract compound extract and 90g of deionized water, mix well to obtain the test sample.

[0099] After using the test samples for 30 days, stop using the test samples and do not use other skin care products. After 30 days, make a follow-up visit and record the number of cases (people) of acne recurrence in each group of 30 people.

[0100] The specific test data of Experiment 1 are shown in Tables 1-3.

[0101] Table 1. Skin lesion area ratio Table 2. Skin hemoglobin EI values Table 3. Cases of acne recurrence Number of cases of acne recurrence after 30 days of discontinuation Example 1 2 Example 2 1 Example 3 4 Comparative Example 1 18 Comparative Example 2 16 Comparative Example 3 20 Comparative Example 4 17 Comparative Example 5 15 Comparative Example 6 23 Comparative Example 7 8 Comparative Example 8 11 Comparative Example 9 7 Comparative Example 10 13 According to the data comparison of each embodiment and comparative example in Table 1-2, it can be obtained that the percentage of skin lesion area and the rate of decrease of skin hemoglobin EI value in each embodiment are significantly faster than those in each comparative example. It can be seen that after the compounding of Glycyrrhiza inflata, Centella asiatica, peony root, seaweed and bergamot is fermented with Bacillus dust, Yeast Jadinseberlindner and Bacillus clausii, the active ingredients in the obtained extracts and the fermentation products can play a good synergistic effect, and the effects of acne removal and soothing are better and the effects are more rapid. However, the comparative examples destroy the compound fermentation system of Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, bergamot, Bacillus dust, Yeast Jadinseberlindner and Bacillus clausii. Although the added raw materials have the effects of acne removal and soothing, they cannot play a special synergistic effect. Although they can achieve complete acne removal and soothing effects after 30 days of use, the effects are slow.

[0102] According to the data comparison of each embodiment and the comparative example in Table 3, the number of acne recurrence cases in each embodiment is significantly less than that in each comparative example. It can be seen that each embodiment not only takes effect faster, but also has a good effect of conditioning and repairing the skin. After the test samples prepared in each embodiment are used for a period of time, even if they are stopped for a long time, due to the healthy skin, sebum is not easy to accumulate in the pores, making acne less likely to recur. Consumers do not need to use acne removal products frequently, which can well meet the needs of consumers.

[0103] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A method for preparing a soothing and anti-acne plant extract composite extract, characterized in that: The following steps are involved: Step 1), mixing Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, bergamot and water to obtain a premix; Step 2), adding composite bacteria to the premix for fermentation to obtain a fermentation product; Step 3), filtering and sterilizing the fermentation product to obtain a fermentation filtrate; Step 4), concentrating the fermentation filtrate to obtain a soothing and anti-acne plant extract composite extract; The composite bacteria is a combination of Paenibacillus pustules, Saccharomyces cerevisiae and Bacillus clausii.

2. The method for preparing a soothing and anti-acne plant extract composite extract according to claim 1, characterized in that: In the step 1), the mass ratio of Glycyrrhiza inflata, Centella asiatica, Paeonia suffruticosa, Seaweed and Bergamot is 7-8:4-5:1-2:3-4:2-3.

3. The method for preparing a soothing and anti-acne plant extract composite extract according to claim 2, characterized in that: In the step 1), the mass ratio of Glycyrrhiza inflata, Centella asiatica, peony root, seaweed, bergamot and water is 7-8:4-5:1-2:3-4:2-3:85-132.

4. The method for preparing a soothing and anti-acne plant extract composite extract according to claim 3, characterized in that: In the composite bacteria, the mass ratio of Paenibacillus pustules, Saccharomyces jedinseberlindnerii and Bacillus clausii is 0.02-0.03:0.03-0.04:0.01-0.

02.

5. The method for preparing a soothing and anti-acne plant extract composite extract according to claim 4, characterized in that: In the step 2), the fermentation temperature is 30-35° C. and the fermentation time is 7-8 days.

6. The method for preparing the acne-relieving plant extract composite extract according to claim 5, characterized in that: In the step 2), the mass ratio of the premix to the composite bacteria is: 102-154: 0.06-0.

09.

7. The method for preparing the acne-relieving plant extract composite extract according to claim 1, characterized in that: In the step 1), the Glycyrrhiza inflata, Centella asiatica, Peony root, Seaweed and Bergamot are first chopped into particles with a particle size of ≤2 mm and then mixed with water.

8. The method for preparing the acne-relieving plant extract composite extract according to claim 1, characterized in that: In the step 4), the concentration temperature is 50-55° C., and the concentration is performed until the mass ratio of the acne-relieving plant extract to the premix is ​​1:5-6.

9. A soothing and anti-acne plant extract composite extract, characterized in that: The invention is prepared by the preparation method of the acne-relieving and acne-removing plant extract composite extract according to any one of claims 1 to 8.

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