Scalp deep detoxification hair care essence based on natural plant composite extract and preparation method thereof

Abstract

The invention discloses a scalp deep detoxification hair care essence based on a natural plant composite extract and a preparation method thereof, and belongs to the technical field of daily chemical hair care. The hair care essence comprises the following components in percentage by weight: 5-10% of a chamomile extract, 2-5% of activated carbon powder, 1-3% of tea tree essential oil, 2-6% of a ceramide compound, 0.5-2% of polyglutamic acid, 0.3-0.5% of an emulsifier and the balance of a water-soluble matrix. The innovation of the invention lies in that the active carbon can efficiently adsorb scalp metabolic wastes and residues, the chamomile extract has soothing and repairing functions, the ceramide compound enhances scalp barrier and prevents secondary invasion of external pollution, and the tea tree essential oil has a natural bacteriostatic effect and synergistically reduces inflammatory response. After being used, the scalp deep detoxification hair care essence can effectively remove scalp toxins, relieve sensitivity and strengthen a barrier, and has good use safety and efficacy performance.

Description

Technical Field

[0001] This invention relates to the field of daily chemical products technology, and more specifically, to a deep scalp detoxifying and hair care essence based on natural plant compound extracts and its preparation method. Background Technology

[0002] With increasing environmental pollution, particulate matter, heavy metals, and harmful chemicals accumulate on the scalp, causing problems such as clogged hair follicles, inflammation, and itching. At the same time, frequent use of styling products and hair dyes / perms exacerbates the buildup of toxins on the scalp. Therefore, "scalp detoxification" has become a new focus for modern consumers. However, existing detoxifying hair care products generally have the following problems:

[0003] (1) Single ingredients and limited efficacy: Most products focus on cleansing and neglect soothing and barrier repair after detoxification.

[0004] (2) High irritation and poor safety: Some products use strong surfactants or alcohol solvents, which can easily cause scalp sensitivity or redness.

[0005] (3) Poor synergy of ingredients: The linkage mechanism of detoxification, repair and antibacterial was not achieved, and the effect was unstable.

[0006] Therefore, there is an urgent need to develop a new type of hair essence that combines deep adsorption and detoxification, soothing and repair, barrier enhancement and antibacterial protection. Summary of the Invention

[0007] The purpose of this invention is to provide a deep scalp detoxifying hair care essence based on natural plant compound extracts and its preparation method, so as to solve the problems of incomplete detoxification, high irritation and poor repair ability of existing hair care products.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A deep-detoxifying scalp and hair care essence based on a complex of natural plant extracts, comprising the following components by weight percentage:

[0010] Chamomile extract: 5-10%;

[0011] Activated carbon powder: 2-5%;

[0012] Tea tree oil: 1-3%;

[0013] Ceramide complex: 2-6%;

[0014] Polyglutamic acid: 0.5-2%;

[0015] Emulsifier: 0.3-0.5%;

[0016] Water-soluble matrix: Add to 100%.

[0017] This invention first uses activated charcoal powder to achieve efficient physical adsorption of scalp toxins, oil, and pollutant particles; then, it uses chamomile extract rich in flavonoids to alleviate inflammation and irritation during the detoxification process; next, it adds a ceramide complex to rebuild the scalp lipid barrier and improve the skin's self-protection ability; furthermore, it utilizes the natural antibacterial effects of tea tree oil to inhibit the growth of pathogenic bacteria and prevent recurring inflammation; finally, it supplements with polyglutamic acid to provide moisturizing protection, thus constructing a closed-loop system of "detoxification-repair-protection".

[0018] Preferably, the chamomile extract is an ethanol-water extract containing not less than 1.0% total flavonoids.

[0019] Preferably, the ceramide complex comprises a mixture of ceramide NP, ceramide EOP, and cholesterol.

[0020] Preferably, the water-soluble matrix comprises glycerol, butanediol, and water.

[0021] A method for preparing a deep-detoxifying hair care essence for the scalp based on a natural plant compound extract includes the following steps: weighing a portion of the aqueous phase matrix and heating it, then sequentially adding polyglutamic acid and a ceramide complex and stirring to disperse them; dispersing activated charcoal powder and the remaining preheated water phase matrix in a high-speed shear disperser and then pouring it into a main pot for continued stirring; adding tea tree oil dropwise at an appropriate temperature, using an emulsifier to assist emulsification and shearing to form a stable water-in-oil microemulsion; adding chamomile extract and stirring slowly at room temperature; adjusting the pH of the system, filtering it through a sterile filter membrane for sterilization, and then dispensing it into light-proof containers for sealed storage.

[0022] Preferably, the activated carbon powder is pretreated to be ultrafine carbon powder with a particle size ≤20μm to improve adsorption performance.

[0023] Preferably, the pH value is adjusted to 5.0-5.8 after emulsification to adapt to the slightly acidic environment of the scalp.

[0024] Preferably, the temperature is controlled to be no higher than 45°C throughout the preparation process in order to maintain the stability of the plant active ingredients.

[0025] Compared with the prior art, the present invention has the following significant advantages:

[0026] (1) Multi-effect synergy: For the first time, the system integrates the four mechanisms of "adsorption and detoxification - soothing and repair - barrier reconstruction - natural antibacterial".

[0027] (2) Natural ingredients and high safety: It uses plant extracts and skin barrier friendly ingredients, and is free of alcohol and strong irritants.

[0028] (3) Barrier strengthening: Through the combination of ceramide and polyglutamic acid, the scalp barrier function is effectively improved and environmental stress is relieved.

[0029] (4) Thorough experimental verification: The efficacy is systematically verified through indicators such as scalp sebum content, TEWL, erythema index, and total bacterial count. Detailed Implementation

[0030] The technical solution of the present invention will be further described below with reference to the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Unless otherwise specified, the methods or operations used in the embodiments are conventional methods or operations in the art.

[0031] This application provides a general and / or specific description of the materials and experimental methods used in the experiments. In the following examples, unless otherwise specified, % represents wt%, i.e., weight percentage. Reagents or instruments used, unless otherwise specified, are all commercially available conventional reagent products.

[0032] The raw materials of this invention are described below:

[0033] Chamomile extract: obtained by ethanol-water co-extraction, rich in total flavonoids ≥1.2%, derived from medicinal chamomile dried flowers from Germany.

[0034] Activated carbon powder: particle size ≤20μm, BET specific surface area >900m² 2 / g.

[0035] Tea tree essential oil: obtained by steam distillation, the main components are terpinene-4-ol and 1-8 eucalyptol.

[0036] Ceramide complex: contains ceramide NP, ceramide EOP, and cholesterol and fatty acids in a ratio of 3:1:1:0.5.

[0037] Polyglutamic acid: a water-soluble high-molecular-weight moisturizer with a molecular weight of approximately 800 kDa.

[0038] Emulsifier: Polysorbate-80.

[0039] Water-soluble matrix: It is made by mixing pure water, glycerin and butylene glycol in a weight ratio of 60%:25%:15%.

[0040] Example 1

[0041] A method for preparing a deep-detoxifying scalp hair care essence based on natural plant compound extracts is as follows: Weigh a portion of the aqueous phase matrix (40%) and heat it to approximately 45°C in a clean stainless steel emulsifying pot. Slowly add polyglutamic acid (1.0%) and a ceramide complex (4.0%) sequentially, and disperse evenly for approximately 15 minutes under magnetic stirring to promote complete dissolution and mixing. Separately, take activated charcoal powder (3.0%) and slowly add the remaining portion of the preheated aqueous phase matrix (41.6%) to a high-speed shear disperser, dispersing at 1000 rpm for 10 minutes. To ensure even distribution, slowly pour the mixture into the mixing bowl and continue stirring. Then, slowly add tea tree oil (2.0%) at 35°C, using polysorbate-80 (0.4%) to assist emulsification, and increase the speed to 1500 rpm for 10 minutes to form a stable water-in-oil microemulsion. Subsequently, add chamomile extract (8.0%) and slowly stir at room temperature for 10 minutes to avoid heat damage to the active ingredients. Finally, adjust the pH to 5.5±0.2, filter through a 0.22μm sterile filter membrane for sterilization, dispense into light-proof pump bottles, and seal for storage.

[0042] Example 2

[0043] A method for preparing a deep-detoxifying scalp hair care essence based on natural plant compound extracts is as follows: Weigh a portion of the aqueous phase matrix (40%) and heat it to approximately 45°C in a clean stainless steel emulsifying pot. Slowly add polyglutamic acid (1.5%) and a ceramide complex (5.0%) sequentially, and disperse evenly for approximately 15 minutes under magnetic stirring to promote complete dissolution and mixing. Separately, take activated charcoal powder (4.0%) and slowly add the remaining portion of the preheated aqueous phase matrix (38.2%) to a high-speed shear disperser, dispersing at 1000 rpm for 10 minutes. To ensure even distribution, slowly pour the mixture into the mixing bowl and continue stirring. Then, slowly add tea tree oil (2.0%) at 35°C, using polysorbate-80 (0.3%) to assist emulsification, and increase the speed to 1500 rpm for 10 minutes to form a stable water-in-oil microemulsion. Subsequently, add chamomile extract (9.0%) and slowly stir at room temperature for 10 minutes to avoid heat damage to the active ingredients. Finally, adjust the pH to 5.5±0.2, filter through a 0.22μm sterile filter membrane for sterilization, dispense into light-proof pump bottles, and seal for storage.

[0044] Example 3

[0045] A method for preparing a deep-detoxifying scalp hair care essence based on natural plant compound extracts is as follows: Weigh a portion of the aqueous phase matrix (40%) and heat it to approximately 45°C in a clean stainless steel emulsifying pot. Slowly add polyglutamic acid (1.0%) and ceramide complex (3.0%) sequentially, and disperse evenly for approximately 15 minutes under magnetic stirring to promote complete dissolution and mixing. Separately, take activated charcoal powder (2.0%) and slowly add the remaining portion of the preheated aqueous phase matrix (45%) to a high-speed shear disperser, and disperse at 1000 rpm for 10 minutes. To ensure even distribution, slowly pour the mixture into the mixing bowl and continue stirring. Then, slowly add tea tree oil (1.5%) at 35°C, using polysorbate-80 (0.5%) to assist emulsification, and increase the speed to 1500 rpm to continue shearing for 10 minutes to form a stable water-in-oil microemulsion. Subsequently, add chamomile extract (7.0%) and slowly stir at room temperature for 10 minutes to avoid heat damage to the active ingredients. Finally, adjust the pH to 5.5±0.2, filter through a 0.22μm sterile filter membrane for sterilization, dispense into light-proof pump bottles, and seal for storage.

[0046] Example 4

[0047] A method for preparing a deep-detoxifying scalp hair care essence based on natural plant compound extracts is as follows: Weigh a portion of the aqueous phase matrix (40%) and heat it to approximately 45°C in a clean stainless steel emulsifying pot. Slowly add polyglutamic acid (0.8%) and a ceramide complex (6.0%) sequentially, and disperse evenly for approximately 15 minutes under magnetic stirring to promote complete dissolution and mixing. Separately, take activated charcoal powder (3.0%) and slowly add the remaining portion of the preheated aqueous phase matrix (41.2%) to a high-speed shear disperser, dispersing at 1000 rpm for 10 minutes. To ensure even distribution, slowly pour the mixture into the mixing bowl and continue stirring. Then, slowly add tea tree oil (2.5%) at 35°C, using polysorbate-80 (0.5%) to assist emulsification, and increase the speed to 1500 rpm for 10 minutes to form a stable water-in-oil microemulsion. Subsequently, add chamomile extract (6.0%) and slowly stir at room temperature for 10 minutes to avoid heat damage to the active ingredients. Finally, adjust the pH to 5.5±0.2, filter through a 0.22μm sterile filter membrane for sterilization, dispense into light-proof pump bottles, and seal for storage.

[0048] Example 5

[0049] A method for preparing a deep-detoxifying scalp hair care essence based on natural plant compound extracts is as follows: Weigh a portion of the aqueous phase matrix (40%) and heat it to approximately 45°C in a clean stainless steel emulsifying pot. Slowly add polyglutamic acid (1.2%) and a ceramide complex (2.0%) sequentially, and disperse evenly for approximately 15 minutes under magnetic stirring to promote complete dissolution and mixing. Separately, take activated charcoal powder (3.0%) and slowly add the remaining portion of the preheated aqueous phase matrix (42.3%) to a high-speed shear disperser, dispersing at 1000 rpm for 10 minutes. To ensure even distribution, slowly pour the mixture into the mixing bowl and continue stirring. Then, slowly add tea tree oil (1.0%) at 35°C, using polysorbate-80 (0.5%) to assist emulsification, and increase the speed to 1500 rpm for 10 minutes to form a stable water-in-oil microemulsion. Subsequently, add chamomile extract (10.0%) and slowly stir at room temperature for 10 minutes to avoid heat damage to the active ingredients. Finally, adjust the pH to 5.5±0.2, filter through a 0.22μm sterile filter membrane for sterilization, dispense into light-proof pump bottles, and seal for storage.

[0050] Comparative Examples 1-20

[0051] Based on the formula data in Table 1, the weight percentage of each component in the preparation process of Example 1 was adjusted accordingly to obtain 20 kinds of deep scalp detoxifying and hair care essences.

[0052] Table 1: Summary of Deep Scalp Detoxifying Hair Care Essence Formulas

[0053]

[0054]

[0055] The scalp deep detox hair care essences prepared in Examples 1-5 and Comparative Examples 1-20 were tested according to the following methods to evaluate the differences in the effects of each scalp deep detox hair care essence.

[0056] Scalp sebum residue measurement: Before the test, subjects were allowed to rest naturally for 30 minutes without any scalp cleansing products to stabilize scalp sebum levels. Twenty-four hours after product use, a standard Sebumeter SM815 sebum meter was used to test a 2cm x 2cm area in the center of the subject's scalp. The sebum measuring probe was pressed for 15 seconds, and the reading was recorded as the amount of sebum residue (unit: μg / cm2). Each subject was measured three times, and the average value was used as the sebum residue data for that sample. The product's cleansing and detoxifying ability was assessed by the degree of reduction in sebum residue.

[0057] TEWL (Transdermal Water Loss) Measurement: Using German... The TM300 was used to measure TEWL values. After the subject sat quietly in an air-conditioned, temperature-controlled room for 30 minutes, a 2cm diameter area was selected in the central scalp. The sensor was gently placed vertically on the measurement area, and the value was recorded after 10 seconds of stabilization. The unit is g / m². 2 / h. Each subject was measured three times consecutively, and the average value was used to assess the product's impact on scalp barrier repair and moisture retention. The greater the reduction in TEWL, the stronger the barrier repair ability.

[0058] Erythema Index Measurement: The erythema index of the scalp was measured using a multispectral skin analyzer (VISIA-CR system). Forty-eight hours after product use, the test site was photographed under both natural and standard light sources. The system automatically identified red areas and quantified the erythema index; a lower value indicated a milder inflammatory response. Each subject was sampled three times at the same site, and the results were averaged to compare the moderating ability of different samples on scalp sensitivity and inflammation risk.

[0059] Antibacterial activity test: The total number of colonies (CFU / cm³) on the scalp surface before and after product use was determined using the agar plate contact method. 2 The following measurements were taken: 72 hours after the subjects used the product, samples were collected from a standard area of ​​the scalp. A sterile cotton swab was used to apply the sample to the contact medium (nutrient agar), and the sample was incubated at 30°C for 48 hours after contact with the medium. The total number of colonies per unit area was then counted. Data from 10 subjects were analyzed for each sample group, and the average colony count was calculated. A greater reduction in colony count indicates a better antibacterial effect of the product.

[0060] pH recovery rate determination: Before testing, the basal pH value of the scalp and the pH value immediately after product application were measured using a skin surface pH meter. Subsequently, under no external interference, the pH value was measured every 10 minutes until the scalp pH value recovered to close to the basal value (±0.1). The time taken (in minutes) was recorded as the pH recovery time. The faster the pH recovery, the better the product's gentleness and scalp environment regulation ability.

[0061] Table 2: Experimental data of the Example Group and the Comparative Group

[0062]

[0063] The data in Table 2 is analyzed and summarized as follows:

[0064] Example 1 showed excellent and balanced performance across all five tests, with a low sebum residue level (9.6 μg / cm³). 2 The TEWL value was 7.8, the lowest erythema index was 10.5, and the colony count was 260 CFU / cm³. 2 With a pH recovery time of only 10 minutes, it demonstrates optimal deep detoxification, soothing repair, and barrier strengthening capabilities.

[0065] In Example 2, the concentrations of chamomile, activated charcoal, ceramide complex, and polyglutamic acid were all increased, and the sebum residue level (8.2 μg / cm³) was reduced. 2 ), TEWL (7.2g / m 2 / h) and bacterial colony count (248 CFU / cm³) 2 The concentrations of the core ingredients were the lowest in the Example group, and the erythema index (10.1) was better than that in Example 1, indicating that increasing the concentration of the core ingredients can synergistically enhance the oil control, antibacterial and repair efficiency and optimize the overall efficacy.

[0066] In Example 3, the concentrations of chamomile, activated charcoal, tea tree oil, and ceramide complex were all reduced, and the sebum residue level was 9.0 μg / cm³. 2 ) and TEWL (7.5g / m 2 The erythema index (12.3) and bacterial colony count (275 CFU / cm³) were close to those of Example 1, but the erythema index (12.3) and bacterial colony count (275 CFU / cm³) were significantly higher. 2 A slight increase indicates that the concentration of the ingredients needs to be maintained at a basic threshold. When it is below the threshold, the soothing and antibacterial effects decrease slightly, but the basic barrier repair ability is still maintained.

[0067] In Example 4, the concentrations of tea tree oil (+0.5%) and ceramide (+2%) increased, and the sebum residue (11.2 μg / cm³) was also increased. 2 ) and bacterial colony count (298 CFU / cm³) 2 (Exceeding Example 1, TEWL (8.3g / m)) 2 The pH recovery time increased slightly to 13 minutes, indicating that an excessive amount of a single antibacterial ingredient may disrupt the barrier balance and needs to be dynamically matched with repair ingredients to avoid cumulative irritation.

[0068] In Example 5, the concentrations of chamomile (+2%) and polyglutamic acid (+0.2%) were increased, while the concentration of tea tree oil (-1%) was decreased, and the sebum residue (10.8 μg / cm³) was reduced. 2 ) and bacterial colony count (270 CFU / cm³) 2 The erythema index (12.0) was slightly higher than in Example 1, indicating that the high proportion of soothing ingredients may weaken the antibacterial effect. It is necessary to balance the proportion of "detoxification-antibacterial" and "repair" ingredients.

[0069] Comparative Example 1: After the absence of activated charcoal powder, the amount of sebum residue (11.2 μg / cm³) was... 2 ) and bacterial colony count (290 CFU / cm³) 2 The levels of erythema index (25.0) increased significantly, indicating that activated charcoal powder is the core component for adsorbing scalp oil and toxins. Its absence caused the detoxification mechanism to fail, triggering an inflammatory response.

[0070] Comparative Example 2, without chamomile extract, had the highest erythema index (21.5) and TEWL (8.3 g / m²).2 The significant deterioration of the pH recovery time (18 min) and pH recovery time ( / h) indicates that chamomile extract is a key component for relieving detoxification stimulation. Its absence leads to uncontrolled inflammatory response and delayed barrier repair.

[0071] Comparative Example 3: After the absence of tea tree oil, the bacterial colony count (300 CFU / cm³) 2 The highest level was observed in the antibacterial deficiency group, with TEWL (16.4 g / m²). 2 An abnormally high level of / h indicates that tea tree oil is the core component for inhibiting pathogenic bacteria. Its absence exacerbates the imbalance of the microbial community and severely impairs the barrier function.

[0072] Comparative Example 4: After the absence of the ceramide complex, TEWL (8.1 g / m²) 2 / h) and bacterial colony count (460 CFU / cm) 2 The ceramide complex was the worst in the group, with a significantly increased erythema index (19.6), indicating that the ceramide complex is the core component for rebuilding the scalp lipid barrier. Its absence leads to the loss of barrier integrity, resulting in dysbiosis and recurrent inflammation.

[0073] Comparative Example 5, after the loss of polyglutamic acid, had the longest pH recovery time (22 min) of the entire group, with TEWL (10.2 g / m²) being the lowest. 2 / h) and bacterial colony count (340 CFU / cm) 2 The significant increase in polyglutamic acid indicates that polyglutamic acid is an essential component for maintaining scalp hydration and repair. Its deficiency delays the restoration of acid-base balance and indirectly weakens the barrier's defense capabilities.

[0074] In comparative examples 6-8, as the concentration of chamomile extract decreased, the erythema index increased from 16.8 to 18.2, and the bacterial colony count increased from 370 to 390 CFU / cm³. 2 The results indicate that chamomile concentration is positively correlated with its soothing and anti-inflammatory effects, and its anti-inflammatory and antibacterial capabilities decrease significantly when the concentration is below 5%.

[0075] As the concentration of chamomile extract increased in Comparative Examples 9-10, the erythema index of Comparative Example 10 (15%) (11.0) was close to that of Example 1, and the TEWL (7.2 g / m³) was similar. 2 The result ( / h) was better than most other groups, indicating that chamomile, as a natural extract, remains mild even at high concentrations and does not significantly increase irritation.

[0076] In Comparative Example 11, the activated charcoal content was reduced, and the sebum residue was 16.4 μg / cm³. 2 ) and bacterial colony count (400 CFU / cm³) 2 The surge indicates that when the concentration of activated carbon is below 3%, its physical adsorption capacity is insufficient, leading to a chain reaction of inflammatory reactions caused by oil and toxin residues.

[0077] Comparative Examples 12-14 showed increased activated charcoal content and sebum residue levels (8.8-9.0 μg / cm³). 2 The concentration was lower than in Example 1, but TEWL (9.1-9.7 g / m³) was lower. 2 The slight increase in the concentration of activated carbon ( / h) indicates that the higher the concentration in the range of 3%-8%, the stronger the adsorption capacity. However, excessively high concentrations may increase the slight irritation due to physical friction.

[0078] In Comparative Example 15, the tea tree oil content was reduced, and the bacterial count (295 CFU / cm³) was decreased. 2 The results were similar to those in Example 1, but did not achieve a significant antibacterial effect, indicating that the concentration of tea tree oil needs to be ≥2% to effectively inhibit pathogenic bacteria, and the antibacterial ability is insufficient when it is below the threshold.

[0079] In comparative examples 16-17, the tea tree oil content increased, and the bacterial count (235-240 CFU / cm³) was also higher. 2 The concentration of tea tree oil was significantly lower than that of Example 1, but the erythema index (13.8-15.1) was higher, indicating that the antibacterial effect of tea tree oil increases with concentration. However, concentrations exceeding 2.5% may cause irritation, and a balance between antibacterial activity and mildness is required.

[0080] In comparative examples 18-20, the content of ceramide complex decreased, and TEWL increased from 8.1 to 8.9 g / m³. 2 / h, pH recovery time increased from 13 to 15 min, indicating that ceramide concentration is positively correlated with barrier repair efficiency. When the concentration is below 3%, the repair capacity decreases significantly, and a concentration of ≥3% needs to be maintained to ensure barrier function.

[0081] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the original intent of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A scalp deep-detoxifying and hair-care essence based on natural plant compound extracts, characterized in that: By weight percentage, it includes the following components: Chamomile extract: 5-10%; Activated carbon powder: 2-5%; Tea tree oil: 1-3%; Ceramide complex: 2-6%; Polyglutamic acid: 0.5-2%; Emulsifier: 0.3-0.5%; Water-soluble matrix: Add to 100%.

2. The scalp deep detoxifying and hair care essence according to claim 1, characterized in that, The chamomile extract is an ethanol-water extract containing no less than 1.0% total flavonoids.

3. The scalp deep detoxifying and hair care essence according to claim 1, characterized in that, The ceramide complex comprises a mixture of ceramide NP, ceramide EOP, and cholesterol.

4. The scalp deep detoxifying and hair care essence according to claim 1, characterized in that, The water-soluble matrix includes glycerol, butanediol and water.

5. A method for preparing a deep scalp detoxifying and hair-conditioning essence according to any one of claims 1-4, characterized in that, The process includes the following steps: weighing a portion of the aqueous phase matrix and heating it, then adding polyglutamic acid and ceramide complex sequentially and stirring to disperse them; dispersing activated carbon powder and the remaining preheated water phase matrix in a high-speed shear disperser and then pouring it into the main pot for continued stirring; adding tea tree oil dropwise at an appropriate temperature, using an emulsifier to assist emulsification and shearing to form a stable water-in-oil microemulsion; adding chamomile extract and stirring slowly at room temperature; adjusting the pH of the system, filtering it through a sterile filter membrane for sterilization, and then dispensing it into light-proof containers for sealed storage.

6. The method for preparing the deep scalp detoxifying and hair-conditioning essence according to claim 5, characterized in that, The activated carbon powder is pretreated to be ultrafine carbon powder with a particle size ≤20μm to improve adsorption performance.

7. The method for preparing the deep scalp detoxifying hair care essence according to claim 5, characterized in that, After emulsification, the pH value is adjusted to 5.0-5.8 to adapt to the slightly acidic environment of the scalp.

8. The method for preparing the deep scalp detoxifying hair care essence according to claim 5, characterized in that, The temperature is controlled to be no higher than 45℃ throughout the preparation process to maintain the stability of the plant active ingredients.

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