A method for preparing a scalp barrier repair hair product based on peony flower water composition

Abstract

The present application relates to the field of hair care products, and discloses a preparation method of a scalp barrier repair hair product based on peony flower water composition, comprising the following steps: S1: selecting fresh, non-molded, and non-diseased peony petals, removing impurities, and then washing with deionized water, draining the surface moisture, mixing the peony petals with deionized water, placing them in a distillation kettle for low-temperature distillation under reduced pressure, collecting the distillation condensate, filtering through a microporous filter membrane, obtaining refined peony flower water, and reserving it for use. The present application has the following advantages and effects: the peony phenol and polyphenol components in the peony flower water achieve strong anti-inflammatory and antioxidant effects, the combination of the spilanthes extract and the dipotassium glycyrrhizinate enhances the soothing and anti-inflammatory effects, the ceramide NP and the sodium hyaluronate supplement the scalp cuticle lipids and achieve multi-level moisturizing, and the plant extracts such as Hedera helix further improve the antioxidant and scalp nourishing effects.

Description

Technical Field

[0001] This invention relates to the field of hair care products technology, and in particular to a method for preparing a scalp barrier repair hair product based on a peony flower water composition. Background Technology

[0002] The scalp barrier, an important protective barrier for scalp health, is composed of the stratum corneum and the sebum film. It is easily damaged by factors such as frequent perming and dyeing, excessive cleaning, mental stress, and environmental stimuli, which can lead to problems such as dry and itchy scalp, redness and sensitivity, increased dandruff, and abnormal oil production. In severe cases, it can also cause folliculitis and hair loss.

[0003] Existing technology application number 202311080536.4 discloses an oil-controlling shampoo and its preparation method, which mainly achieves scalp oil control by combining rose water with oil-controlling ingredients. Although it can improve the problem of oily scalp, its repair effect on damaged scalp barrier is weak. Moreover, the anti-inflammatory, antioxidant and barrier repair-related activities of rose water are weak, and it cannot solve the problem of scalp sensitivity, dryness, redness and other barrier damage problems from the root. At the same time, many existing similar hair care products have problems such as unreasonable compounding of active ingredients and preparation process not optimized for plant active ingredients, resulting in easy loss of active ingredients, poor efficacy synergy, poor repair effect and easy irritation to sensitive scalp.

[0004] Therefore, it is necessary to design a method for preparing a scalp barrier repair hair product based on a peony flower water composition to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a method for preparing a scalp barrier repair hair product based on a peony flower water composition, in order to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a method for preparing a scalp barrier repair hair product based on a peony flower water composition, comprising the following steps: S1: Select fresh, mold-free, and pest-free peony petals, remove impurities, rinse them with deionized water, drain the surface water, mix the peony petals with deionized water, place them in a distillation kettle for low-temperature distillation under reduced pressure, collect the distillation condensate, filter it through a microporous membrane to obtain refined peony flower water for later use. S2: Take 80-90 parts of peony flower water, 5-10 parts of purslane extract, 3-5 parts of panthenol, 1-3 parts of ceramide, 0.5-2 parts of sodium hyaluronate, 0.2-1 part of allantoin, 0.1-0.5 parts of dipotassium glycyrrhizate, and 0.1-0.5 parts of vitamin B5, place them in a mixing tank and stir to mix, and obtain the peony flower water composition for later use; S3: Prepare 2-4 parts of ivy extract, 2-4 parts of lemon extract, 1-3 parts of tea seed extract, and 1-3 parts of lotus leaf extract; S4: Add all the plant extracts from step S3 to the peony flower water composition prepared in step S2, heat and stir to compound, and use ultrasonic dispersion to assist mixing during the process to obtain a composite active composition. S5: Prepare the hair base material. Slowly add the compound active composition to the hair base material and stir and emulsify it. During the emulsification process, add lactic acid dropwise to adjust the pH value of the system. After the system is completely stable, the scalp barrier repair hair product based on the peony flower water composition is obtained.

[0007] A further setting of the present invention is as follows: In step S1, the ratio of peony petals to deionized water is 1:8, the distillation pressure of vacuum low-temperature distillation is -0.06 to -0.08 MPa, the distillation temperature is 55 to 65°C, and the distillation time is 2 to 3 hours.

[0008] A further feature of the present invention is that, in step S1, the pore size of the microporous filter membrane is 0.22 μm, and the membrane is stirred once every 30 minutes at a speed of 30-50 r / min during the low-temperature distillation under reduced pressure.

[0009] By adopting the above technical solution, the limited material-liquid ratio and reduced pressure low temperature distillation parameters can maximize the extraction of heat-sensitive active ingredients such as polyphenols, flavonoids, and paeonol from peony petals, avoiding the decomposition and inactivation of active ingredients caused by high temperature and high pressure; timed low-speed stirring can prevent petals from sticking to the wall and clumping, ensuring sufficient and uniform extraction.

[0010] The present invention is further configured such that: in step S2, the stirring temperature is 35-40℃, the stirring speed is 80-100r / min, the stirring time is 20-30min, and the stirring is carried out until the system is uniform and transparent.

[0011] By adopting the above technical solution, the mild medium and low temperature stirring conditions can effectively protect the structural integrity of active ingredients such as ceramide NP, panthenol, and vitamin B5, and avoid high temperature damage to their biological activity; the appropriate speed and stirring time can allow the various functional ingredients to be fully integrated and evenly dispersed with peony flower water, so that the system reaches a uniform and transparent stable state, and improves the compatibility of the peony flower water composition.

[0012] A further provision of the present invention is that, in step S2, the purslane extract is an aqueous extract with an extraction rate ≥20%, and the ceramide is ceramide NP with a purity ≥98%.

[0013] A further feature of the present invention is that, in step S3, the ivy extract, lemon extract, tea seed extract, and lotus leaf extract are all hydroalcohol extracts.

[0014] By adopting the above technical solutions, the water-alcohol extraction process can more fully extract active ingredients such as flavonoids, polyphenols, saponins, and plant polysaccharides from various plants compared with single water extraction or alcohol extraction, thereby increasing the content of effective ingredients and bioactivity of the extract.

[0015] A further setting of the present invention is as follows: In step S4, the temperature is raised to 42-48℃ for stirring and compounding, the stirring speed is 120-150 r / min, and the stirring and compounding time is 18-25 min.

[0016] A further setting of the present invention is as follows: in step S5, the amount of the composite active composition added is 20-28% of the weight of the base material, the stirring and emulsification temperature is 36-40℃, the stirring speed is 180-220r / min, the emulsification time is 20-30min; and the pH value of the system after lactic acid adjustment is 5.0-6.5.

[0017] By adopting the above technical solution, the scalp barrier repair function can be fully utilized without causing the product system to become viscous or layered due to excessive addition, thus affecting product stability and user experience.

[0018] The beneficial effects of this invention are: 1. The peony flower water of this invention contains peony phenols, polyphenols and other ingredients that achieve strong anti-inflammatory and antioxidant effects. Combined with purslane extract and dipotassium glycyrrhizate, it enhances the soothing and anti-inflammatory effects, quickly relieving scalp redness and itching. Ceramide NP and sodium hyaluronate replenish the lipids of the scalp stratum corneum and achieve multi-level moisturization. Plant extracts such as ivy further enhance the antioxidant and scalp nourishing effects. 2. The present invention maximizes the retention of heat-sensitive active ingredients in peony flower water through reduced pressure and low temperature distillation. Multi-stage gentle stirring and ultrasonic dispersion ensure that the components are evenly integrated and their activity is not destroyed. Precise emulsification and pH adjustment make the product system stable and compatible with the physiological environment of the scalp, effectively solving the problems of easy loss of active ingredients, poor compatibility and irritation to sensitive scalps in existing products. 3. Each step of this invention uses conventional equipment in the field of hair care product manufacturing, without the need for special equipment. Moreover, the composite active composition has high compatibility with hair care base materials, and can flexibly prepare a variety of hair care products such as shampoo, conditioner, and scalp serum. Large-scale industrial production is easy. 4. Peony flower water prepared using vacuum low-temperature distillation completely replaces deionized water / purified water in traditional formulas, allowing it to simultaneously function as a solvent and a carrier of core efficacy. Natural active ingredients such as paeonol, paeonol polyphenols, paeoniflorin, and galloylpaeoniflorin are preserved to the maximum extent and directly integrated into the formula system, rather than existing as additional excipients. This design breaks through the technical limitations of traditional hair care products where water is merely a solvent and peony ingredients are an additive, constructing a scalp repair system based entirely on peony flower water. This makes the source of scalp barrier repair efficacy purer and more concentrated, and significantly improves the bioavailability of active ingredients.

[0019] 5. Peony flower water can regulate the balance of scalp flora, inhibit the growth of harmful bacteria (such as Malassezia and Staphylococcus aureus) without destroying beneficial bacteria, and maintain the stability of the scalp's microecology. Paeoniflorin, paeonol and other ingredients protect hair papilla cells, improve scalp blood circulation, deliver nutrients to hair follicles, prolong the hair follicle growth phase, and achieve hair loss prevention and hair strengthening. Ceramide NP replenishes stratum corneum lipids, sodium hyaluronate provides multi-level moisturizing, allantoin and dipotassium glycyrrhizate quickly soothe redness and itching, and peony flower water promotes filaggrin synthesis, enhances the density and water-locking ability of the stratum corneum. Compared with the single function of existing products, it is more in line with the complex needs of scalp health, and the repair effect is more thorough and longer-lasting.

[0020] 6. Based on natural peony flower water, and combined with gentle soothing ingredients such as purslane, allantoin, and dipotassium glycyrrhizate, this product has extremely low irritation and is gentle on sensitive scalps. The natural slightly acidic pH of peony flower water is highly compatible with the scalp environment, reducing acid-base irritation during cleansing and maintaining the scalp's normal barrier function. Compared to some rose-based products that may pose contact sensitization risks and inhibit beneficial bacteria, this invention has more targeted ingredients, higher safety, and is suitable for a wider range of people. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic flowchart of a method for preparing a scalp barrier repair hair product based on a peony flower water composition proposed in this invention. Detailed Implementation

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through the specific circumstances.

[0024] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. 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.

[0025] Example 1 See Figure 1 This invention provides a method for preparing a scalp barrier repair hair product based on a peony flower water composition, comprising the following steps: S1: Select fresh, mold-free, and pest-free peony petals, remove impurities, rinse them with deionized water, drain the surface water, mix the peony petals with deionized water, place them in a distillation kettle for low-temperature distillation under reduced pressure, collect the distillation condensate, filter it through a microporous membrane to obtain refined peony flower water for later use. S2: Take 80 parts of peony flower water, 10 parts of purslane extract, 5 parts of panthenol, 1 part of ceramide, 2 parts of sodium hyaluronate, 1 part of allantoin, 0.5 parts of dipotassium glycyrrhizate, and 0.5 parts of vitamin B5, place them in a mixing tank and stir to mix to obtain the peony flower water composition, and set aside for later use. S3: Prepare 2 portions of ivy extract, 2 portions of lemon extract, 1 portion of tea seed extract, and 1 portion of lotus leaf extract; S4: Add all the plant extracts from step S3 to the peony flower water composition prepared in step S2, heat and stir to compound, and use ultrasonic dispersion to assist mixing during the process to obtain a composite active composition. S5: Prepare the hair base material. Slowly add the compound active composition to the hair base material and stir and emulsify it. During the emulsification process, add lactic acid dropwise to adjust the pH value of the system. After the system is completely stable, the scalp barrier repair hair product based on the peony flower water composition is obtained.

[0026] Specifically, in step S1, the ratio of peony petals to deionized water is 1:8; the distillation pressure for vacuum low-temperature distillation is -0.06 MPa; the distillation temperature is 55℃; and the distillation time is 2 hours. In step S1, the microporous membrane has a pore size of 0.22 μm. During vacuum low-temperature distillation, the mixture is stirred at 30 r / min every 30 minutes. In step S2, the mixing temperature is 35℃; the stirring speed is 80 r / min; and the mixing time is 20 minutes, stirring until the system is homogeneous and transparent. In step S2, the purslane extract is an aqueous extract. The yield is ≥20%, the ceramide is ceramide NP, and its purity is ≥98%. In step S3, the ivy extract, lemon extract, tea seed extract, and lotus leaf extract are all water-alcohol extracts. In step S4, the temperature is raised to 42℃ for stirring and compounding, the stirring speed is 120r / min, and the stirring and compounding time is 18min. In step S5, the amount of the composite active composition added is 20% of the weight of the base material, the stirring and emulsification temperature is 36℃, the stirring speed is 180r / min, and the emulsification time is 20min. The pH value of the system after lactic acid adjustment is 5.0.

[0027] Example 2 See Figure 1 This invention provides a method for preparing a scalp barrier repair hair product based on a peony flower water composition, comprising the following steps: S1: Select fresh, mold-free, and pest-free peony petals, remove impurities, rinse them with deionized water, drain the surface water, mix the peony petals with deionized water, place them in a distillation kettle for low-temperature distillation under reduced pressure, collect the distillation condensate, filter it through a microporous membrane to obtain refined peony flower water for later use. S2: Take 84 parts of peony flower water, 10 parts of purslane extract, 3 parts of panthenol, 1 part of ceramide, 0.5 parts of sodium hyaluronate, 0.5 parts of allantoin, 0.5 parts of dipotassium glycyrrhizate, and 0.5 parts of vitamin B5, place them in a mixing tank and stir to mix to obtain the peony flower water composition, and set aside for later use. S3: Prepare 2-4 parts of ivy extract, 2-4 parts of lemon extract, 1-3 parts of tea seed extract, and 1-3 parts of lotus leaf extract; S4: Add all the plant extracts from step S3 to the peony flower water composition prepared in step S2, heat and stir to compound, and use ultrasonic dispersion to assist mixing during the process to obtain a composite active composition. S5: Prepare the hair base material. Slowly add the compound active composition to the hair base material and stir and emulsify it. During the emulsification process, add lactic acid dropwise to adjust the pH value of the system. After the system is completely stable, the scalp barrier repair hair product based on the peony flower water composition is obtained.

[0028] Specifically, in step S1, the ratio of peony petals to deionized water is 1:8; the distillation pressure for vacuum low-temperature distillation is 0.02 MPa; the distillation temperature is 60℃; and the distillation time is 2 hours. In step S1, the microporous membrane has a pore size of 0.22 μm. During vacuum low-temperature distillation, the mixture is stirred at 40 r / min every 30 minutes. In step S2, the mixing temperature is 38℃; the stirring speed is 90 r / min; and the mixing time is 25 minutes, until the system is homogeneous and transparent. In step S2, the purslane extract is an aqueous extract. The yield is ≥20%, the ceramide is ceramide NP, and its purity is ≥98%. In step S3, the ivy extract, lemon extract, tea seed extract, and lotus leaf extract are all water-alcohol extracts. In step S4, the temperature is raised to 46℃ for stirring and compounding, the stirring speed is 135r / min, and the stirring and compounding time is 22min. In step S5, the amount of the composite active composition added is 24% of the weight of the base material, the stirring and emulsification temperature is 38℃, the stirring speed is 200r / min, and the emulsification time is 25min. The pH value of the system after lactic acid adjustment is 6.0.

[0029] Example 3 See Figure 1 This invention provides a method for preparing a scalp barrier repair hair product based on a peony flower water composition, comprising the following steps: S1: Select fresh, mold-free, and pest-free peony petals, remove impurities, rinse them with deionized water, drain the surface water, mix the peony petals with deionized water, place them in a distillation kettle for low-temperature distillation under reduced pressure, collect the distillation condensate, filter it through a microporous membrane to obtain refined peony flower water for later use. S2: Take 88 parts of peony flower water, 6 parts of purslane extract, 3 parts of panthenol, 1 part of ceramide, 0.5 parts of sodium hyaluronate, 1 part of allantoin, 0.2 parts of dipotassium glycyrrhizate, and 0.3 parts of vitamin B5, place them in a mixing tank and stir to mix, and obtain the peony flower water composition for later use. S3: Prepare 4 portions of ivy extract, 4 portions of lemon extract, 3 portions of tea seed extract, and 3 portions of lotus leaf extract; S4: Add all the plant extracts from step S3 to the peony flower water composition prepared in step S2, heat and stir to compound, and use ultrasonic dispersion to assist mixing during the process to obtain a composite active composition. S5: Prepare the hair base material. Slowly add the compound active composition to the hair base material and stir and emulsify it. During the emulsification process, add lactic acid dropwise to adjust the pH value of the system. After the system is completely stable, the scalp barrier repair hair product based on the peony flower water composition is obtained.

[0030] Specifically, in step S1, the ratio of peony petals to deionized water is 1:8; the distillation pressure for vacuum low-temperature distillation is 0.08 MPa; the distillation temperature is 65℃; and the distillation time is 3 hours. In step S1, the microporous membrane has a pore size of 0.22 μm. During vacuum low-temperature distillation, the mixture is stirred at 50 r / min every 30 minutes. In step S2, the mixing temperature is 40℃; the stirring speed is 100 r / min; and the mixing time is 30 minutes, stirring until the system is homogeneous and transparent. In step S2, the purslane extract is an aqueous extract. The yield is ≥20%, the ceramide is ceramide NP, and its purity is ≥98%. In step S3, the ivy extract, lemon extract, tea seed extract, and lotus leaf extract are all water-alcohol extracts. In step S4, the temperature is raised to 48℃ for stirring and compounding, the stirring speed is 150r / min, and the stirring and compounding time is 25min. In step S5, the amount of the composite active composition added is 28% of the weight of the base material, the stirring and emulsification temperature is 40℃, the stirring speed is 220r / min, and the emulsification time is 30min. The pH value of the system after lactic acid adjustment is 6.5.

[0031] Peony flower water completely replaces the deionized water / purified water in traditional formulas. Peony flower water is formed by distillation, which allows it to simultaneously serve as a "solvent" (dissolving the oil phase and active ingredients) and a "core efficacy carrier" (its own rich peony phenols, polyphenols, flavonoids and other active ingredients directly participate in efficacy), thus constructing a "full efficacy system of peony flower water matrix".

[0032] The fundamental difference from existing technologies is that in existing technologies, "water" is merely a solvent, and peony components (such as extracts) are "additional excipients." In this invention, however, peony flower water is the basic framework of the formula (replacing water while also being the core source of efficacy), achieving the integration of "solvent + efficacy components," rather than a simple physical mixture of "water + peony extract."

[0033] By utilizing the naturally abundant water-soluble active ingredients (phenols, glycosides, etc.) in peony flower water, a new synergistic system is formed with oil phase components (such as ceramides, phytosterols, etc.). The water-soluble active ingredients enhance the solubility and stability of the oil phase components, while the oil phase components strengthen the barrier repair and anti-inflammatory effects of peony flower water, ultimately achieving an overall efficacy leap of "1+1>2".

[0034] The fundamental difference from existing technologies: In existing technologies, peony components are mostly "alcohol-extracted / oil-extracted products" (poor water solubility and weak stability in the aqueous phase), and their synergy with oil phase components is limited by solubility; while this invention is based on natural water-soluble active substances from "whole peony flower water matrix", which fundamentally solves the problem of dissolution and stability of active substances in the aqueous phase, and provides a foundation for deep synergy between the oil phase and the aqueous phase.

[0035] Moving beyond the single-effect logic of "dandruff removal and antibacterial properties," it constructs a multi-target synergistic regulatory mechanism of "microecology - hair follicle microenvironment - scalp barrier"—peony flower water regulates the balance of scalp flora (microecology), improves the metabolic environment around hair follicles (hair follicle microenvironment), and at the same time repairs the stratum corneum and replenishes lipids (scalp barrier) through active ingredients, achieving systematic repair "from the surface layer of the scalp to the deep microenvironment."

[0036] The fundamental difference from existing technologies: Existing technologies often focus on claims of "single effects (such as dandruff removal and antibacterial properties)" and lack the scientific logic of "multi-target linkage"; This invention elucidates the repair mechanism of the whole peony flower water system from the systemic perspective of "microecology-hair follicle-barrier", which is more in line with the complex needs of scalp health.

[0037] This invention breaks through the traditional limitations of "water as a solvent, peony as an additive, and single efficacy" by three-dimensional innovation: "formula system reconstruction (peony flower water replacing water) → component synergistic upgrade (water-soluble active ingredients - oil phase synergy) → mechanism of action deepening (multi-target systemic repair)". It constructs a new paradigm for scalp barrier repair with "peony flower water as the core architecture", which not only achieves a fundamental change in the formula system, but also forms a differentiated barrier from the scientific and efficacy levels.

[0038] The hair care products prepared using Examples 1-3 were compared with conventional rose water-based shampoos: Peony is rich in potent natural anti-inflammatory components such as paeoniflorin, oxypaeoniflorin, and paeonol. These components can directly inhibit key inflammatory signaling pathways (such as NF-κB and MAPK) and significantly reduce the production of pro-inflammatory factors (TNF-α, IL-1β, IL-6, and PGE2). Paeonol can also inhibit histamine release, quickly relieving itching. Paeonol has a clear inhibitory effect on common pathogenic bacteria such as Malassezia and Staphylococcus aureus, reducing the risk of folliculitis and scalp allergies from the root cause.

[0039] While the main active ingredients in rose (such as citronellol and geraniol) have anti-inflammatory effects, they primarily work through antioxidant and mild antibacterial mechanisms, resulting in a relatively broad spectrum of mechanisms. Furthermore, some components pose a risk of contact sensitization. Peony components, on the other hand, are more targeted and particularly suitable for seborrheic dermatitis, mild scalp eczema, and inflammatory issues related to sensitive scalps.

[0040] Peony not only contains polyphenols and flavonoids, but its unique compounds, such as galloylpaeoniflorin, have a stronger free radical scavenging ability (e.g., DPPH and ABTS+ scavenging rates are significantly higher than those of rose components). Paeoniflorin can protect hair papilla cells (the "command center" of hair growth) from oxidative stress damage, directly maintain the healthy cycle of hair follicles, inhibit sebum peroxidation, and reduce hair follicle blockage.

[0041] Roses' antioxidant capacity mainly relies on polyphenols, which can neutralize environmental free radicals, but there is weak evidence for their protective effect on functional cells. Peonies, on the other hand, have an antioxidant mechanism coupled with anti-inflammatory pathways, making them more targeted at the needs of the scalp microenvironment.

[0042] The polysaccharides in peony work synergistically with paeoniflorin: polysaccharides form a breathable and moisturizing film on the scalp, reducing moisture loss during cleansing; paeoniflorin promotes filaggrin (FLG) synthesis, enhancing the density of the stratum corneum and fundamentally improving the scalp's moisture-locking ability. The pH value of peony flower water (5.0–5.8) is closer to the slightly acidic environment of the scalp, reducing irritation without additional adjustment.

[0043] Rose water has a slightly acidic pH (4.5–5.0), and long-term use may disrupt the acid-base balance; its moisturizing effect relies mainly on temporary film formation and lacks an active mechanism to promote barrier repair.

[0044] Peony reduces compensatory oil production through its anti-inflammatory properties. Its tannins gently inhibit the activity of sebaceous gland lipase, preventing excessive sebum secretion without damaging the skin barrier. Paeonol's local sedative effect relieves neurogenic itching, and peony components do not inhibit beneficial bacteria on the scalp (such as Staphylococcus), maintaining the balance of the scalp's microecology.

[0045] Rose components (such as geraniol) may inhibit beneficial bacteria, and long-term use may lead to microecological imbalance; its soothing effect is relatively singular and difficult to address the multifactorial causes of oily and sensitive scalps. Paeoniflorin and paeonol can dilate capillaries, improve scalp blood circulation, and deliver nutrients to hair follicles.

[0046] Studies have shown that paeoniflorin may promote the proliferation of dermal papilla cells and prolong the hair follicle growth phase through pathways such as Wnt / β-catenin, providing a theoretical basis for preventing hair loss and strengthening hair.

[0047] There is limited scientific evidence that roses directly promote hair follicle health, while peony's components target the core mechanisms of hair follicle function, offering significant advantages.

[0048] Example 2's product combines the core advantages of peony ingredients—anti-inflammatory, antioxidant, and barrier regeneration-promoting—with various compound ingredients to form a precise, multi-dimensional repair approach encompassing moisturizing, anti-inflammatory, soothing, lipid replenishment, and hair follicle care. It can quickly reduce the level of pro-inflammatory factors on the scalp, relieve redness and itching, and its effect is better than that of Example 3 (insufficient dosage of anti-inflammatory ingredients); it promotes the synthesis of filaggrin in the scalp, enhances the density of the stratum corneum, and has better water-locking ability than Example 1 (poor breathability of the moisturizing film caused by the superposition of ingredients); it gently inhibits pathogenic bacteria on the scalp without damaging beneficial bacteria, avoiding the scalp microecological imbalance caused by excessive plant extracts in Example 3; peony root extract can protect hair papilla cells, improve scalp blood circulation, and take into account both barrier repair and hair follicle health, achieving the dual effect of barrier repair and hair root strengthening.

[0049] The process parameters of Example 2 are all within the conventional and easily controllable range of industrial cosmetic production. They do not have the problem of low production efficiency caused by low speed and low temperature in Example 1, nor the problem of increased energy consumption and excessive raw material costs caused by high temperature, high speed and high additive amount in Example 3. Under the premise of ensuring high product quality, cost control of large-scale production can be achieved, which has higher industrial promotion value.

[0050] The preparation method of a scalp barrier repair hair product based on a peony flower water composition provided by the present invention has been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A method for preparing a scalp barrier repair hair product based on a peony flower water composition, characterized in that, Includes the following steps: S1: Select fresh, mold-free, and pest-free peony petals, remove impurities, rinse them with deionized water, drain the surface water, mix the peony petals with deionized water, place them in a distillation kettle for low-temperature distillation under reduced pressure, collect the distillation condensate, filter it through a microporous membrane to obtain refined peony flower water for later use. S2: Take 80-90 parts of peony flower water, 5-10 parts of purslane extract, 3-5 parts of panthenol, 1-3 parts of ceramide, 0.5-2 parts of sodium hyaluronate, 0.2-1 part of allantoin, 0.1-0.5 parts of dipotassium glycyrrhizate, and 0.1-0.5 parts of vitamin B5, place them in a mixing tank and stir to mix, and obtain the peony flower water composition for later use; S3: Prepare 2-4 parts of ivy extract, 2-4 parts of lemon extract, 1-3 parts of tea seed extract, and 1-3 parts of lotus leaf extract; S4: Add all the plant extracts from step S3 to the peony flower water composition prepared in step S2, heat and stir to compound, and use ultrasonic dispersion to assist mixing during the process to obtain a composite active composition. S5: Prepare the hair base material. Slowly add the compound active composition to the hair base material and stir and emulsify it. During the emulsification process, add lactic acid dropwise to adjust the pH value of the system. After the system is completely stable, the scalp barrier repair hair product based on the peony flower water composition is obtained.

2. The method for preparing a scalp barrier repair hair product based on a peony flower water composition according to claim 1, characterized in that, In step S1, the ratio of peony petals to deionized water is 1:8, the distillation pressure of vacuum low-temperature distillation is -0.06 to -0.08 MPa, the distillation temperature is 55 to 65°C, and the distillation time is 2 to 3 hours.

3. The method for preparing a scalp barrier repair hair product based on a peony flower water composition according to claim 1, characterized in that, In step S1, the pore size of the microporous filter membrane is 0.22 μm, and the membrane is stirred once every 30 minutes at a speed of 30-50 r / min during the low-temperature distillation under reduced pressure.

4. The method for preparing a scalp barrier repair hair product based on a peony flower water composition according to claim 1, characterized in that, In step S2, the stirring temperature is 35-40℃, the stirring speed is 80-100r / min, the stirring time is 20-30min, and the stirring is continued until the system is homogeneous and transparent.

5. The method for preparing a scalp barrier repair hair product based on a peony flower water composition according to claim 1, characterized in that, In step S2, the purslane extract is an aqueous extract with an extraction rate of ≥20%, and the ceramide is ceramide NP with a purity of ≥98%.

6. The method for preparing a scalp barrier repair hair product based on a peony flower water composition according to claim 1, characterized in that, In step S3, the ivy extract, lemon extract, tea seed extract, and lotus leaf extract are all hydroalcohol extracts.

7. The method for preparing a scalp barrier repair hair product based on a peony flower water composition according to claim 1, characterized in that, In step S4, the temperature is raised to 42-48℃ for stirring and compounding, the stirring speed is 120-150 r / min, and the stirring and compounding time is 18-25 min.

8. The method for preparing a scalp barrier repair hair product based on a peony flower water composition according to claim 1, characterized in that, In step S5, the amount of the composite active composition added is 20-28% of the weight of the base material, the stirring and emulsification temperature is 36-40℃, the stirring speed is 180-220 r / min, and the emulsification time is 20-30 min; the pH value of the system after lactic acid adjustment is 5.0-6.5.

Images