A composite patch for promoting hair growth, a hair growth cap and a preparation method

Abstract

The application discloses a composite patch for promoting hair growth, a hair growth cap and a preparation method. The composite patch for promoting hair growth comprises the following raw materials in parts by weight: medical grade liquid silicone 40-60 parts, gelatin 20-35 parts, silane coupling agent 1-2 parts, far infrared ceramic powder 1-2 parts, tourmaline powder 1-2 parts, chisel stone powder 0.5-1.5 parts and neodymium-iron-boron magnetic powder 4-6 parts. The composite patch for promoting hair growth is prepared by selecting the raw materials, so that the composite patch has the functions of radiating far infrared, generating a micro electric field and a magnetic field and having weak negative electric characteristics at the interface to improve the directional migration of calcium ions, thereby achieving the purposes of improving the micro environment of hair follicles and promoting hair growth.

Description

Technical Field

[0001] This invention relates to the field of hair growth technology, specifically to a composite patch, a hair growth cap, and a preparation method for promoting hair growth. Background Technology

[0002] Hair loss, also known as alopecia, is the shedding of hair. It is commonly referred to as "spot baldness" and refers to the phenomenon of large-scale hair loss. Clinically, it can be seen as dry hair, patchy hair loss, red and shiny scalp in the hair loss area, and itching or no itching. According to clinical manifestations, it is divided into physiological hair loss and pathological hair loss. It is more common in young adults and often causes a lot of trouble and pain to patients because it affects their appearance.

[0003] Hair loss is becoming increasingly common, with androgenetic alopecia and cicatricial alopecia being particularly difficult to treat due to severe damage to the hair follicle microenvironment. Existing hair regrowth technologies have many shortcomings: drug treatments have significant side effects and are prone to relapse upon discontinuation; surgical transplantation is costly and invasive; traditional physical interventions can only achieve single functions (such as breathability and mechanical support) and cannot fully repair the collapsed hair follicle microenvironment, resulting in poor hair regrowth effects.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a composite patch, a hair growth cap, and a preparation method for promoting hair growth. The composite patch for promoting hair growth of this invention, through the selection of various raw materials, enables it to radiate far-infrared radiation, generate micro electric and magnetic fields, and have weak negative electrical properties at the interface to improve the directional migration of calcium ions, thereby achieving the purpose of improving the microenvironment of hair follicles and promoting hair growth.

[0006] In order to achieve the above-mentioned objectives of the present invention, the following technical solution is adopted:

[0007] The first aspect of this invention provides a composite patch for promoting hair growth, the composite patch comprising the following raw materials in parts by weight:

[0008] The ingredients are: 40-60 parts medical-grade liquid silica gel, 20-35 parts gelatin, 1-2 parts silane coupling agent, 1-2 parts far-infrared ceramic powder, 1-2 parts tourmaline powder, 0.5-1.5 parts Bianstone powder, and 4-6 parts neodymium iron boron magnetic powder.

[0009] Preferably, the hair growth promoting composite patch comprises the following raw materials in parts by weight:

[0010] 50 parts medical-grade liquid silica gel, 30 parts gelatin, 1.5 parts silane coupling agent, 1.5 parts far-infrared ceramic powder, 1.5 parts tourmaline powder, 1 part Bian stone powder, and 5 parts neodymium iron boron magnetic powder.

[0011] Preferably, the hair growth promoting composite patch comprises a top layer, a middle layer, and a bottom layer with different pore sizes.

[0012] A second aspect of the present invention provides a method for preparing the above-mentioned hair growth promoting composite patch, the method comprising the following steps:

[0013] (a) Dissolve gelatin in deionized water to obtain a gelatin solution; add chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil to medical-grade liquid silica gel and stir at 20~22℃ for 10~15 min to obtain a silica gel prepolymer solution and store it at low temperature; dissolve silane coupling agent in water to obtain a silane coupling agent solution; disperse far-infrared ceramic powder, tourmaline powder, Bianstone powder and NdFeB powder in deionized water and then ball mill to obtain a mineral powder dispersion.

[0014] (b) Mix the gelatin solution and the silane coupling agent solution, then add the silica gel prepolymer solution and the mineral powder dispersion solution and mix, then add glycerol and mix well to obtain a mixed slurry;

[0015] (c) Pour a portion of the mixed slurry into a mold and freeze it at -30~-25°C. Then pour a portion of the mixed slurry into the mold and freeze it at -20~-15°C. Then pour the remaining mixed slurry into the mold and freeze it at -10~-5°C. Subsequently, freeze-dry it to obtain a gradient porous composite patch.

[0016] (d) The gradient porous composite patch is placed in a genipin solution for cross-linking reaction, and then rinsed and freeze-dried to obtain the hair growth promoting composite patch.

[0017] Preferably, the concentration of the gelatin solution is 10%~15%; the amount of platinum acid-vinylsiloxane complex and hydrogen-containing silicone oil added is 1%~2% of the amount of medical-grade liquid silica gel; the concentration of the silane coupling agent solution is 1%~2%; and the concentration of the mineral powder dispersion is 8%~12%.

[0018] Preferably, the final concentration of the added glycerol is 2% to 5%.

[0019] A third aspect of the present invention provides the application of the above-mentioned hair growth promoting composite patch in the preparation of hair growth products.

[0020] A fourth aspect of the present invention provides a hair growth cap that promotes hair growth, the hair growth cap comprising a cap body and a composite patch for promoting hair growth; the composite patch for promoting hair growth is detachably disposed on the inner surface of the cap body.

[0021] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0022] This invention provides a composite patch for promoting hair growth. Through the selection of raw materials, it achieves far-infrared radiation, generates micro-electric and magnetic fields, and possesses weakly negatively charged interfacial properties to improve the directional migration of calcium ions. Specifically, medical-grade liquid silicone provides excellent mechanical stability, flexibility, and aging resistance, ensuring the integrity of the patch structure; gelatin, rich in amino acid sequences, enhances adhesion to scalp tissue, providing a good growth interface for hair follicle stem cells; simultaneously, gelatin, in conjunction with the spontaneous polarization of tourmaline and the thermoelectric effect of far-infrared ceramics, achieves a weakly negatively charged surface potential; furthermore, far-infrared ceramic powder can release far-infrared waves. The wavelength resonates with human cells, generating a warming effect that promotes local blood circulation and metabolic efficiency in the scalp, providing energy for the proliferation of hair follicle stem cells. Tourmaline powder can spontaneously generate a micro-electric field, achieving interfacial negative charge synergy with gelatin and far-infrared ceramic powder, enhancing the directional migration of signal ions such as calcium ions. Bianstone powder enhances the penetration depth of the far-infrared warming effect. Neodymium iron boron magnetic powder can generate a gentle static magnetic field, which can regulate the membrane potential and signaling pathways of hair follicle stem cells, activating the hair follicle cycle transition. Under the synergistic effect of the above raw materials, the composite patch can improve the microenvironment of hair follicles and effectively promote hair follicle growth.

[0023] The hair growth promoting composite patch of this invention has a gradient porosity structure through a specific manufacturing process. The surface, middle and bottom layers have different porosities, which can achieve breathability and perspiration, while also slowly releasing nutrients, thereby better improving the microenvironment of hair follicles and achieving a better hair growth promoting effect. Detailed Implementation

[0024] The embodiments of the technical solution of the present invention will be described in detail below with reference to the examples. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and are therefore only examples, and should not be used to limit the scope of protection of the present invention.

[0025] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0026] This invention provides a composite patch for promoting hair growth, the composite patch comprising the following raw materials in parts by weight:

[0027] The ingredients are: 40-60 parts medical-grade liquid silica gel, 20-35 parts gelatin, 1-2 parts silane coupling agent, 1-2 parts far-infrared ceramic powder, 1-2 parts tourmaline powder, 0.5-1.5 parts Bianstone powder, and 4-6 parts neodymium iron boron magnetic powder.

[0028] In one embodiment, the hair growth promoting composite patch comprises the following raw materials in parts by weight:

[0029] 50 parts medical-grade liquid silica gel, 30 parts gelatin, 1.5 parts silane coupling agent, 1.5 parts far-infrared ceramic powder, 1.5 parts tourmaline powder, 1 part Bian stone powder, and 5 parts neodymium iron boron magnetic powder.

[0030] In one embodiment, the hair growth promoting composite patch includes a top layer, a middle layer, and a bottom layer with different pore sizes.

[0031] Another embodiment of the present invention provides a method for preparing the above-mentioned hair growth promoting composite patch, the method comprising the following steps:

[0032] (a) Dissolve gelatin in deionized water to obtain a gelatin solution; add chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil to medical-grade liquid silica gel and stir at 20~22℃ for 10~15 min to obtain a silica gel prepolymer solution and store it at low temperature; dissolve silane coupling agent in water to obtain a silane coupling agent solution; disperse far-infrared ceramic powder, tourmaline powder, Bianstone powder and NdFeB powder in deionized water and then ball mill to obtain a mineral powder dispersion.

[0033] (b) Mix the gelatin solution and the silane coupling agent solution, then add the silica gel prepolymer solution and the mineral powder dispersion solution and mix them together. Then add glycerol and mix well to obtain a mixed slurry.

[0034] (c) Pour a portion of the mixed slurry into a mold and freeze it at -30~-25°C. Then pour a portion of the mixed slurry into the mold and freeze it at -20~-15°C. Then pour the remaining mixed slurry into the mold and freeze it at -10~-5°C. Subsequently, freeze-dry it to obtain a gradient porous composite patch.

[0035] (d) The gradient porous composite patch is placed in a genipin solution for cross-linking reaction, and then rinsed and freeze-dried to obtain the hair growth promoting composite patch.

[0036] Preferably, the concentration of the gelatin solution is 10%~15%; the amount of platinum acid-vinylsiloxane complex and hydrogen-containing silicone oil added is 1%~2% of the amount of medical-grade liquid silica gel; the concentration of the silane coupling agent solution is 1%~2%; and the concentration of the mineral powder dispersion is 8%~12%.

[0037] In one embodiment, the final concentration of the added glycerol is 2% to 5%.

[0038] Another embodiment of the present invention provides the application of the above-mentioned hair growth promoting composite patch in the preparation of hair growth products.

[0039] In another embodiment of the present invention, a hair growth cap is provided to promote hair growth. The hair growth cap includes a cap body and a composite patch for promoting hair growth. The composite patch for promoting hair growth is detachably disposed on the inner surface of the cap body.

[0040] The technical solution of the present invention will be further described in detail below through specific embodiments.

[0041] The raw materials used in the following embodiments are as follows:

[0042] Medical-grade liquid silicone: ELASTOSIL® LR 3011 / 50 FR;

[0043] Platinum acid-vinylsiloxane complex: Vinyl double-ended compounds were mixed with chloroplatinic acid (H₂PtCl₆H₂O) and refluxed at 120°C for 1 hour. After cooling, platinum black was removed, followed by washing with water to remove acid, dehydration, and drying; finally, a platinum acid-vinylsiloxane complex with a platinum mass fraction of 0.15% was obtained.

[0044] Hydrogen-containing silicone oil: Dow Corning DC-1107;

[0045] Example 1

[0046] This embodiment is a composite patch for promoting hair growth, which comprises the following raw materials in parts by weight:

[0047] The ingredients are: 40 parts medical-grade liquid silica gel, 20 parts gelatin, 1 part silane coupling agent, 2 parts far-infrared ceramic powder, 1 part tourmaline powder, 0.5 parts Bianstone powder, and 6 parts neodymium iron boron magnetic powder.

[0048] The preparation method of the above-mentioned hair growth promoting composite patch includes the following steps:

[0049] (a) Dissolve gelatin in deionized water to obtain a 10% gelatin solution; add chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil to medical-grade liquid silica gel and stir at 21°C for 12 min to obtain a silica gel prepolymer solution and store it at low temperature. The amount of chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil added is 1.5% of the amount of medical-grade liquid silica gel; dissolve silane coupling agent in water to obtain a 1.5% silane coupling agent solution; disperse far-infrared ceramic powder, tourmaline powder, Bianstone powder and NdFeB powder in deionized water and then ball mill to obtain an 8% mineral powder dispersion.

[0050] (b) The gelatin solution and the silane coupling agent solution are mixed, then the silica gel prepolymer solution and the mineral powder dispersion are added and mixed, then glycerol is added and mixed evenly to obtain a mixed slurry, wherein the final concentration of glycerol added is 5%;

[0051] (c) Pour a portion of the mixed slurry into a mold and freeze it at -30°C (top layer, 2 mm thick). Then pour a portion of the mixed slurry into the mold and freeze it at -20°C (middle layer, 1 mm thick). Next, pour the remaining mixed slurry into the mold and freeze it at -10°C (bottom layer, 1 mm thick). Then, freeze-dry it at -45°C and 5 Pa for 30 h to obtain a gradient porous composite patch.

[0052] (d) The gradient porous composite patch was placed in a 0.8% genipin solution and subjected to a cross-linking reaction at 28°C for 3 hours. After rinsing and freeze-drying, the hair growth promoting composite patch was obtained.

[0053] Example 2

[0054] This embodiment is a composite patch for promoting hair growth, which comprises the following raw materials in parts by weight:

[0055] The ingredients are: 60 parts medical-grade liquid silica gel, 35 parts gelatin, 2 parts silane coupling agent, 1 part far-infrared ceramic powder, 2 parts tourmaline powder, 1.5 parts Bianstone powder, and 4 parts neodymium iron boron magnetic powder.

[0056] The preparation method of the above-mentioned hair growth promoting composite patch includes the following steps:

[0057] (a) Dissolve gelatin in deionized water to obtain a 15% gelatin solution; add chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil to medical-grade liquid silica gel and stir at 21°C for 12 min to obtain a silica gel prepolymer solution and store it at low temperature. The amount of chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil added is 1.5% of the amount of medical-grade liquid silica gel; dissolve silane coupling agent in water to obtain a 1.5% silane coupling agent solution; disperse far-infrared ceramic powder, tourmaline powder, Bianstone powder and NdFeB powder in deionized water and then ball mill to obtain a 12% mineral powder dispersion.

[0058] (b) The gelatin solution and the silane coupling agent solution are mixed, then the silica gel prepolymer solution and the mineral powder dispersion solution are added and mixed, and then glycerol is added and mixed evenly to obtain a mixed slurry, wherein the final concentration of glycerol added is 2%;

[0059] (c) Pour a portion of the mixed slurry into a mold and freeze it at -25°C (top layer, 2 mm thick). Then pour a portion of the mixed slurry into the mold and freeze it at -15°C (middle layer, 1 mm thick). Next, pour the remaining mixed slurry into the mold and freeze it at -5°C (bottom layer, 1 mm thick). Then, freeze-dry it at -45°C and 5 Pa for 30 h to obtain a gradient porous composite patch.

[0060] (d) The gradient porous composite patch was placed in a 0.8% genipin solution and subjected to a cross-linking reaction at 28°C for 3 hours. After rinsing and freeze-drying, the hair growth promoting composite patch was obtained.

[0061] Example 3

[0062] This embodiment is a composite patch for promoting hair growth, which comprises the following raw materials in parts by weight:

[0063] 50 parts medical-grade liquid silica gel, 30 parts gelatin, 1.5 parts silane coupling agent, 1.5 parts far-infrared ceramic powder, 1.5 parts tourmaline powder, 1 part Bian stone powder, and 5 parts neodymium iron boron magnetic powder.

[0064] The preparation method of the above-mentioned hair growth promoting composite patch includes the following steps:

[0065] (a) Dissolve gelatin in deionized water to obtain a 12% gelatin solution; add chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil to medical-grade liquid silica gel and stir at 21°C for 12 min to obtain a silica gel prepolymer solution and store it at low temperature. The amount of chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil added is 1.5% of the amount of medical-grade liquid silica gel; dissolve silane coupling agent in water to obtain a 1.5% silane coupling agent solution; disperse far-infrared ceramic powder, tourmaline powder, Bianstone powder and NdFeB powder in deionized water and then ball mill to obtain a 10% mineral powder dispersion.

[0066] (b) The gelatin solution and the silane coupling agent solution are mixed, then the silica gel prepolymer solution and the mineral powder dispersion solution are added and mixed, and then glycerol is added and mixed evenly to obtain a mixed slurry, wherein the final concentration of glycerol added is 3%;

[0067] (c) Pour a portion of the mixed slurry into a mold and freeze it at -28°C (top layer, 2 mm thick). Then pour a portion of the mixed slurry into the mold and freeze it at -18°C (middle layer, 1 mm thick). Then pour the remaining mixed slurry into the mold and freeze it at -8°C (bottom layer, 1 mm thick). Subsequently, freeze-dry it at -45°C and 5 Pa for 30 h to obtain a gradient porous composite patch.

[0068] (d) The gradient porous composite patch was placed in a 0.8% genipin solution and subjected to a cross-linking reaction at 28°C for 3 hours. After rinsing and freeze-drying, the hair growth promoting composite patch was obtained.

[0069] Example 4

[0070] This embodiment is a hair growth cap that promotes hair growth. The hair growth cap includes a cap body and a composite patch for promoting hair growth as described in Embodiment 3. The composite patch for promoting hair growth is detachably disposed on the inner surface of the cap body.

[0071] Comparative Example 1

[0072] This comparative example is a composite patch that promotes hair growth. The composite patch that promotes hair growth is basically the same as the composite patch that promotes hair growth in Example 3, except that the gelatin is replaced with an equal amount of medical-grade liquid silicone oil.

[0073] The above-mentioned hair growth promoting composite patch is prepared using the same method as in Example 3.

[0074] Comparative Example 2

[0075] This comparative example is a composite patch that promotes hair growth. The composite patch that promotes hair growth is basically the same as the composite patch that promotes hair growth in Example 3, except that the tourmaline powder is replaced with an equal amount of gelatin.

[0076] The above-mentioned hair growth promoting composite patch is prepared using the same method as in Example 3.

[0077] Comparative Example 3

[0078] This comparative example is a composite patch for promoting hair growth. The composite patch for promoting hair growth is basically the same as the composite patch for promoting hair growth in Example 3, except that the Bianstone powder is replaced with an equal amount of far-infrared ceramic powder.

[0079] The above-mentioned hair growth promoting composite patch is prepared using the same method as in Example 3.

[0080] Comparative Example 4

[0081] This comparative example is a composite patch that promotes hair growth, and the composite patch that promotes hair growth is the same as the composite patch that promotes hair growth in Example 3.

[0082] The preparation method of the above-mentioned hair growth promoting composite patch is basically the same as that in Example 3, except that step (c) involves pouring the mixed slurry into a mold and freezing it at -28°C (thickness 4 mm), and then freeze-drying it at -45°C and 5 Pa for 30 h to obtain a gradient porous composite patch.

[0083] Experimental Example

[0084] 1. Obtain the hair growth-promoting composite patches prepared in Example 3 and Comparative Examples 1-4 respectively;

[0085] The elastic modulus, tensile strength, far-infrared emissivity, static magnetic field strength and surface potential of the above-mentioned hair growth-promoting composite patch were tested in 3 replicates, and the number of pathogens was counted. The test results are shown in Table 1.

[0086] Test method: Prepare standard specimens of 10mm×80mm×4mm and test them according to GB / T 1040.1-2018 "Determination of tensile properties of plastics - Part 1: General". All tests were conducted using a universal testing machine with a tensile rate of 1mm / min and an elastic modulus test range of 0.05%-0.25% strain.

[0087] Far-infrared emissivity: According to GB / T 30127-2013 "Detection and evaluation of far-infrared properties of textiles", a Fourier transform infrared spectrometer (equipped with an integrating sphere accessory) was used. After pretreating the samples for 24 hours at 20±2℃ and 65±4% RH, the 4-14μm band spectrum was scanned, and the emissivity was calculated with blackbody as the reference.

[0088] Static magnetic field strength: According to JJG 1043-2008 "Verification Procedure for DC Magnetometer", a high-precision gaussmeter (accuracy ±0.001T) was used. Five test points were evenly selected on the sample surface to measure the magnetic field strength at a distance of 0.1mm from the scalp contact surface. The average value was taken to obtain the surface static magnetic field strength of 0.06-0.1T.

[0089] Surface potential: The zeta potential of the sample surface was tested using a zeta potential meter in a simulated body fluid environment at 25℃ and pH=7.4.

[0090] Table 1

[0091] Group Elastic modulus (kPa) Tensile strength (MPa) Far-infrared generation rate Static magnetic field strength (T) Surface potential (mV) Example 3 3.72 2.73 0.91 0.08 ﹣9.2 Comparative Example 1 7.56 2.98 0.88 0.07 +1.3 Comparative Example 2 3.64 2.67 0.92 0.07 ﹣6.7 Comparative Example 3 3.68 2.71 0.96 0.08 ﹣8.6 Comparative Example 4 2.83 1.95 0.92 0.09 ﹣9.7

[0092] As shown in Table 1, Example 3 of this application has better mechanical properties and a lower surface potential compared to Comparative Examples 1 and 4.

[0093] 2. Animal experiments:

[0094] Model Construction: Sixty mice aged 6-8 weeks and weighing 20-22g were randomly divided into 6 groups (n=10 per group): Experimental Group 1 (applied with patch 3 of Example), Experimental Group 2 (applied with patch 1 of Comparative Example), Experimental Group 3 (applied with patch 2 of Comparative Example), Experimental Group 4 (applied with patch 3 of Comparative Example), Experimental Group 5 (applied with patch 4 of Comparative Example), and a blank control group. Mice in each group were subcutaneously injected with 5α-dihydrotestosterone (2mg / kg) on ​​their backs daily for 2 weeks to establish a hair loss model. The model validation criterion was a decrease in hair density on the back of the mice by ≥40% compared to before modeling.

[0095] Intervention method: The experimental group was given a hair growth-promoting composite patch for 8 hours daily (applied to the bald area on the back of the mouse), while the blank control group was fed only with routine feeding. All groups were continuously intervened for 4 weeks, during which the same feeding environment was maintained (temperature 22±2℃, humidity 55±5%, 12h light and dark cycle).

[0096] Indicator detection: Before and after the intervention, the hair density in the bald area on the back of the mice was measured using a hair density meter. Three fixed detection areas of 1cm×1cm were marked in the bald area on the back of the mice. The number of hairs in each detection area was collected using a hair density meter (accuracy 0.1 hairs / mm²). The average value of the three areas was taken as the hair density at the corresponding time point. The hair density improvement rate was calculated as (hair density after intervention - hair density before intervention) / hair density before intervention × 100%.

[0097] The experimental results are shown in Table 2:

[0098] Table 2

[0099] Group Hair density increase rate (%) Example 3 78.3 Comparative Example 1 51.8 Comparative Example 2 57.5 Comparative Example 3 61.7 Comparative Example 4 62.3

[0100] As shown in Table 2, the composite patch for promoting hair growth in this application has a better effect than that in comparative examples 1-4.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A composite patch for promoting hair growth, characterized in that, The hair growth promoting composite patch comprises the following raw materials in parts by weight: The ingredients are: 40-60 parts medical-grade liquid silica gel, 20-35 parts gelatin, 1-2 parts silane coupling agent, 1-2 parts far-infrared ceramic powder, 1-2 parts tourmaline powder, 0.5-1.5 parts Bianstone powder, and 4-6 parts neodymium iron boron magnetic powder.

2. The composite patch for promoting hair growth according to claim 1, characterized in that, The hair growth promoting composite patch comprises the following raw materials in parts by weight: 50 parts medical-grade liquid silica gel, 30 parts gelatin, 1.5 parts silane coupling agent, 1.5 parts far-infrared ceramic powder, 1.5 parts tourmaline powder, 1 part Bian stone powder, and 5 parts neodymium iron boron magnetic powder.

3. The composite patch for promoting hair growth according to claim 1, characterized in that, The hair growth promoting composite patch includes a top layer, a middle layer, and a bottom layer with different pore sizes.

4. The method for preparing the hair growth promoting composite patch according to any one of claims 1 to 3, characterized in that, The preparation method includes the following steps: (a) Dissolve gelatin in deionized water to obtain a gelatin solution; add chloroplatinic acid-vinylsiloxane complex and hydrogen-containing silicone oil to medical-grade liquid silica gel and stir at 20~22℃ for 10~15 min to obtain a silica gel prepolymer solution and store it at low temperature; dissolve silane coupling agent in water to obtain a silane coupling agent solution; disperse far-infrared ceramic powder, tourmaline powder, Bianstone powder and NdFeB powder in deionized water and then ball mill to obtain a mineral powder dispersion. (b) Mix the gelatin solution and the silane coupling agent solution, then add the silica gel prepolymer solution and the mineral powder dispersion solution and mix them together. Then add glycerol and mix well to obtain a mixed slurry. (c) Pour a portion of the mixed slurry into a mold and freeze it at -30~-25°C. Then pour a portion of the mixed slurry into the mold and freeze it at -20~-15°C. Then pour the remaining mixed slurry into the mold and freeze it at -10~-5°C. Subsequently, freeze-dry it to obtain a gradient porous composite patch. (d) The gradient porous composite patch is placed in a genipin solution for cross-linking reaction, and then rinsed and freeze-dried to obtain the hair growth promoting composite patch.

5. The preparation method according to claim 4, characterized in that, The concentration of the gelatin solution is 10%~15%; the amount of platinum acid-vinylsiloxane complex and hydrogen-containing silicone oil added is 1%~2% of the amount of medical-grade liquid silica gel; the concentration of the silane coupling agent solution is 1%~2%; and the concentration of the mineral powder dispersion is 8%~12%.

6. The preparation method according to claim 4, characterized in that, The final concentration of the added glycerol is 2% to 5%.

7. The use of the hair growth promoting composite patch according to any one of claims 1 to 3 in the preparation of hair growth products.

8. A hair growth cap that promotes hair growth, characterized in that, The hair growth cap that promotes hair growth includes a cap body and a composite patch for promoting hair growth as described in any one of claims 1 to 3; the composite patch for promoting hair growth is detachably disposed on the inner surface of the cap body.