WO2023174379A1

WO2023174379A1 - Method and device for promoting growth of hair

Info

Publication number: WO2023174379A1
Application number: PCT/CN2023/081967
Authority: WO
Inventors: 陈雄伟; 张建超; 张瑞红; 肖莉; 武天中
Original assignee: 爱美客技术发展股份有限公司
Priority date: 2022-03-16
Filing date: 2023-03-16
Publication date: 2023-09-21
Also published as: CN114642538A

Abstract

A method and device for promoting the growth of hair. The method for promoting the growth of hair comprises placing a scalp in a closed environment, introducing gas into the closed environment to lower the oxygen content in the closed environment to below 5%, reducing the temperature of the closed environment to -5-20°C, maintaining the temperature for 1-30 min, increasing the temperature of the closed environment to 15-30°C, and maintaining the temperature for 1-30 min. The device for promoting the growth of hair comprises a helmet (1), a temperature control system (7) and a gas generation assembly (5). According to the device, the temperature can be accurately controlled; hair follicle stem cells of the scalp are effectively activated by means of the synergistic effect of a low-oxygen environment and periodic cooling-heating; the growth of hair is promoted; condensate water generated in the treatment process can be removed; and the wearing comfort is improved.

Description

A method and device for promoting hair growth

Technical field

The present invention relates to the field of beauty, and in particular to a method and device for promoting hair growth.

Background technique

With the accelerated pace of modern life, hair loss has become a common problem that plagues people's lives. The causes of hair loss generally include endocrine disorders, mental factors, genetic factors, immune dysfunction and improper diet. Current treatments include medication, laser treatment, hair transplant surgery, etc. Traditional treatment methods such as drug treatment and oral anti-androgen drugs will have problems such as low efficacy and many adverse reactions. Laser treatment will cause a local feeling of heat, tolerable pain or itching during treatment, and a short period of time after treatment. For local erythema, setting laser treatment parameters at too high an energy level or using too high a frequency may actually worsen hair loss and induce hair follicle fibrosis, and high-energy lasers can also cause local long-term erythema, edema, ulcers and even The production of scars. Hair transplantation surgery is not only expensive, but will also produce inevitable complications, such as pain, swelling, bleeding, infection, etc., and the survival rate of hair follicles is not necessarily high.

Patent document CN111759576A discloses a refrigeration helmet and hair growth method, which prevents the head temperature from rising too high and maintains the head temperature and humidity within a suitable range for the season, but does not perform a periodic regulation of the temperature to activate hair follicle stem cells. Effect.

Patent document CN112932780A discloses a low-temperature hair growth care cap that stimulates hair follicle stem cells with cold to promote hair growth. However, it uses a cold storage bag that cannot accurately regulate the temperature, let alone programmatic control of the temperature.

Patent document CN111956389A discloses an adjustable cooling device for preventing drug-induced hair loss. Cooling gas is sent into the inner cavity through a refrigerator. By changing the temperature and speed of the cooling gas, the temperature is controlled and the cap is realized. At the same time, the drug is atomized through an atomizer and sprayed evenly onto the patient's head. However, this technology can only maintain a constant temperature mode and has limited stimulation of hair follicle stem cells.

Contents of the invention

The invention controls the periodic cooling and heating of the environment around the scalp to stimulate hair follicle stem cells, so that the hair is in a temperature environment suitable for growth and promotes hair growth. At the same time, by inputting non-oxygen gas into the scalp in a closed environment, on the one hand, it can make the scalp surface temperature uniform, on the other hand, it can reduce the oxygen content of the scalp closed environment during cooling, through the synergistic effect of periodic temperature changes and hypoxia. , promotes the growth of hair follicles and is also beneficial to hair growth.

The purpose of the present invention is achieved through the following technical solutions:

The present invention provides a method for promoting hair growth by placing the scalp in a closed environment. Introduce gas to make the oxygen content in the closed environment less than 5%, lower the temperature of the closed environment to -5~20℃, keep it for 1~30min, raise the temperature of the closed environment to 15~30℃, keep it for 1~30min.

Further, the oxygen content is less than 3%, preferably, the oxygen content is less than 1.5%, and more preferably, the oxygen content is less than 1%.

When the scalp is in a lower oxygen concentration environment, it is beneficial to stimulate hair follicles and promote hair growth.

Further, the process of lowering the temperature of the closed environment and raising the temperature of the closed environment can be repeated 2 to 8 times, and the number of repetitions can be 2, 3, 4, 5, 6, 7 or 8 times.

Preferably, the process of lowering the temperature of the closed environment and raising the temperature of the closed environment can be repeated 2 to 3 times.

Further, the temperature reduction rate of the method is 0.1-20°C/min, more preferably 1-10°C/min.

Furthermore, in the method, the steps of introducing gas into the closed environment and lowering the temperature of the closed environment can be performed simultaneously or successively. For example, the gas is introduced and the temperature of the closed environment is reduced at the same time, or the temperature of the closed environment is reduced first and then the gas is introduced, or the gas is introduced first and then the temperature of the closed environment is reduced. Preferably, in the method, the gas is introduced and the temperature of the closed environment is reduced at the same time. The inflow of gas drives the flow of gas in the closed environment where the scalp is located, and achieves a uniform distribution of the temperature of the environment where the scalp is located.

Further, the gas is a non-oxygen gas, including but not limited to one or more of carbon dioxide, hydrogen, nitrogen, helium or argon. Preferably, the gas is carbon dioxide or nitrogen.

Further, the gas is provided by physical means or chemical means. Preferably, the gas can be generated by the contact between the effervescent tablet and water. For example, the effervescent tablet is pressed by mixing sodium bicarbonate and citric acid, and under the condition of contact with water Produce carbon dioxide.

Further, the method further includes removing condensed water in the closed environment to keep the closed environment dry.

Further, in the method, the temperature of the closed environment is reduced to 0-16°C, for example: the temperature of the closed environment is reduced to 0°C, 1°C, 2°C, 3°C, 4°C, 5°C, 6°C, 7°C, 8°C ℃, 9℃, 10℃, 11℃, 12℃, 13℃, 14℃, 15℃, 16℃;

Preferably, the lowered closed environment temperature is 6 to 14°C;

For example, the reduced closed environment temperature may be 6.9-9.3°C, 6.9-13.2°C, 7.2-9°C, 7.2-13.2°C, 7.6-13.2°C, 9.3-11.1°C and 9.3-13.2°C;

Further, the holding time of the low temperature environment is 2 to 20 minutes; preferably, the holding time is 5 to 15 minutes;

For example, the holding time can be 5min, 6min, 7min, 8min, 9min, 10min, 11min, 12min, 13min, 14min and 15min;

Preferably, the elevated ambient temperature is 15-30°C; preferably, the holding time is 2-20 minutes.

For example, the ambient temperature can be increased to 15℃, 16℃, 17℃, 18℃, 19℃, 20℃, 21℃, 22℃, 23℃, 24℃, 25℃, 26℃, 27℃, 28℃, 29℃ and 30℃;

For example, the holding time can be 2min, 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min, 11min, 12min, 13min, 14min, 15min, 16min, 17min, 18min, 19min and 20min;

Furthermore, in the method, the temperature of the closed environment is raised from natural heating, gas heating or heating.

The gas is a non-oxygen gas, including but not limited to one or more of carbon dioxide, hydrogen, nitrogen, helium or argon. Preferably, the gas is carbon dioxide or nitrogen.

The present invention provides a device for promoting hair growth, which is characterized in that the device includes: a helmet, a temperature control system and a gas generating component.

Further, the helmet is provided with a cavity suitable for being worn on the head, and a sealing ring is provided at the bottom of the cavity to keep the scalp in a closed environment;

Further, the helmet is provided with a one-way valve, and the one-way valve is used to eliminate gas in the helmet;

Further, the helmet is provided with a temperature control system for adjusting the temperature inside the helmet;

Preferably, the temperature control system includes a refrigeration component for reducing the temperature inside the helmet;

More preferably, the temperature control system includes a heating component for raising the temperature inside the helmet;

Further, the gas generating component is used to introduce gas into a closed environment; wherein the gas generating component is arranged on the helmet and leads to the inside of the helmet through a gas pipeline, or the gas generating component and the helmet are connected through a gas The pipelines are connected, and the gas pipeline leads to the inside of the helmet.

Furthermore, the device for promoting hair growth also includes a temperature balancing component to make the temperature in the cavity uniform.

Preferably, the temperature equalization component is a thermally conductive mesh or thermally conductive sheet arranged inside the helmet, and the thermally conductive mesh or thermally conductive sheet is connected to the temperature control system; more preferably, the material of the thermally conductive mesh or thermally conductive sheet is selected from the group consisting of: Metal; Particularly preferably, the metal is selected from aluminum, magnesium, iron, copper, gold, silver, nickel or alloys.

Further, the temperature control system includes a refrigeration component, and the refrigeration component is a semiconductor refrigerator; preferably, the number of the semiconductor refrigerators is 1 to 10, and more preferably 1 to 5. The semiconductor refrigerator is installed inside the helmet for cooling, and a fan is used externally to increase the heat dissipation rate. In the embodiment of the present invention, the cavity ambient temperature drops to about 10°C in 15 minutes. Furthermore, the refrigeration components are distributed on both sides and the top of the helmet, so that The temperature in the cavity can be evenly distributed.

Further, the gas generating assembly includes a gas generating chamber, and the gas generating chamber is used for generating gas. In one embodiment, an effervescent tablet and water are placed in the gas generating chamber to generate carbon dioxide gas. In another embodiment, solid carbon dioxide dry ice is placed in the gas generating chamber and the lid is closed. The dry ice generates dioxide by absorbing heat from the environment and sublimes. carbon gas. At this time, gas can be generated in situ, simplifying the structure of the hair growth device, reducing weight, and making it easy to carry.

Further, the device for promoting hair growth further includes a dehumidification component, which is connected to the helmet and used to eliminate condensation water generated when the refrigeration component is working; preferably, the dehumidification component includes a desiccant or an absorbent sponge.

Furthermore, the device for promoting hair growth also includes a temperature sensor, which is arranged on the inside of the helmet to monitor the temperature of the cavity. Furthermore, the inner or outer layer of the device helmet has a thermal insulation layer, and the thermal insulation layer can effectively reduce temperature loss.

Furthermore, the sealing ring provided at the bottom of the cavity is made of elastic material.

Further, the device includes a temperature sensor, which is arranged on the inside of the helmet to monitor the temperature of the internal cavity and provide feedback signals for cavity temperature control and adjustment.

Further, the device may include an oxygen content monitoring display for displaying the monitored oxygen concentration inside the cavity.

Furthermore, the device can be charged or powered by a mobile power source.

The use process of the device for promoting hair growth according to the present invention includes: setting the temperature T1, cooling down, maintaining the low temperature, increasing the setting temperature T2, raising the temperature, and maintaining the setting temperature. To enhance the effect, the above process can be repeated for each treatment.

In some embodiments of the present invention, the use process of the device for promoting hair growth includes: the user puts on a headgear, then puts on a helmet, starts the hair growth device, turns on the low temperature mode, causes the cavity to reach the set temperature T1, and maintains the time t1 ; Turn off the low temperature mode, turn on the heating mode, make the cavity reach the set temperature T2, and maintain the time t2; cycle like this 2 to 4 times.

The T1 is selected from 6 to 14°C, the T2 is selected from 15 to 30°C, and the holding times t1 and t2 are independently selected from 2 to 20 min;

Furthermore, the heating method of the device includes one or a combination of: natural heating, introducing gas from the outside to raise the temperature, heating by a heating component.

Furthermore, the maintenance of the temperature after heating can be controlled by individually adjusting the refrigeration power of the refrigeration component, or the refrigeration component and the heating component can be controlled collaboratively, with the priority being controlled by the refrigeration component individually adjusting the refrigeration power.

In some embodiments of the present invention, the switches of the temperature control component and the gas generating component are provided on the helmet of the device;

And/or, the switches of the temperature control component and the gas generating component can be controlled by the control terminal in a wired or wireless manner.

In some embodiments of the present invention, the first method of constructing the temperature balancing component is a metal thermal conductive sheet connected to the semiconductor refrigerator to achieve uniform temperature distribution through solid heat conduction; the second method uses gas inflow and outflow to drive the gas in the internal cavity of the device Flow, the two methods can be used alone or together.

The invention also provides an application of the device for promoting hair growth in the field of beauty.

Preferably, the beauty treatment includes: preventing and/or treating hair loss and sparse body hair;

More preferably, the hair loss includes: androgenic alopecia, alopecia areata, scarring alopecia, infectious alopecia, congenital alopecia, One or more combinations of physiological alopecia and chemotherapy-induced alopecia. Preferably, the hair loss includes androgenic alopecia and/or hair loss caused by chemotherapy.

Beneficial effects of the present invention:

By periodically regulating the scalp temperature, we first lower the surface temperature of the scalp, shrink capillaries, reduce blood supply to hair follicles, and form short-term hypoxia, then increase the temperature to warm the scalp, further stimulate the scalp through alternating hot and cold, and at the same time combine Reduce the oxygen concentration on the scalp surface, create a continuous low-oxygen environment for hair follicles, stimulate the metabolism of hair follicle stem cells, and its metabolite products are beneficial to increase the activity and lifespan of hair follicle stem cells. Through the synergistic effect of periodic alternations of hot and cold and a low-oxygen environment, the growth of hair follicle stem cells is stimulated, thereby promoting hair growth and hair fixation. Using the method and device of the present invention, treatment is carried out every week for several months, and the density of the user's hair can be greatly increased, thereby achieving the effect of promoting hair growth.

Description of the drawings

Figure 1 is a sectional structural view of the hair growth device;

Figure 2 is a top structural view of the hair growth device;

Legend: 1-helmet, 2-insulation layer, 3-temperature sensor, 4-exhaust one-way valve, 5-gas generating component, 6-dehumidification device, 7-temperature control system, 8-heat conductive mesh, 9-sealing ring .

Figure 3 is an effect diagram before and after using the device in Embodiment 3;

Figure 4 is a diagram of the hair growth effect of Comparative Example 2.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, rather than all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Specific conditions not specified in the examples are usually based on conventional conditions and conditions described in the manual, or conditions recommended by the manufacturer; the materials, components, etc. used can be obtained from commercial sources unless otherwise specified.

It should be noted that similar reference numerals and letters represent similar items in the following figures, therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply what is meant. Refers to devices or elements that must have a specific orientation, be constructed and operate in a specific orientation, and therefore are not to be construed as limiting the scope of the invention. limits.

Furthermore, the terms "horizontal," "vertical," "overhanging," etc. do not imply a requirement that the component be absolutely horizontal or overhanging, but may be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical". It does not mean that the structure must be completely horizontal, but can be slightly tilted.

In the description of the present invention, it should also be noted that, unless otherwise clearly stated and limited, the terms "set", "installation", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments may be combined with each other without conflict.

Example 1

As shown in Figures 1 and 2, the device of the present invention includes a helmet 1 suitable for human body wear. The outer surface of the helmet has an insulation layer 2. The helmet 1 and an elastic sealing ring 9 jointly construct a relatively closed cavity inside; a temperature sensor 3. Collect the internal cavity temperature to provide feedback signals for cavity temperature control and adjustment; effervescent tablets and water are placed in the gas generating component 5 to generate carbon dioxide gas; the one-way valve 4 can discharge excess gas to maintain the normal air pressure of the internal cavity ; The temperature control system 7 is a semiconductor refrigeration module with a refrigeration function; the refrigeration temperature can be set, the refrigeration module is connected to a thin copper mesh, and the thin copper mesh covers the inner surface of the cavity. The dehumidification device 6 is a sponge that absorbs condensed water droplets generated by the semiconductor refrigeration module when the device is running.

Example 2 Experiment on the influence of gas generating components on cavity temperature uniformity

When using the device of Example 1, place an effervescent tablet and water (2 ml) in the gas generating component 5 of the device of Example 1, where the effervescent tablet is commercially available (the main ingredients include citric acid, sodium bicarbonate, lactose , sorbitol, sweet orange powder, vitamin C). Cover the lid, and the effervescent tablets and water will generate carbon dioxide gas. The generated carbon dioxide gas flow will push the gas flow in the cavity inside the device, and the excess gas will be discharged from the one-way valve 4. After the device ran for 5 minutes, the oxygen concentration in the internal cavity was detected and the measured oxygen concentration was 0.9%. When the aforementioned device is started, start the temperature control system 7 at the same time, set the cooling temperature to 10°C, and maintain it for 5 minutes after the temperature stabilizes. The temperature of each point is monitored, with the highest temperature being 10.6℃ and the lowest temperature being 9.5℃.

When using the device of Embodiment 1, the operation is the same as above. The difference is that while the aforementioned temperature control system is started, the gas generating component 5 is closed, and the refrigeration temperature is set to 10°C. After the temperature stabilizes, it is maintained for 5 minutes, and the temperature in the cavity is The temperature is monitored at five points: top center, left center, right center, rear center, and front center. The highest temperature is 13.2°C and the lowest is 7.6°C.

In addition, preferably, when the device of Embodiment 1 is used, solid carbon dioxide dry ice is placed in the gas generating component 5 of the device of Embodiment 1, and the lid is closed. The dry ice generates carbon dioxide gas by absorbing thermal sublimation from the environment, and the generated carbon dioxide gas flow drives the device. The gas in the internal cavity flows, and the excess gas is discharged from the one-way valve 4. After the device ran for 5 minutes, the oxygen concentration in the internal cavity was detected and the measured oxygen concentration was 0.1%, indicating that carbon dioxide gas effectively promoted the flow of internal air and exhausted most of the original air.

When the aforementioned device is started, start the temperature control system 7 at the same time, set the refrigeration temperature to 8°C, and maintain it for 5 minutes after the temperature stabilizes. The temperature at each point is monitored, with the highest temperature being 8.8°C and the lowest temperature being 7.5°C.

When using the device of Embodiment 1, the operation is the same as described above. The difference is that while the temperature control system 7 device is started, the gas generating component 5 is turned off, and the refrigeration temperature is set to 8°C. After the temperature is stabilized, it is maintained for 5 minutes and the cavity is The temperature is monitored at five points at the center of the inner top, left center, right center, rear center, and front center. The highest temperature is 9.3°C and the lowest is 6.9°C.

The above experiments show that the carbon dioxide gas generated in the gas generating component effectively promotes the flow of internal air, exhausts most of the original air, and achieves a low-oxygen environment; at the same time, when the temperature control system is running and the gas generating component is operated at the same time, it can Reduce the temperature difference within the device and make the temperature in the cavity more uniform.

Example 3

After two male patients with symptoms of male alopecia put on the device of Embodiment 1, carbon dioxide dry ice was placed in the gas generating component and the lid was closed. After running for 2 minutes, the oxygen concentration detection result inside the hair growth device is 0.2%, and the set temperature is 8°C. After the displayed temperature drops to the target temperature, it is maintained for 5 minutes. Then the temperature is set to 16°C, and the temperature is maintained after the temperature reaches the set value. For 5 minutes, repeat the above-mentioned cooling-heating cycle twice. Treatment is performed once every Monday, Wednesday and Friday for 6 months. Statistics of hair density in the same area are performed at 0, 4, 5 and 6 months (as shown in Table 1). It can be observed at 6 months Hair density (roots/cm ² ) increased by 37% and 25% respectively. The overall effect of the treatment is shown in Figure 3. From the picture, it can be seen that the exposed scalp is reduced and the hair volume is obviously increased.

Table 1 Count of hair density during treatment

Comparative example 1

Two male patients with symptoms of male pattern baldness put on the device of Embodiment 1 and only turned on the temperature control system without using the gas generating component. The cooling-heating method was carried out as in Example 3. Treatment is performed once every Monday, Wednesday and Friday for 6 months. Statistics of hair density in the same area are performed at 0, 4, 5 and 6 months (as shown in Table 2). It can be observed at 6 months Hair density (roots/cm ² ) increased by 10% and 9% respectively.

Table 2 Count of hair density during treatment

Comparative example 2

After two male patients with symptoms of male alopecia put on the device of Embodiment 1, carbon dioxide dry ice was placed in the gas generating component and the lid was closed. After running for 0.5 minutes, the oxygen concentration detection result inside the hair growth device was 7%. Treatment is performed once every Monday, Wednesday and Friday for 6 months. Statistics of hair density in the same area are made at 0, 4, 5 and 6 months (as shown in Table 3). It can be observed at 6 months Hair density (roots/cm ² ) increased by 16.9% and 9.4% respectively. The usage is shown in Figure 4. Before use (0 days, left picture) and after use (180 days, right picture), it can be seen that the hair growth effect is not obvious.

Table 3 Count of hair density during treatment

The above experimental results show that the method of the present invention regulates the scalp surface temperature by periodically cooling and heating, and stimulates the scalp with hot and cold. It also reduces the oxygen concentration of the surrounding environment, reduces the blood supply to hair follicles, provides continuous low oxygen, affects the metabolism of hair follicle stem cells, and the metabolites are beneficial to increase the activity and lifespan of hair follicle stem cells. Through the synergistic effect of alternating hot and cold and hypoxia, the hair follicle stem cells of the scalp are further stimulated, thereby promoting hair growth and having a hair-fixing effect.

In Comparative Example 1, only simple cooling-heating control is used, which has limited stimulation of hair follicles on the scalp, and the hair growth effect is not ideal; in Comparative Example 2, although systematic cooling-heating control is used, it can stimulate the scalp, but due to the oxygen in the surrounding environment At a higher concentration, hair follicle cells can obtain oxygen from the air. At this time, the metabolic mechanism of hair follicle stem cells is different and the hair follicle stem cells cannot be effectively stimulated. Therefore, the synergistic effect of temperature change and hypoxia cannot be exerted, and the hair growth effect is average. Therefore, compared with the simple cooling-heating control in Comparative Example 1 and the high oxygen-containing environment in Comparative Example 2, the present invention has a more effective hair growth effect.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed in the present invention, implement the technical solutions of the present invention. Equivalent substitutions or changes of the inventive concept thereof shall be included in the protection scope of the present invention.

Claims

A method for promoting hair growth, which is characterized by placing the scalp in a closed environment, introducing gas into the closed environment, making the oxygen content in the closed environment less than 5%, and reducing the temperature of the closed environment to -5~20°C , keep for 1 to 30 minutes, raise the closed environment temperature to 15 to 30°C, and keep for 1 to 30 minutes.
The method of claim 1, wherein the oxygen content is less than 3%, preferably, the oxygen content is less than 1.5%, and more preferably, the oxygen content is less than 1%.
The method according to claim 1, characterized in that the cooling rate for reducing the temperature of the closed environment is 0.1-20°C/min, preferably 1-10°C/min.
The method according to claim 1, characterized in that in the method, the steps of introducing gas into the closed environment and reducing the temperature of the closed environment are performed at the same time or one after another.
The method of claim 1, wherein the gas is selected from one or more of carbon dioxide, hydrogen, nitrogen, helium and argon.
The method according to claim 1, characterized in that the process of lowering the temperature of the closed environment and raising the temperature of the closed environment is repeated 2 to 8 times, preferably 2 to 3 times.
The method according to any one of claims 1 to 6, characterized in that in the method, the temperature of the closed environment is reduced to 0-16°C, preferably, the temperature of the closed environment is reduced to 6-14°C; preferably, The holding time is 2 to 20 minutes, more preferably, the holding time is 5 to 15 minutes; preferably, the closed environment temperature is raised to 20 to 25°C; preferably, the holding time is 2 to 20 minutes.
The method according to claim 1, characterized in that increasing the temperature of the closed environment is selected from the group consisting of natural heating, gas heating or heating.
A device for promoting hair growth, characterized in that the device includes: a helmet, a temperature control system and a gas generating component;

The helmet is provided with a cavity suitable for being worn on the head, and a sealing ring is provided at the bottom of the cavity to keep the scalp in a closed environment;

The helmet is provided with a one-way valve, and the one-way valve is used to eliminate gas in the helmet;

The helmet is provided with a temperature control system;

The gas generating component is used to introduce gas into the closed environment;

Wherein, the gas generating component is arranged on the helmet and leads to the inside of the helmet through a gas pipeline, or the gas generating component is connected to the helmet through a gas pipeline, and the gas pipeline leads to the inside of the helmet.
The device according to claim 9, characterized in that the device further includes a temperature equalization component to make the temperature inside the cavity The temperature is uniform. Preferably, the temperature balancing component is a heat-conducting net or heat-conducting sheet arranged inside the helmet, and the heat-conducting net or heat-conducting sheet is connected to the temperature control system; more preferably, the heat-conducting net or heat-conducting sheet is The material is selected from metals; particularly preferably, the metal is selected from aluminum, magnesium, iron, copper, gold, silver, nickel or alloys.
The device according to claim 9 or 10, characterized in that the temperature control system includes a refrigeration component, and the refrigeration component is a semiconductor refrigerator; preferably, the number of the semiconductor refrigerators is 1 to 10, More preferably, they are 1 to 5.
The device according to claim 9, wherein the gas generating component includes a gas generating chamber, and the gas generating chamber is used for generating gas.
The device according to claim 11, characterized in that the device further includes a dehumidification component, the dehumidification component is connected to the helmet and is used to eliminate condensed water generated when the refrigeration component is working; preferably, the dehumidification component includes Desiccant or absorbent sponge.
The device according to claim 9, characterized in that the device includes a temperature sensor, and the temperature sensor is arranged on the inside of the helmet to monitor the temperature of the cavity.
The application of the device according to any one of claims 9 to 14 in the field of beauty; preferably, the beauty treatment includes: prevention and/or treatment of hair loss and sparse body hair; more preferably, the hair loss includes: androgenic Alopecia and/or hair loss due to chemotherapy.