FAQ Zone | Core Q&As on Hydrogen, Red Light, Products & Our Company

Basic Knowledge Of Hydrogen

How to Choose Hydrogen Products

Basic Knowledge of Red Light

How to Choose Red Light Products

About Our Company

1. What is molecular hydrogen?

Molecular hydrogen (H₂) is a diatomic molecule composed of two hydrogen atoms. It is the smallest and lightest molecule in nature. Under standard conditions, it exists as a colorless, tasteless, and odorless gas, with relatively stable chemical properties.

2. What is the difference between molecular hydrogen and the hydrogen element we usually refer to?

The hydrogen element is a general term for a class of atoms with one proton, and it is one of the basic elements that make up matter. Molecular hydrogen, on the other hand, is a specific form of matter formed by two hydrogen atoms bonded through a covalent bond. It is one of the existing forms of the hydrogen element. The relationship between the two is that of an element and a specific substance composed of that element.

3. Does molecular hydrogen exist in nature? Where is it mainly found?

Molecular hydrogen exists in nature, but its content is relatively low. It is mainly found in gases released near volcanic craters, certain natural mineral waters (such as hydrogen-rich spring water), gases released from deep-sea hydrothermal vents, and the atmosphere (in extremely small amounts, approximately 0.5 ppm), among other places.

4. What exactly does hydrogen therapy refer to?

Hydrogen therapy refers to a method that introduces molecular hydrogen into the human body through certain means and utilizes the properties of molecular hydrogen to assist in improving physical conditions and promoting health. Common methods include drinking hydrogen-rich water, inhaling hydrogen gas, and applying hydrogen-rich products to the skin.

5. Is hydrogen therapy a recent development? How long is its development history?

Hydrogen therapy is not a recent development. Its research can be traced back to the 1970s. In 1975, a study found that high-pressure hydrogen could be used to treat cutaneous squamous cell carcinoma. In 2007, Japanese researchers discovered that low-concentration hydrogen has selective antioxidant effects. Since then, research on hydrogen therapy has gradually increased, and its applications have also developed progressively.

6. Can molecular hydrogen be absorbed by the human body?

Yes, it can. Due to its small molecular size, molecular hydrogen has good permeability. It can enter the human body through multiple pathways such as the digestive tract, respiratory tract, and skin, and can quickly diffuse to various tissues and organs in the body, including passing through the blood-brain barrier to enter the brain tissue.

7. Is the

Yes, they are the same substance, both being molecular hydrogen (H₂). However, the hydrogen used in hydrogen therapy has extremely high purity requirements, usually needing to reach 99.99% or higher, and impurities (such as oxygen, carbon monoxide, etc.) must be removed to ensure safe use. In contrast, the hydrogen in ordinary hydrogen cylinders may not meet the purity and impurity content standards for hydrogen therapy due to different application purposes.

8. What is hydrogen-rich water? What is the difference between it and ordinary water?

Hydrogen-rich water refers to water in which a certain concentration of molecular hydrogen is dissolved. Ordinary water contains almost no molecular hydrogen, while hydrogen-rich water contains molecular hydrogen that can be absorbed and utilized by the human body. There is little difference between the two in terms of appearance and taste, but the core difference lies in whether they contain bioactive molecular hydrogen.

9. What is the molecular weight of molecular hydrogen? How does this affect its role in the human body?

The molecular weight of molecular hydrogen is 2 (the relative atomic mass of a hydrogen atom is 1, so the relative molecular mass of a molecule composed of two hydrogen atoms is 2). Due to its extremely small molecular weight, molecular hydrogen has strong penetrability. It can quickly pass through cell membranes to enter cells, and even enter subcellular structures such as mitochondria and cell nuclei, thereby exerting its physiological effects more effectively.

10. Does hydrogen therapy fall under the category of alternative medicine or modern medicine?

Currently, hydrogen therapy is mostly in the stage of auxiliary medicine and research. It does not fully belong to the traditional category of alternative medicine, nor has it yet become a mature standard treatment method in modern medicine. However, with the continuous deepening of relevant research, its application potential in the field of modern medicine is gradually being explored, and it is expected to become an important means of auxiliary treatment for certain diseases in the future.

11. Why can molecular hydrogen have an impact on the human body? What is its core mechanism of action?

The core mechanism behind molecular hydrogen's impact on the human body lies primarily in its selective antioxidant effect. It can specifically scavenge highly toxic reactive oxygen species (ROS) in the human body, such as hydroxyl radicals (・OH) and peroxynitrite anions (ONOO⁻), while having little effect on ROS that play physiological roles in the human body (e.g., superoxide anions O₂⁻, hydrogen peroxide H₂O₂). This helps maintain the body's redox balance and reduce oxidative stress damage.

12. Besides antioxidation, does molecular hydrogen have other mechanisms of action?

In addition to selective antioxidation, molecular hydrogen also exerts effects through mechanisms such as anti-inflammation, regulation of cell signaling pathways, protection of mitochondrial function, and regulation of gene expression. For example, it can alleviate inflammatory responses by inhibiting the release of inflammatory factors (e.g., tumor necrosis factor-α, interleukin-6); it can also regulate signaling pathways related to cell apoptosis and proliferation to protect cells from damage.

13. What is the process of molecular hydrogen scavenging free radicals? Does it produce harmful substances?

The process of molecular hydrogen scavenging free radicals is achieved through redox reactions. Taking the scavenging of hydroxyl radicals as an example: molecular hydrogen (H₂) reacts with hydroxyl radicals (・OH) to generate water (H₂O) and hydrogen atoms (・H). The hydrogen atoms can further combine with other hydroxyl radicals to form water. The entire reaction process is mild, and the final product is water, which is harmless to the human body—no other harmful substances are produced.

Why is the antioxidant effect of molecular hydrogen described as

The antioxidant effect of molecular hydrogen is "selective" because it only scavenges highly toxic ROS in the human body (e.g., hydroxyl radicals, peroxynitrite anions) that cause severe cell damage, while having no significant scavenging effect on ROS involved in normal cellular physiological metabolism (e.g., immune defense, signal transduction), such as superoxide anions and hydrogen peroxide. The significance of this selectivity is that it can reduce the damage to the body caused by oxidative stress without interfering with the normal physiological functions of cells, thus avoiding the side effects that non-selective antioxidants may bring.

15. What effect does molecular hydrogen have on cell mitochondria? What are the benefits of improved mitochondrial function for human health?

Molecular hydrogen can protect mitochondrial function by reducing oxidative stress damage to mitochondria, maintaining the stability of mitochondrial membrane potential, and promoting the production of mitochondrial ATP (adenosine triphosphate, the "energy currency" of cells). Improved mitochondrial function offers numerous benefits for human health: it provides sufficient energy for cells to maintain normal physiological activities of the body; delays cell aging and reduces aging-related diseases caused by decreased mitochondrial function (e.g., neurodegenerative diseases, cardiovascular diseases); and enhances the body's immunity to improve its ability to resist diseases.

16. How does molecular hydrogen regulate inflammatory responses? For which inflammation-related diseases may it be beneficial?

Molecular hydrogen regulates inflammatory responses mainly through the following ways: Scavenging a large amount of toxic reactive oxygen species produced during inflammation, thereby reducing the induction and exacerbation of inflammation by oxidative stress; Inhibiting the activation and infiltration of inflammatory cells (e.g., macrophages, neutrophils); Reducing the gene expression and protein release of inflammatory factors (e.g., tumor necrosis factor-α, interleukin-1β, interleukin-6). Based on this, molecular hydrogen may be beneficial for a variety of inflammation-related diseases, such as rheumatoid arthritis, ulcerative colitis, pneumonia, and prostatitis.

17. Can molecular hydrogen affect gene expression? Which types of genes does it mainly influence?

Yes, it can. Molecular hydrogen can affect gene expression by regulating intracellular signaling pathways (e.g., NF-κB signaling pathway, Nrf2 signaling pathway). It mainly influences genes related to oxidative stress, inflammatory responses, cell apoptosis, cell proliferation, and metabolism. For example, it can upregulate the expression of genes related to antioxidant enzymes (e.g., superoxide dismutase, glutathione peroxidase) to enhance the body's antioxidant capacity; it can also downregulate the expression of genes related to inflammatory factors to alleviate inflammatory responses.

18. In what specific aspects does molecular hydrogen exhibit strong penetrability? What advantages does this bring to its functional performance?

The strong penetrability of molecular hydrogen is specifically reflected in the following aspects: it can quickly pass through the gastrointestinal mucosa to enter the bloodstream; it can cross the blood-brain barrier to act on brain tissue; it can penetrate cell membranes to enter subcellular structures such as mitochondria and cell nuclei; it can also penetrate the skin to enter subcutaneous tissues and the bloodstream. The advantage of this strong penetrability is that molecular hydrogen can quickly reach various lesion sites and inside cells in the body, directly acting on the source of damage (e.g., free radicals produced by mitochondria, abnormally expressed genes in the cell nucleus), thereby exerting its physiological effects more efficiently.

19. What are the unique characteristics of molecular hydrogen compared to other antioxidants (such as vitamin C, vitamin E, and glutathione)?

Compared with other antioxidants, the unique characteristics of molecular hydrogen are mainly as follows:
1. Small molecular size and strong penetrability: It can enter subcellular structures (such as mitochondria and cell nuclei) that are difficult for other antioxidants to reach.
2. Selective antioxidant effect: It only scavenges toxic reactive oxygen species (ROS) without affecting beneficial reactive oxygen species.
3. Mild action: Its reaction product is water, with no side effects.
4. No generation of potentially toxic oxidation products: Unlike antioxidants such as vitamin C and vitamin E, which may produce potentially toxic oxidation products after exerting their effects, molecular hydrogen does not have this issue. Moreover, it does not require the body to consume energy for regeneration.

20. For the improvement of oxidative stress-related diseases, does molecular hydrogen act by directly treating the disease itself or relieving symptoms?

The improvement effect of molecular hydrogen on oxidative stress-related diseases includes both relieving disease symptoms and, to a certain extent, exerting a positive impact on the disease itself. On one hand, by scavenging free radicals and reducing inflammatory responses, it can directly alleviate symptoms caused by diseases, such as pain, swelling, and functional impairment. On the other hand, it can protect cells from oxidative stress damage, improve cellular metabolism and function, delay disease progression, and even promote the repair of damaged cells in some cases, thereby exerting an auxiliary therapeutic effect on the disease itself. However, it cannot replace standard treatment methods such as drugs.

What is Red Light？

Red light is a type of light visible to the human eye, typically ranging from $620$ to $750$ nanometers (nm) in wavelength. It's often used in therapy due to its ability to be absorbed by the mitochondria in cells, potentially stimulating energy production.

What is the primary mechanism of action for Red Light Therapy？

The primary mechanism is thought to be the absorption of red light photons by cytochrome c oxidase (CCO) in the mitochondria. This absorption helps increase adenosine triphosphate (ATP) production (cellular energy), reduce oxidative stress, and improve cell signaling.

What are the common applications of Red Light Therapy？

Common applications include promoting skin health (e.g., reducing wrinkles, improving collagen density), accelerating wound healing, reducing pain and inflammation in joints and muscles, and improving muscle recovery.

What is the difference between Red Light and Near-Infrared Light？

Red light ($620-750$ nm) is more readily absorbed by the skin surface, making it ideal for topical skin issues. Near-Infrared Light (NIR) ($780-1100$ nm) penetrates deeper into tissues (muscles, nerves, bone), making it better for deeper pain relief and recovery.

Is Red Light Therapy safe for the eyes？

While red light is generally safe, direct, prolonged exposure to high-intensity red light sources can potentially be harmful. Protective eyewear is generally recommended, especially when using high-powered devices, to avoid discomfort or retinal damage.

How do I choose the correct wavelength for my intended use？

Different wavelengths target different biological effects. For deep tissue issues (pain, muscle recovery), choose products combining Red (630-670 nm) and Near-Infrared (NIR) (800-880 nm), like 660 nm + 850 nm. For superficial skin issues (collagen, fine lines), wavelengths in the 630-670 nm range are sufficient. Note: Yellow and Green lights are typically used for specific cosmetic targets (pigmentation, redness).

Why are both Continuous Wave (CW) and Pulsed Wave (PW) modes important？

Continuous Wave (CW) mode provides steady energy for consistent effect. Pulsed Wave (PW) mode delivers light in short bursts, which some studies suggest can be more effective for certain conditions (like pain reduction) and may prevent tissue overheating. A quality product should offer both control functions for versatility.

What is "Irradiance" and why is sufficient power important？

Irradiance (often measured in $text{mW}/text{cm}^2$) is the light power density delivered to the treatment area. Sufficient and reliable irradiance is crucial because low power may not deliver the necessary therapeutic dose (Joules/$text{cm}^2$) in a practical timeframe, leading to ineffective treatment. Look for verified power output data from the supplier.

How do I assess a potential manufacturer or factory？

Focus on stability and expertise. A minimum of 5 years of production experience in photon therapy or medical devices suggests manufacturing maturity, stable quality control processes, and a better understanding of regulatory requirements (critical for B2B foreign trade). Request certifications (ISO 13485, CE},FDA) and check their R&D capability

What are the key regulatory certifications I should look for when sourcing Red Light products？

The required certifications depend on the target market. Essential ones include: CE Mark (for the European Economic Area), FDA Registration/Clearance (for the US market), and compliance with quality management systems like ISO 13485 (Medical devices). These certify that the factory meets international safety and quality standards.

What is the company's core focus and establishment history？

Shenzhen Guangyang Zhongkang Technology Co., Ltd. was established in $text{2013}$ and specializes in the research and development, production, and sales of rehabilitation medical devices. Their product lines include phototherapy, oxyhydrogen, and physiotherapy devices.

Which international certifications and quality systems does the company hold？

The company holds authoritative international certifications critical for global trade, including Medical CE, FDA, PSE, UL, and FCC. They also operate under the quality management standard of the ISO 13485 system, which is essential for medical device manufacturing.

What kind of partnership services does the company offer to B-end clients？

The company provides customized OEM services, offering more than 100 high-quality OEM models for over 40 countries and regions. They are committed to helping customers achieve market differentiation and aim for long-term sustainable cooperation.

FAQ Zone | Core Q&As on Hydrogen, Red Light, Products & Our Company

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