What is glutathione?
Glutathione is a tripeptide composed of glutamic acid, cysteine, and glycine, containing a sulfhydryl group. It possesses antioxidant and integrative detoxification properties. The sulfhydryl group on cysteine is the active group of glutathione (hence, glutathione is often abbreviated as G-SH). It readily binds to certain drugs (such as paracetamol) and toxins (such as free radicals, iodoacetic acid, mustard gas, and heavy metals such as lead, mercury, and arsenic), thus exerting integrative detoxification effects. Consequently, glutathione (especially in liver cells) can participate in biotransformations, converting harmful toxins into harmless substances for excretion. Glutathione also helps maintain normal immune system function. Glutathione exists in two forms: reduced (G-SH) and oxidized (GSSG). Under physiological conditions, the reduced form predominates. Glutathione reductase catalyzes the interconversion between the two forms. The coenzyme for this enzyme is NADPH, which is provided by the phosphate-sugar bypass pathway.
Sources of glutathione
Glutathione is commonly found in some foods, including fruits and vegetables. A study published in Nutrition and Cancer found that dairy products, cereals, and bread generally contain low levels of GSH, while fruits and vegetables contain moderate or high levels. Freshly cooked meats contain relatively high levels of GSH.
Glutathione dietary supplements and personal care products are sold in various market channels.
While glutathione plays a vital role in our bodies, its effectiveness is thought to be primarily due to its constituent amino acids, cysteine. Other supplements, such as N-acetylcysteine (NAC), can provide the cysteine needed to boost glutathione levels in our bodies, providing a more affordable way to supplement glutathione.
There is not much research on glutathione at present, but according to existing research, increasing the body’s glutathione levels through diet or dietary supplements can help treat and prevent certain diseases.
Glutathione skin lightening supplement benefits
Antioxidant and free radical scavenger
Glutathione plays an important role in the human body’s biochemical defense system and has multiple physiological functions. Its main physiological function is to remove excess free radicals from the human body, thereby delaying skin aging.
Improve the body’s immunity
Glutathione not only eliminates free radicals in the human body, but also improves the body’s immunity. Glutathione can enhance the function of T lymphocytes in the body and promote the synthesis of immunoglobulins, thereby improving the body’s immunity. It can be used to treat certain allergic diseases, such as allergic rhinitis, allergic dermatitis, urticaria, etc.
Detoxification
Glutathione can combine with toxic compounds, heavy metal ions or carcinogens that enter the human body and promote their excretion from the body, playing a neutralizing and detoxifying role.
Anti-aging and whitening
Glutathione can inactivate tyrosinase, inhibit the production of melanin, weaken the biochemical activity and formation of melanocytes, and enhance the effect of vitamin C in the body, thus having a whitening effect.
Anti-allergic
Glutathione can inhibit the allergic mediators released by histamine, thereby alleviating allergic symptoms, helping to improve symptoms such as skin itching and rashes caused by allergic diseases, and can be used for rashes caused by certain allergies.
Radiation protection
Glutathione has a strong protective effect against symptoms such as leukopenia caused by radiation and radioactive drugs.
Protect protein sulfhydryl groups
Glutathione protects the -SH groups in enzyme molecules, facilitating their activity. It can also restore the active function of damaged -SH groups in enzyme molecules, restoring enzyme activity. It can also inhibit fatty liver disease caused by ethanol damage to the liver. Glutathione also protects hemoglobin from oxidation by hydrogen peroxide and free radicals, allowing it to continue to function normally as an oxygen transporter. Human red blood cells contain high levels of glutathione, which is important for protecting the sulfhydryl groups of proteins on the red blood cell membrane in a reduced state and preventing hemolysis.
Best glutathione skin lightening supplement
When choosing a glutathione skin lightening supplement, consider several factors, such as ingredients, product certifications, and brand reputation.
First, prioritize reduced glutathione. Reduced glutathione has high bioavailability and can be directly absorbed by the body, resulting in better whitening and antioxidant effects.
Next, focus on the glutathione composition. High-quality products generally contain additional ingredients, such as vitamin C and ALA.
Finally, consider the reputation of the manufacturer of the glutathione whitening supplement. Prefer brands with third-party product testing reports and GMP certification.
Jiabeikang‘s glutathione whitening supplements carry GMP, HACCP, HALAL, and COA certifications. And we have customizable ingredients and supplement packaging design. Furthermore, Jiabeikang has a sophisticated technical team and a highly absorbable formula that ensures the glutathione reaches the deepest parts of the skin.
What to avoid when taking glutathione
Glutathione plays a key role in the adjuvant treatment of liver disease. Its interaction with some drugs may have adverse consequences, such as vitamin B12, vitamin K3, calcium pantothenate and orotic acid, menadione, as well as antihistamines, sulfonamides and tetracyclines. Therefore, they cannot be used together. Please consult a doctor for specific details.
Vitamin B12, Vitamin K3: Mixed use with glutathione may cause drug interactions, affect the metabolism and absorption of drugs in the body, and thus affect the therapeutic effect.
Calcium pantothenate and orotic acid: When used together with glutathione, they may affect the stability and bioavailability of the drug, thereby reducing the efficacy of the drug.
Menadione: This drug may be used to treat certain diseases under certain circumstances, but its combination with glutathione may have adverse consequences and affect the metabolism and absorption of the drug in the body.
Antihistamines: Antihistamines are a class of drugs commonly used to treat allergic diseases. Their simultaneous use with glutathione may increase the risk of adverse reactions, such as nausea and vomiting.
Sulfonamides and tetracyclines: Interactions with glutathione may result in increased or decreased effects of the drug in the body, negatively impacting treatment effectiveness.
Side effects of glutathione
While taking glutathione tablets, some patients experience side effects, such as allergic reactions, including rashes and itching. In severe cases, these reactions can lead to anaphylactic shock or even death. Gastrointestinal symptoms, such as nausea, vomiting, bloating, and decreased appetite, may also occur. For most patients, these adverse reactions gradually subside and eventually disappear after stopping the medication.
Precautions before using glutathione
Use an appropriate dose and avoid overdose: overdose can cause nausea, vomiting, and in severe cases may damage kidney function;
Pay attention to drug interactions: Glutathione may interact with certain drugs and affect the effects of the drugs, so simultaneous use should be avoided.
Special groups should use with caution: Pregnant women, breastfeeding women, and people with certain medical conditions should consult a doctor before use. Although glutathione is considered a safe ingredient, it has not been fully studied and is not recommended for children under 15 years old, pregnant women, or breastfeeding mothers.
Regular monitoring: During long-term use of glutathione, regular physical examinations should be performed to ensure that the intake is within a safe range and there are no adverse reactions in the body.
FAQ
Before taking glutathione, they often suffered from dull skin, acne scars, and dark spots. After taking glutathione supplements for several months, their skin condition improved. For example, their skin became brighter overall, and dark spots and acne scars were noticeably lighter. This is because glutathione inhibits tyrosinase activity at the source, reducing melanin production. Glutathione’s antioxidant capacity also helps repair skin damage.
After stopping glutathione, your skin may return to a darker color. This depends on your individual constitution. If your skin is already in good condition, some people may experience allergic reactions or temporary fatigue if they stop using it.
Generally, the best time to take glutathione supplements is after a meal, as taking them on an empty stomach may irritate the gastrointestinal tract, causing abdominal discomfort, bloating, and nausea.
Conclusion
In summary: As an antioxidant, glutathione helps the body balance excess free radicals, thereby maintaining our health. It works at the cellular level to prevent infection and other cell damage, thereby playing a role in disease prevention. GSH can be obtained through certain foods and supplements. Of course, it’s important to consult a doctor before taking any new dietary supplements.
