Glutathione injections are compounded glutathione given by subcutaneous or intramuscular injection, prepared on a prescription for an individual patient. Research explains how glutathione works inside cells, yet evidence in people is limited. FDA’s alert of August 27, 2026 and CDC’s update of September 11, 2026 report illnesses after injections compounded from supplement-grade glutathione.
Swallowed glutathione passes through the gut wall and the liver before it reaches the blood. One oral dose did not significantly raise plasma glutathione in seven healthy volunteers, a 1992 study found, and its authors called systemic availability negligible. Later oral trials reached mixed results, set out in section 2.
An injected dose skips the gut but still crosses one or more membranes to reach the bloodstream. The sections below cover the research and how the injection is given, then compare it with IV (intravenous) glutathione. A section on the 2026 reports shows how a prescriber can confirm the ingredient grade, and the guide closes with sourcing and common questions.
1. What Is a Glutathione Injection?
Glutathione peptide and glutathione name the same molecule, a tripeptide made from three amino acids, glutamate (glutamic acid), cysteine and glycine. Cells build it in two steps, glutamate with cysteine first, then glycine. Concentration is highest in the liver, which also supplies most of the glutathione found in blood plasma.
Synthesis drops with aging and in some conditions, such as diabetes. The injectable form is compounded glutathione prepared under a licensed prescriber’s order as an individualized formulation for a specific patient. Compounded glutathione injections are not FDA-approved and are not reviewed by the FDA for safety or effectiveness.
2. Glutathione Injection Benefits Under Study and Where Evidence Stops
The research areas in this section concern glutathione as a molecule and drug class, and none is an indication for MediVera’s compounded formulations. Cell studies describe these mechanisms in some depth, while clinical evidence in people remains limited. No glutathione drug product in the United States holds FDA approval, CDC states, which leaves compounded injections without approval for any disease or condition.
Each area below notes what kind of study supports it.
- Oxidative stress reduction. Glutathione is used in one of the enzyme reactions that restore used-up (oxidized) vitamin C. Vitamin C then restores vitamin E, so the link between glutathione and vitamin E is indirect. The vitamin C study in the citations used cells from human blood vessel linings.
- Liver detoxification support. Enzymes called glutathione S-transferases, most abundant in the liver, speed up glutathione’s reaction with a wide range of reactive drugs. A lab study with human versions of these enzymes found they may help inactivate reactive breakdown products of the drug clozapine.
- Immune function. In a cell study, the multiplication of lymphocytes (a type of white blood cell) depended directly on how much glutathione was available. A 2000 review found no indication that giving glutathione improves immune function, such as resistance to infection, in healthy people.
- Neurological research. A 1997 paper put forward the hypothesis that nerve cell loss driven by oxidative stress may begin with a decline in glutathione. Glutathione does not cross the blood-brain barrier, a 2000 review notes, so raising brain levels calls for other approaches.
- Skin tone and brightness. In a lab study without living cells, glutathione reduced melanin production in a reaction driven by the enzyme tyrosinase. Section 3 covers that mechanism and the limited evidence in people.
- Mitochondrial function. Mitochondria, small structures inside cells, cannot make glutathione themselves. They import it from the surrounding cell fluid (the cytosol). Inside them, the concentration matches the level in the cytosol, a 2014 review reports.
A 6-month randomized trial in 54 adults found that oral glutathione raised the body’s stores, which fell back to baseline a month after supplements stopped. A 4-week trial in 40 healthy adults disagreed, finding no significant change in glutathione status. Low oral bioavailability (a small share of a swallowed dose reaching the blood) and rapid enzyme breakdown often trouble clinical studies, a 2026 review reports.
3. Glutathione and Skin Pigment, Lab Mechanism and Limited Evidence
How glutathione might affect skin pigment is described in lab studies. In a 2008 cell-free lab study, glutathione cut melanin (skin pigment) production by the enzyme tyrosinase acting on L-DOPA, more so at higher doses. It also kept tyrosinase and L-DOPA from binding, an effect that more L-DOPA reversed.
A 2005 review proposes that glutathione may inactivate tyrosinase directly at its copper-containing active site, or shift production from eumelanin to pheomelanin. Human evidence remains limited, with modest, varied pigment changes in a 2026 review. The same review judged it too limited to justify routine cosmetic use for skin tone.
For skin, as for any other use, CDC states that no glutathione drug product in the United States is approved by the FDA. MediVera describes its dermatology compounding services for prescribers on a separate page. Any use of glutathione for skin pigment is the prescriber’s decision for the individual patient.
4. Glutathione IV vs Injection and How the Routes Differ
The 2026 CDC reports name three routes for glutathione, into a vein (intravenous, or IV), under the skin (subcutaneous) or into a muscle (intramuscular). The comparison below covers dose placement, entry into the blood and absorption. General medical references supply the first three rows, with CDC’s 2026 glutathione reports behind the last two.
| Route detail | IV glutathione | Subcutaneous or intramuscular glutathione |
|---|---|---|
| Where the dose goes | Into a vein | Under the skin into fatty tissue, or into a muscle |
| How it reaches the blood | Delivered to the bloodstream immediately | Crosses one or more membranes first |
| What affects absorption | Enters the circulation directly | Blood flow at the injection site |
| Named in CDC’s 2026 reports | Yes, all three hospitalized patients received it | Yes, both routes named by CDC |
| Prescription status | Compounded, with no glutathione drug product approved by the FDA | Compounded on prescription, with no approved glutathione drug product |
An IV dose reaches the bloodstream immediately, while subcutaneous and intramuscular doses must first cross one or more membranes. Blood flow at the injection site affects how fast those doses are absorbed. Larger volumes favor the intramuscular route, the Merck Manual notes.
Route choice is the prescriber’s decision, and the glutathione injection product page gives the formulation and dosing details prescribers look for. All three hospitalized patients received IV glutathione, according to CDC’s September 11, 2026 update. FDA’s August 27, 2026 alert counted at least 30 patients with adverse events after IV glutathione.
5. The 2026 Adverse-Event Reports and Glutathione Ingredient Grade
In its situation update on injectable glutathione, dated September 11, 2026, CDC reported more than 25 people sick in at least four states. At least three were hospitalized, and one critically ill patient needed intensive care for shock and abnormal clotting. Patients had received glutathione into a vein, under the skin or into a muscle.
So far, CDC says, every injection linked to the illnesses was made by a compounding pharmacy using glutathione ingredients intended for dietary supplements. The illnesses are likely linked to elevated endotoxin levels in the products, according to CDC, and endotoxins are harmful substances made by certain bacteria. At least three Texas pharmacies have recalled compounded injectable glutathione over high endotoxin levels.
FDA’s alert of August 27, 2026 on supplement-grade glutathione counted at least 30 patients with adverse events after IV glutathione, some of them hospitalized. Reported reactions ran from fever, chills, pain and dizziness to signs of shock and sepsis-like symptoms. FDA states dietary supplement-grade glutathione is not an appropriate ingredient for injectable drugs, and compounders are responsible for using components suited to injection.
Endotoxin-contaminated glutathione injections have made groups of patients ill before, CDC notes. FDA had already warned about dietary-ingredient glutathione in injectable compounding in 2019, a concern its 2026 alert says the agency still holds. CDC describes its investigation as ongoing, and the number of people and states affected may change.
Ingredient grade checks
CDC and FDA give prescribers two checks, and the third item is a pharmacy record a prescriber can ask about.
- Confirmation from the compounding pharmacy that the glutathione was compounded with ingredients intended for injection, which CDC advises providers to obtain.
- The source of the glutathione used in the injectable, which FDA recommends health care professionals check with their compounder.
- Whether the pharmacy keeps a current, complete certificate of analysis for each ingredient lot, including bacterial endotoxin, as CDC tells compounding pharmacies to do.
6. Glutathione Injection Near Me Starts With the Pharmacy’s State License
For sourcing compounded glutathione, a pharmacy’s license in the patient’s state is one of several checks. MediVera Compounding Pharmacy™ is licensed in 49+ states and Washington D.C. Prescribers can review its longevity compounding services, and most compounds ship within 48 hours of the pharmacy receiving a complete, valid prescription.
A prescriber comparing compounding pharmacies can weigh four criteria. Licensure in the patient’s state comes first, with PCAB accreditation and third-party testing after it. The fourth is the ingredient check from section 5, confirming the glutathione was compounded with ingredients intended for injection.
7. Compounded Glutathione Injection Quality Standards at MediVera
MediVera reports that it holds PCAB accreditation in both sterile and non-sterile compounding, a pairing it says fewer than 1% of pharmacies hold. Its facility, MediVera says, meets USP 797 for sterile work, plus USP 795 and 800. The facility in Troy, Michigan covers 56,000 sq ft and opened in 2025.
MediVera’s website lists the controls below, some in its quality and compliance documentation and others on its about page.
- Multiple clean rooms certified to ISO 7 in the facility.
- Hoods on every sterile bench that comply with ISO 5.
- Third-party testing protocols for potency, sterility and endotoxin, run by accredited outside laboratories and described for MediVera’s compounded medications in general.
Each month, MediVera reports, $60K+ goes into third-party testing. Testing alone should not be relied on to judge a compounded drug’s quality, CDC told compounding pharmacies in its September 11, 2026 update. Its recommendation is to build quality into every step, consistent with USP 797.
MediVera keeps a separate page for prescribing providers. A prescriber weighing compounding pharmacies can read it alongside the sourcing criteria in section 6 and the ingredient-grade checks in section 5.
Glutathione injections require a prescription from a licensed provider. MediVera dispenses compounded glutathione formulations by prescription only, as individualized preparations for specific patients. Prescribers ready to review formulation and dosing details for a patient can open the glutathione injection product page.
Common Questions About Glutathione Injections
What is a glutathione injection good for?
Glutathione injections have no approved use, so what they might be good for is a research question about the molecule. Studies look at vitamin C recycling, immune cells and liver enzymes that join glutathione to reactive drugs. The enzymes are most abundant in the liver but occur in most cells, a 1980 review notes, and none of this research establishes an indication.
How quickly does injectable glutathione work?
There is no set timeline. Response to compounded glutathione varies among patients, according to MediVera’s product page, which gives no onset time. Large randomized controlled studies are missing too, the page adds, and none of the studies cited here reports an onset time.
What is the downside of taking glutathione?
Downsides include reported side effects, emerging safety questions about IV use and the high endotoxin levels CDC likely linked to the 2026 illnesses. MediVera’s product page lists injection-site reactions, headache, nausea and diarrhea, plus rare hypersensitivity reactions. Liver toxicity, hypersensitivity and possible kidney and endocrine effects may complicate the balance of risk and benefit for IV glutathione, a 2026 review says.
Who cannot take glutathione injections?
MediVera’s product page advises avoiding use during pregnancy and lactation, since safety data for those groups are limited. It also advises caution in patients with asthma, sulfite sensitivity or a known allergy to glutathione or any formulation component. Inhaled glutathione narrowed the airways in a small 1997 trial of eight people with mild asthma, and the authors tied the effect to sulfite.
What is glutathione peptide?
Glutathione peptide is another name for glutathione itself, which is a tripeptide, a chain of three amino acids. NIH’s PubChem database describes it as glutamic acid attached through its side chain to cysteinylglycine, a linked pair of cysteine and glycine. The term refers to the same molecule present in all mammalian tissues.
Are glutathione injections FDA-approved?
No, glutathione injections are not approved by the FDA. CDC states that no glutathione drug product in the United States has FDA approval and that injectable glutathione is a compounded medication. Injectable glutathione is not approved by the FDA for any indication, MediVera’s product page adds.
Is a glutathione injection given subcutaneously or intramuscularly?
Both routes are listed on MediVera’s product page, leaving the choice to the prescriber. A subcutaneous dose goes into the fatty tissue just under the skin, the layer an intramuscular dose passes through to reach muscle. Reaching the muscle takes a longer needle.
What reactions should providers watch for after a glutathione injection?
For the 2026 endotoxin events, CDC asks providers to watch for fever, chills and muscle pain during or after injectable glutathione, plus nausea and vomiting. Its list adds low blood pressure, a fast heart rate and injection-site reactions. Reactions like these can be severe and may need emergency care, CDC warns, and tells patients with symptoms to contact their provider without delay.
Citations
Oxidative stress reduction
- Glutathione (Reduced) – Oxidative Stress & Antioxidant Status. HealthMatters.io https://healthmatters.io/understand-blood-test-results/glutathione-reduced
- Vitamin C Is an Essential Antioxidant That Enhances Survival of Oxidatively Stressed Human Vascular Endothelial Cells in the Presence of a Vast Molar Excess of Glutathione. Journal of Biological Chemistry, 2007. https://www.jbc.org/article/S0021-9258(20)87425-0/fulltext
Liver detoxification support
- Physiological significance of glutathione S-transferases. PubMed PMID: 7446736 https://pubmed.ncbi.nlm.nih.gov/7446736/
- Role of human glutathione S-transferases in the inactivation of reactive metabolites of clozapine. PubMed PMID: 20849150 https://pubmed.ncbi.nlm.nih.gov/20849150/
Immune function
- Lymphocyte proliferation in glutathione-depleted lymphocytes: direct relationship between glutathione availability and the proliferative response. PubMed PMID: 2575086 https://pubmed.ncbi.nlm.nih.gov/2575086/
- Glutathione and immune function. PubMed PMID: 11115795 https://pubmed.ncbi.nlm.nih.gov/11115795/
Neurological research
- Glutathione, oxidative stress and neurodegeneration. PubMed PMID: 10931172 https://pubmed.ncbi.nlm.nih.gov/10931172/
- Neurodegenerative disorders in humans: the role of glutathione in oxidative stress-mediated neuronal death. PubMed PMID: 9495562 https://pubmed.ncbi.nlm.nih.gov/9495562/
Skin tone and brightness
- Glutathione as a depigmenting agent: an overview. International Journal of Cosmetic Science, 2005. https://onlinelibrary.wiley.com/doi/10.1111/j.1467-2494.2005.00235.x
- Inhibitory mechanism of melanin synthesis by glutathione. PubMed PMID: 18670186 https://pubmed.ncbi.nlm.nih.gov/18670186/
Mitochondrial function
- Mitochondrial glutathione: features, regulation and role in disease. PubMed PMID: 23123815 https://pubmed.ncbi.nlm.nih.gov/23123815/
- Glutathione and mitochondria. PubMed PMID: 25024695 https://pubmed.ncbi.nlm.nih.gov/25024695/
This article is for informational purposes only and is not medical advice. Always consult a healthcare professional before starting any treatment. Compounded medications referenced are not reviewed by the FDA for safety or effectiveness and are prepared by prescription for individual patients. Providers are solely responsible for determining their appropriateness.
MV
MediVera MediVera Compounding Pharmacy
