Glutathione Injections: Benefits, Side Effects and the August 2026 FDA Alert

The short answer

Glutathione injections are compounded and not FDA-approved, and the evidence that they do more than oral glutathione is thin. In August 2026, FDA reported at least 30 patients with fever, chills and shock-like reactions after IV glutathione made from a dietary-supplement-grade ingredient. Before you buy, ask your provider which pharmacy makes it and what grade of ingredient it uses.

What does the August 2026 FDA alert say?

On August 27, 2026, FDA reminded compounding pharmacies not to use dietary-supplement-grade glutathione to make injectable drugs¹. The main points:

• •At least 30 patients had adverse events after receiving intravenous glutathione. Reported symptoms included fever, chills, pain, dizziness, signs of shock and sepsis-like symptoms, and some patients were hospitalized.
• •The glutathione was made by several different compounding pharmacies, all of which bought the ingredient from Medisca Inc., lot #229536. That lot was labeled as dietary supplement grade, which FDA says is not appropriate for making injectable drugs.
• •FDA says the symptoms are consistent with exposure to excessive endotoxin, a toxin from bacterial cell walls that can cause fever and shock when injected.
• •Medisca told FDA on August 20, 2026, that it had warned its U.S. customers not to use that glutathione. FDA is aware of two Texas pharmacies that have recalled products over elevated endotoxin levels.
• •FDA's instruction: compounders holding this ingredient should tell their customers to stop using the IV glutathione product, and health care professionals should check with their compounder about where its glutathione comes from¹.

This has happened before. In 2019, FDA reported seven patients at one clinic who developed nausea, vomiting, chills and body aches within minutes of IV glutathione, with one hospitalized. FDA testing found endotoxin levels up to five times the appropriate limit in powder labeled "Caution: Dietary Supplement"².

How do you ask a provider which pharmacy and grade it uses?

You do not need to judge endotoxin yourself. You need four answers, in writing:

1. 1.Which pharmacy compounds my glutathione, and where is it licensed? A provider that will not name the pharmacy is a red flag.
2. 2.Is it a 503A or 503B pharmacy? Both are legal. 503B outsourcing facilities follow federal manufacturing standards and are inspected by FDA.
3. 3.What grade is the glutathione, and who supplied it? The answer you want is a pharmaceutical-grade ingredient made for injection, not a dietary supplement ingredient.
4. 4.Was any of my product made from Medisca lot #229536? If you received IV glutathione this summer and had a fever or chills afterward, tell your clinician and report it to FDA's MedWatch program.

Our provider ranking gives credit to providers that name their pharmacy, because this is the question that matters when an alert like this comes out.

What do glutathione injections claim, and what is measured?

Glutathione is an antioxidant your body makes from three amino acids. Clinics sell it for energy, detox, immunity, skin brightening and "cellular aging." The evidence by route is uneven, and the route that costs the most has the least behind it.

Oral glutathione raises body stores. In a six-month randomized trial of 54 adults, 1,000 mg a day raised glutathione by 30–35% in red blood cells, plasma and lymphocytes. Levels went back to baseline within a month of stopping³. A small one-month pilot study of liposomal oral glutathione in 12 adults found similar increases. That study was funded by a company that sells the product⁴.

IV glutathione has very little controlled evidence. The best-known randomized trial gave 1,400 mg IV three times a week for four weeks to 21 people with Parkinson's disease. It found no significant difference from placebo, though the drug was well tolerated⁵. For skin lightening, the main reason IV glutathione is popular, a 2026 review found only limited evidence of modest, inconsistent effects in small studies. It also noted that vitamin C is often given alongside, making the effect of glutathione alone hard to measure⁶.

At-home injections under the skin or into muscle, which is how most telehealth programs sell glutathione, have no published outcome trial that we know of.

For aging specifically, there is no human trial showing that glutathione injections by any route slow aging or extend life.

What are the side effects of glutathione injections?

Glutathione itself was well tolerated in controlled trials, by mouth and by IV³⁵. The serious risks come from the product and the setting more than from the molecule:

• •Endotoxin reactions. Fever, chills, a drop in blood pressure and shock-like symptoms soon after an IV dose, the pattern in both FDA alerts¹².
• •Severe inflammatory reactions after high-dose IV. A 2025 case report described a woman who developed shock, a fever above 41°C (about 106°F), liver injury and blood-clotting problems within an hour of a high-dose glutathione infusion for skin lightening. She had been eating very little while self-administering tirzepatide. She recovered, and the authors suspected contamination or an effect of very high doses in an undernourished patient⁷.
• •Liver, allergic, kidney and hormonal effects. The 2026 review lists liver injury, hypersensitivity reactions and possible kidney and endocrine effects as emerging concerns with IV glutathione⁶.
• •Injection-site reactions with at-home shots, as with any injectable.

If you get fever, chills, dizziness or trouble breathing after a dose, seek care and tell the clinician what you were given.

Who should be careful with glutathione injections?

The trials were small and excluded many groups, so ask your prescriber first if any of these apply:

• •You are pregnant or breastfeeding. Glutathione injections have not been studied for safety in pregnancy or breastfeeding.
• •You have liver or kidney disease. The 2026 review lists liver injury and possible kidney effects among the emerging concerns with IV glutathione⁶.
• •You are eating very little, for example while on a GLP-1. The 2025 case report involved a patient with prolonged low food intake on tirzepatide⁷.
• •You have a history of allergic reactions to injections. Hypersensitivity is one of the concerns the review lists⁶.
• •You are considering an IV drip at a spa or mobile service. Both FDA alerts involved IV products. A clinic that cannot name its pharmacy cannot answer the question FDA asked clinicians to ask.

Is glutathione FDA-approved, and can pharmacies compound it?

There is no FDA-approved glutathione drug in the U.S. Glutathione appears on FDA's "Category 1" list of ingredients nominated for 503A compounding that are still under evaluation (May 2026 update)⁸. Under FDA's interim policy, 503A pharmacies can keep using a Category 1 ingredient while FDA decides, provided they meet the policy's conditions⁹. That is a pending status, not an approval. FDA's general position applies too: compounded drugs are not FDA-approved and are not checked for safety, effectiveness or quality before sale¹⁰.

What do glutathione injections cost?

Prices below come from each seller's own public website, as shown on our provider ranking. Sorted by price, not by quality.

Realistic month-to-month cost runs from about $79 to $275. Glutathione is often sold alongside NAD+. For that drug's evidence and pricing, see NAD+ injections: benefits, side effects and cost, and for in-clinic drips, is NAD+ IV therapy safe?

The honest summary

Oral glutathione can raise the body's stores, and those gains fade after you stop. IV and injected glutathione cost more and have less evidence behind them. The August 2026 alert shows the real risk: the ingredient's grade and the pharmacy's process can matter more than the molecule. If you want glutathione injections anyway, get the pharmacy's name and the ingredient's grade before your first dose.

Many of the same programs also sell peptides. For side effects and results on the most popular one, see sermorelin side effects and sermorelin before and after. The broader evidence is in sermorelin for longevity and peptides for longevity.