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Related treatment · antioxidant

Glutathione injections, IVs and supplements

Glutathione is an antioxidant your body makes. It is sold as pills, skin products, inhalers, IV infusions and injections. Those forms are not interchangeable. There is no FDA-approved glutathione injection.

Source: FDA and human studies, checked 2026-08-21

It is made from three amino acids and helps cells handle normal chemical reactions. It is not a peptide treatment in this site’s compound directory. Clinics may group it with peptides, but that does not make the evidence or dosing interchangeable.

Medically reviewed by Jennifer Montecillo, MD · non-practicing medical reviewer

Reviewed 2026-08-21

What matters first

What it is
An antioxidant your body makes
FDA-approved injection
No
Human IV evidence
Small, condition-specific studies
Broad wellness claims
Not proven by those studies

Start with the form

Five products can share one ingredient name

A result from one form does not prove the others work. Match every claim to the exact product and the way it was taken.

Pills and liposomal products

Swallowed by mouth

Liposomal describes how a supplement is packaged. It does not turn an oral product into an IV treatment.

Topical products

Applied to the skin

A skin result belongs to the exact cream or gel that was tested. It does not prove an injection works for skin tone.

Inhaled glutathione

Breathed into the lungs

FDA’s review found too little evidence to support the proposed lung uses. Inhaled results do not transfer to pills or injections.

IV glutathione

Given into a vein

Small human studies tested IV glutathione in specific medical settings. They did not test a general detox, energy or anti-aging visit.

Glutathione injections

Injected by a clinician

There is no FDA-approved glutathione injection. A compounded injection is also not the same route as a pill, cream or inhaled product.

Common reasons people look it up

What people hope it will do

  • Detox
  • More energy
  • Immune support
  • Anti-aging
  • Brighter skin

These are marketing themes and reader questions, not a list of proven benefits.

What the evidence answers

What human studies actually tested

FDA reviewed 24 proposed uses and found no available evidence or too little evidence to support them. The human IV trials below asked narrow questions in people with artery or heart problems. They did not test a routine wellness visit.

Two examples of the human evidence

What the IV trials found—and what they did not

The protocol stays beside the result so a hospital study cannot quietly become a spa schedule.

Who was studied

40 adults with peripheral artery disease

What they received
IV glutathione or saline twice a day for five days
What researchers measured
Pain-free walking distance and blood flow in the affected leg
What they reported
The glutathione group walked farther without pain and had better blood-flow measurements at the end of treatment.
What this does not prove
This was a five-day study in one vascular disease. It was not a general wellness or skin-brightening study.

Who was studied

50 people having emergency heart treatment

What they received
IV glutathione or placebo before a coronary procedure, then again over three days
What researchers measured
Oxidative-stress markers and a marker of heart-muscle injury
What they reported
The pilot reported lower oxidative-stress markers in the glutathione group. It was not designed to prove a broad wellness benefit.
What this does not prove
The authors called for a larger trial powered to measure clinical outcomes. A biomarker change is not proof of detox, energy or longevity.

Safety and product quality

Two product events, kept in their proper scope

These events matter, but neither one supplies a side-effect rate for every form or every pharmacy.

2019 FDA compounding alert

The ingredient was not suitable for sterile injection

FDA investigated patients who became ill after IV products were made with powder sold for dietary supplements. FDA testing found too much bacterial endotoxin in the samples.

This was an ingredient-quality event. It does not mean every compounded glutathione product is contaminated.

2026 company recall announcement

One compounded injection lot was recalled

An FDA-hosted company announcement named one 200 mg/mL multi-dose-vial lot with elevated bacterial endotoxin. The company also reported symptoms linked to that product.

This is a company announcement posted by FDA, not an FDA endorsement. The symptoms are not a side-effect rate for all glutathione products.

What remains unknown

The biggest claims still need the right trials

  • Whether routine IV visits improve energy, immunity or healthy aging.
  • Whether IV glutathione safely lightens skin over long-term use.
  • Whether oral, liposomal and injected forms produce comparable results.
  • What long-term safety looks like for repeated wellness use.

Common questions

Glutathione basics

Is glutathione a peptide?

Glutathione is made from three amino acids, so scientists call it a tripeptide. Clinics usually offer it as an antioxidant treatment. It is not one of the peptide therapies in our compound directory.

Are glutathione IVs and injections FDA-approved?

No FDA-approved glutathione injection exists. Products offered by clinics are compounded, and FDA does not approve compounded drugs before they are sold.

Does liposomal glutathione work like an IV?

No. A liposomal product is swallowed, while an IV goes directly into a vein. Evidence for one form cannot be used as proof for the other.

Do studies prove glutathione detoxes the body?

The human IV studies below tested narrow medical questions. They did not test a general detox visit or prove the broad wellness claims used in marketing.

Start with the exact treatment name

NAD+, glutathione, vitamin B12 and L-carnitine each keep their forms and evidence separate.

Beginner, everyday and emerging-topic guides

Approved products, human research and online claims stay visibly separate across the library.

How to read a peptide skincare claim

What the product contains, how it was used, what it was compared with and what the study measured.

L-carnitine, MIC and lipotropic shots compared

Why a clinic menu name is not enough to identify the product or its evidence.

B12 shots, pills and clinic mixtures compared

Why the cause of low B12 and the exact product name both matter.

The citable data behind HealthspanLedger’s findings

CSV, JSON, BibTeX and RIS files, with one version and one canonical report per table.

Want to check how evidence enters this guide? Read How we source.

5primary sources, each with the day we read it — open the documents used on this page