Protocol MD
Glutathione vial
LongevityPhysician review required

Glutathione Injections

Starting at

$116/mo

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What is glutathione and what does it do?

Glutathione is a tripeptide (glutamate, cysteine, glycine) often called the body's 'master antioxidant' — the most abundant intracellular antioxidant and a key cofactor for liver detoxification. Levels decline with age and oxidative stress, which is why some protocols work to restore it.

What are the benefits of glutathione?

Patients commonly pursue glutathione for antioxidant support and recovery. It's a cofactor the body uses for oxidative-stress defense and liver detoxification. Individual response varies, and we make no disease-treatment claims.

Why injections or IV instead of oral glutathione?

Oral glutathione has poor bioavailability — much of it is broken down in the gut before absorption. Injection or IV bypasses that, producing more measurable effects. Some patients still use oral forms for maintenance.

How It Works

Physician-prescribed, in three simple steps.

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Step 1

Free assessment, 100% online

Answer a few questions about your health history, lifestyle, and goals through our secure online medical intake. It takes about five minutes.

Step 2

Physician review & prescription

A US-licensed physician reviews your intake and prescribes Glutathione only if it's clinically appropriate for you. We place a hold on your card at checkout and charge it only if they prescribe.

Step 3

Delivered to your door

If prescribed, your medication ships cold-chain and discreetly to your door, with continuous physician oversight and simple refills.

Overview

What Is Glutathione?

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Glutathione is a tripeptide composed of three amino acids: glutamate, cysteine, and glycine. It's one of the body's most abundant intracellular antioxidants.

Glutathione levels decline with age and are depleted by oxidative stress. Restoring it via injection or IV supports cellular antioxidant defense.

Who It's For

Who Glutathione Is For.

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01

Heavy Oxidative-stress Exposure

Patients managing high oxidative load from lifestyle or chronic stress.

02

Antioxidant Support

Patients seeking cellular antioxidant support.

03

Recovery Support

Athletes and high-output professionals managing chronic oxidative load.

04

Longevity Stacks

Often paired with NAD+ in foundational longevity stacks.

How Glutathione works

Defends the cell. Helps clear what it can't use.

Glutathione is the most abundant antioxidant inside human cells. It donates electrons to unstable molecules and helps bind compounds into a form the body can excrete. Levels decline with age.

Glutathione vial from Protocol MD

Neutralises free radicals

Glutathione gives up an electron to reactive oxygen species, stabilising them before they can damage DNA, proteins and cell membranes.

Supports detoxification

In phase II liver detoxification, glutathione attaches to compounds and makes them water-soluble enough for the body to clear.

Involved in immune regulation

Glutathione is present at high concentrations inside immune cells and participates in how they activate and then resolve a response.

Why glutathione

Glutathione drops as you age.
It is the antioxidant your cells use to neutralise free radicals.

0%25%50%75%100%Blood glutathione (relative to young adult)Markedly lower20s30s50s60s70s+Age
Blood glutathione level

Lower in healthy older adults

Blood glutathione was measured in healthy adults across a wide age range. Older adults had markedly lower levels than younger ones, and the people with the highest levels tended to be in better general health.

Source: Lang CA, Naryshkin S, Schneider DL, Mills BJ, Lindeman RD. J Lab Clin Med. 1992;120(5):720-5.

The whole redox system shifts

It is not only the amount that changes. With age, more of the body's glutathione is found in its spent, oxidised form, so less of it is available to do the work of neutralising free radicals.

Source: Erden-Inal M, Sunal E, Kanbak G. Cell Biochem Funct. 2002;20(1):61-6.

Charts are illustrative representations of published research and of the known properties of a medication class or active ingredient. They may simplify or normalise study data for clarity, describe general biology rather than any individual's result, and are not a prediction or guarantee of an outcome. A reference to a study or mechanism does not establish that any specific medication, formulation or treatment plan produces the same result. Compounded medications are not FDA-approved and are not evaluated by the FDA for safety, quality or effectiveness.

FAQ

Common questions about Glutathione.

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What is glutathione and what does it do?

Glutathione is a tripeptide (glutamate, cysteine, glycine) often called the body's 'master antioxidant' — the most abundant intracellular antioxidant and a key cofactor for liver detoxification. Levels decline with age and oxidative stress, which is why some protocols work to restore it.

What are the benefits of glutathione?

Patients commonly pursue glutathione for antioxidant support and recovery. It's a cofactor the body uses for oxidative-stress defense and liver detoxification. Individual response varies, and we make no disease-treatment claims.

Why injections or IV instead of oral glutathione?

Oral glutathione has poor bioavailability — much of it is broken down in the gut before absorption. Injection or IV bypasses that, producing more measurable effects. Some patients still use oral forms for maintenance.

What are the possible side effects of glutathione?

Injectable glutathione is generally well tolerated; mild, temporary injection-site reactions are the most common report. Your physician reviews your history and sets an appropriate protocol — share all medications and conditions during intake.

glutathione side effects
How is glutathione dosing decided?

Dosing is individualized by route (subcutaneous or IV) — a US-licensed physician sets and adjusts it to your goals and tolerance. We don't publish protocols because glutathione should be dosed under medical supervision.

How is Glutathione prescribed through Protocol MD?

You complete a short online intake, and a US-licensed physician (MD or DO) reviews your history and goals to decide whether Glutathione is appropriate — a physician makes the call, never an algorithm. We place a hold on your card at checkout, and if they decide it isn't right for you, the hold is released and you're never charged.

Do I need insurance?

No insurance is required — Protocol MD is cash-pay and transparently priced, with no surprise fees. We provide an itemized receipt you can submit for reimbursement.

Ready to start?

Buy Glutathione Injections online, physician-prescribed.

Complete your medical intake. A US-licensed physician reviews it and prescribes only if appropriate. We place a hold at checkout and charge it only if a physician prescribes.

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