Glutathione Injection Dosage Guide

When considering a glutathione injection, determining the correct dosage is a clinical decision based on your individual health profile and specific goals. There is no single universal dose. A licensed clinician reviews your intake and determines whether treatment is appropriate. Typically, starting dosages for intramuscular glutathione injections range from 200 mg to 600 mg given one to three times per week, depending on the concentration of the prescribed vial and your clinician's assessment.

Glutathione is a naturally occurring peptide found in every cell of the human body, composed of three amino acids: glutamine, glycine, and cysteine. It functions primarily as an antioxidant, helping to neutralize free radicals and reactive oxygen species. Because oral glutathione is poorly absorbed in the digestive tract, intramuscular injections are used to deliver the peptide directly into the muscle tissue for systemic absorption.

How Dosages Are Structured

The dosage of a glutathione injection depends on the concentration of the medication and the volume drawn into the syringe. Compounded glutathione is typically prepared at a concentration of 200 mg/mL. If a clinician prescribes a 200 mg dose, you draw 1 mL of the medication. For a 400 mg dose, you draw 2 mL.

The frequency of injections is just as important as the volume of each dose. A typical protocol might begin with one injection per week to observe how your body responds. Based on tolerability and clinical goals, the frequency might increase to two or three times per week. Your clinician provides specific instructions tailored to your health profile. You must follow these instructions precisely and not adjust your dose or frequency without clinical guidance.

Several factors influence the dosage your clinician prescribes. These include your age, overall health status, body mass, and the specific reasons you are seeking treatment. A clinician considers your medical history, including any existing conditions and medications you currently take. Your body's baseline levels of oxidative stress and antioxidant capacity also play a role. Because there is no standard lab test universally used to determine exact glutathione requirements, clinicians rely on a comprehensive review of your intake questionnaire. They may start with a conservative dose to ensure you tolerate the medication well before considering any adjustments.

The Role of Compounding Pharmacies

Glutathione injections are typically produced by compounding pharmacies. Compounded medications are not FDA-approved but are prepared by state-licensed compounding pharmacies under Section 503A of the Food, Drug, and Cosmetic Act. These pharmacies mix the raw pharmaceutical ingredients to create the injectable solution.

Because compounded medications are made to order, the specific concentration and vial size can vary depending on the pharmacy and the prescriber. Common vial sizes include 5 mL and 30 mL. At BodyGood, glutathione is available in these sizes. The 5 mL vial costs $99.00 for a one-time purchase or $99.00 per month on a subscription in 2026. A larger 30 mL vial is available as a one-time purchase for $199.00 in 2026. Prices are determined by the volume and the pharmacy's costs. You can start your intake here.

The availability of compounded glutathione injections depends on state regulations and the licensing of the prescribing clinicians and dispensing pharmacies. The medication is available where our clinicians and partner pharmacies are licensed; eligibility is confirmed during intake. The process begins with an online medical questionnaire. You provide details about your medical history, current health status, and goals. A licensed clinician reviews this information. If approved, the prescription is sent to a partner compounding pharmacy, which prepares the medication and ships it directly to your address.

Administration and Injection Technique

Glutathione is administered via intramuscular injection. This means the medication is injected deep into a muscle, most commonly the deltoid (upper arm), ventrogluteal (hip), or vastus lateralis (thigh). Intramuscular injections allow the medication to be absorbed into the bloodstream steadily.

Your clinician provides specific instructions on how to administer the injection safely. This includes guidance on selecting the appropriate needle size (typically 22-gauge to 25-gauge, 1 to 1.5 inches in length), preparing the injection site with an alcohol swab, and using the correct technique to inject the fluid. Proper technique minimizes discomfort and reduces the risk of complications such as infection or tissue irritation.

What to Expect During Treatment

The physiological response to glutathione injections varies from person to person. Because glutathione is a naturally occurring antioxidant, introducing it via injection supplements your body's existing supply. The primary mechanism involves the neutralization of free radicals, which are unstable molecules that can cause cellular damage.

Some individuals report changes in their energy levels or general sense of well-being, while others do not notice immediate subjective effects. Acknowledge that responses are highly individualized, and there is inherent uncertainty in how any one person will respond. The clinical goal is to support cellular function and manage oxidative stress.

Safety and Potential Side Effects

While glutathione is a natural compound, injections carry risks. Potential side effects at the injection site include pain, swelling, redness, and bruising. Systemic side effects are less common but can occur. These may include mild nausea, dizziness, or allergic reactions.

If you experience severe side effects, such as difficulty breathing, severe rash, or swelling of the face, seek immediate emergency medical care. Always report any mild or moderate adverse reactions to your prescribing clinician. They may adjust your dosage, change your injection frequency, or discontinue the treatment altogether.