Glutathione
gloo-tah-THY-own
Your body's most powerful antioxidant — protects cells from damage, supports detox, and enhances recovery.
Also known as: GSH, The Master Antioxidant
FDA approved for: FDA-recognized as GRAS (Generally Recognized as Safe) · Used in IV formulations for acetaminophen overdose (as NAC precursor)
Last reviewed: April 2026
What It Does
Glutathione is a molecule your liver makes from three amino acids. It's present in every cell and is your primary defense against oxidative stress — the cellular damage caused by exercise, pollution, alcohol, and aging. Injectable glutathione bypasses the gut (which breaks down oral forms) and delivers it directly to your bloodstream.
Why People Take It
How It's Administered
Subcutaneous Injection
Small needle into belly fat, similar to insulin shot
Frequency
3 times per week
Pain Level
●○○ Minimal
Self-Administered
Yes — at home
Typical Range
200mg – 600mg
Iv Infusion
IV drip at a clinic, higher doses for acute recovery
Frequency
Weekly or as needed
Pain Level
●○○ Minimal
Self-Administered
Clinic only
Typical Range
600mg – 2000mg
What To Expect
Immediately
Some people report a 'clarity' feeling after IV infusion.
Week 2–4
Improved recovery from workouts. Skin may appear brighter.
Month 2+
Sustained antioxidant protection. Better overall resilience.
Side Effects
Overall: Mild
Common (1–10%)
Injection site redness
Brief redness or mild sting at injection site.
Uncommon (0.1–1%)
Bloating
Temporary GI discomfort with higher doses.
Who Should NOT Take This
• Allergy to glutathione (extremely rare)
• Asthma (inhaled forms may trigger bronchospasm)
Drug Interactions
• Chemotherapy drugs — may interfere (consult oncologist)
• Generally very few interactions due to natural occurrence in body
Pregnancy: Naturally present in the body during pregnancy. Supplemental glutathione has limited pregnancy safety data — discuss with provider.
Clinical Details
Compare With Similar Peptides
Both are cellular defense molecules. Glutathione is the primary antioxidant; NAD+ is the primary energy currency. They complement each other.
Open Full Comparison Tool →Frequently Asked Questions
This peptide is available through our protocols.
FDA-approved for at least one indication. Your provider will determine if this is appropriate for you.