Glutathione
Also known as GSH, Reduced glutathione, L-Glutathione
Master antioxidant tripeptide used for detoxification, skin, and immune support research.
How it's taken (route)
a deeper shot into a muscle, usually the glute, thigh, or shoulder
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- Documented dose
- 200–600 mg
- Typical frequency
- 2-3 times weekly
- Cycle
- 8 weeks on
- Half-life
- ~10-15 minutes in plasma; intracellular effects persist longer
- Common vial sizes
- 600 mg, 1500 mg
- Regulatory status
- Research use only
Dose on a U-100 syringe (200–600 mg)
| Vial | BAC water | Draw |
|---|---|---|
| 600 mg | 1 mL | 33–100 unitslarge volume |
| 1500 mg | 1 mL | 13–40 units |
On a U-100 syringe, 100 units = 1 mL, and the syringe holds 100 units total. Most people keep a single subcutaneous injection under about 50 units — bigger volumes are usually mixed stronger (less water) or split into two shots. Only mixes that fit in one syringe are shown. Always double-check with the reconstitution calculator.
What it does
Glutathione is a tripeptide (glutamate-cysteine-glycine) and the body's primary intracellular antioxidant. Injectable glutathione is researched for oxidative stress reduction, liver support, immune modulation, and skin brightening.
Mechanism
Glutathione directly neutralizes free radicals and reactive oxygen species, recycles other antioxidants (vitamins C and E), and supports phase II liver detoxification via glutathione-S-transferase conjugation.
Storage — lyophilisedwhat's this?
Store lyophilized at 2-8C or -20C, tightly sealed; glutathione oxidizes readily when exposed to air.
Storage — reconstitutedwhat's this?
Refrigerate at 2-8C after reconstitution and use within 7-14 days; oxidation (yellowing) indicates degradation.
Reconstitution noteswhat's this?
Reconstitute with bacteriostatic water. Doses are large (200-600 mg), so expect bigger injection volumes; many researchers split doses across injection sites.
Commonly stacked with
- NAD+
- Vitamin C
Commonly reported side effects
- Injection site discomfort
- Transient flushing or lightheadedness
- Zinc depletion with long-term high-dose use
Contraindications noted
- Pregnancy or breastfeeding (insufficient data)
- History of severe asthma (nebulized/injected forms reported to trigger bronchospasm)
Research notes
Oral glutathione has poor bioavailability, which is why injectable and liposomal forms are used in research. Long-term high dosing can lower zinc levels.
Vendors carrying Glutathione
These research suppliers list this compound. Prices, vial sizes and testing vary — always check the current lot certificate before you buy.
- PeptideMaxxingpeptidemaxxing.com15% Off(opens in a new window)
- Penguin Peptidespenguinpeptides.com(opens in a new window)
- Value Research Labsvalueresearchlabs.com(opens in a new window)
Peptide Streak users get 15% off PeptideMaxxing with code PEPSTREAK.
Peptide Streak does not sell peptides and is not affiliated with these vendors. Some list metabolic compounds under coded product names.