⚠️ Research Use Only — Compounds discussed are research chemicals, not FDA-approved for human use. Not medical advice. Full disclaimers →
Also known as: GSH, L-Glutathione, Gamma-Glutamylcysteinylglycine, Reduced Glutathione
Glutathione is a antioxidant research compound (not FDA-approved for human use) studied for detoxification. Glutathione is the body's most important natural antioxidant, studied for detoxification, immune support, skin brightening, and protecting cells from oxidative damage throughout the body. Research dose: 200–600 mg 2-3x/week. Half-life: 2 hours. Available from COA-verified vendors with code PEPTIDEX for up to 20% off.
Rankings independent · Research use only
Glutathione is the body's master antioxidant — a tripeptide (glutamate-cysteine-glycine) present in every cell. It neutralizes reactive oxygen species, regenerates vitamins C and E, supports Phase II
COA-verified vendors · Use code PEPTIDEX for up to 20% off
* Prices for research peptide acquisition. Not therapeutic products.
| Vendor | Purity | List Price | With PEPTIDEX | Code | Shop |
|---|---|---|---|---|---|
Amino ClubEditor's Pick | 99%+ | $59.991500 mg | $47.99Save 20% | PEPTIDEX | * Research vendor — verify your regional regulations before purchase. Shop |
| 98%+ | $149.991500 mg | $75.00Save 50% | PEPTIDEX | * Research vendor — verify your regional regulations before purchase. Shop |
Use code PEPTIDEX for 20% off at Amino Club.
* Research vendor — verify your regional regulations before purchase.
Shop at Amino ClubUse code PEPTIDEX for 50% off at Ascension Peptides.
* Research vendor — verify your regional regulations before purchase.
Shop at Ascension PeptidesGlutathione is the body's master antioxidant — a tripeptide (glutamate-cysteine-glycine) present in every cell. It neutralizes reactive oxygen species, regenerates vitamins C and E, supports Phase II liver detoxification, and modulates immune cell function. Injectable GSH bypasses poor oral bioavailability.
Forman et al. (Mol. Aspects Med.): Comprehensive review of glutathione's role in redox signaling, detoxification, and its depletion in disease states including Parkinson's, liver disease, and cancer.
StrongDröge & Breitkreutz (Proc. Nutr. Soc.): Review demonstrating glutathione's critical role in lymphocyte proliferation, NK cell activity, and overall immune defense.
ModerateWeschawalit et al. (Clin. Cosmet. Investig. Dermatol.): RCT showing oral glutathione supplementation significantly reduces melanin index and improves skin elasticity and wrinkles.
ModerateSian et al.: Early landmark study demonstrating reduced glutathione levels as one of the earliest biochemical changes in Parkinson's disease pathology.
StrongA 2026 study found that extracellular vesicles from human umbilical cord mesenchymal stem cells reduced pulmonary fibrosis and ferroptosis in a mouse model. Researchers demonstrated this effect was driven by USP10-mediated deubiquitination and stabilization of the SLC7A11 protein.
PreclinicalA 2026 study demonstrated that NAD+ administration significantly attenuated lung injury following cardiac arrest and resuscitation in a swine model. Researchers found this effect was likely mediated by suppressing ferroptosis through the modulation of the YAP/ACSL4 signaling pathway.
PreclinicalA 2026 preclinical study demonstrated that DOPA-31 mitigated cadmium-induced neurotoxicity in a zebrafish model by reducing oxidative stress and downregulating pro-inflammatory markers. Researchers found the derivative improved motor and cognitive functions while upregulating neuroprotective factors and reducing neuronal damage.
PreclinicalIn a 2026 preclinical study, researchers demonstrated that vaccarin alleviated myocardial ischemia-reperfusion injury in mouse and cellular models. The findings indicated that vaccarin suppressed oxidative stress and ferroptosis by inhibiting the NOX4-driven JAK2/STAT3 signaling pathway.
PreclinicalA 2026 study demonstrated that ZFP36L1 promotes microglial ferroptosis and neuroinflammation during ischemic stroke by reducing FTO mRNA stability and increasing ACSL1 expression. Researchers found that silencing ZFP36L1 successfully alleviated cerebral ischemic injury in mouse models.
PreclinicalTargeting ferroptosis exploits metabolic vulnerabilities in breast cancer subtypes and influences the tumor microenvironment, a 2026 review found. The research demonstrated that this iron-dependent cell death mechanism provides a potential strategy to address drug-resistant cancer stem cells.
EmergingExcellent safety profile. Used clinically for decades. IV and SubQ routes well-tolerated. Rare allergic reactions possible. May reduce effectiveness of some chemotherapy drugs — avoid during cancer treatment without oncologist approval.
See our evidence grading methodology for how we evaluate and grade peptide safety data.
* Dosing data from published literature — not a human use recommendation.
SubQ: 200-600mg. IV push: 600-2000mg. For skin brightening, consistent dosing over 8-12 weeks is needed. Often combined with Vitamin C for synergistic antioxidant effect.
Week 1
Improved energy and reduced oxidative stress markers
Weeks 2–4
Skin brightening begins; improved liver function markers
Month 2–3
Noticeable skin lightening effect; improved immune markers; better hangover recovery
Long-term
Sustained antioxidant protection; potential neuroprotective benefits
| Side Effect | Incidence | Severity |
|---|---|---|
Injection site redness | ~5% of users | mild |
Mild bloating (oral) | ~8% of users | mild |
Rare allergic reaction | <1% of users | rare |
Finding verified, high-purity Glutathione requires rigorous COA verification. We independently evaluate vendors based on third-party HPLC testing, purity thresholds (≥98%), and batch-specific documentation.
View COA-Verified Glutathione✓ Third-party tested·✓ US shipping·✓ COA on every batch
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⚠️ Educational only · Not medical advice · For research use only. Information on this page is compiled from peer-reviewed literature and is intended strictly for educational and informational purposes. Peptides discussed may be unapproved research chemicals — consult a licensed healthcare professional before considering any peptide compound. Read our full disclaimer
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