Overview
Glutathione is the human body's master intracellular antioxidant, composed of three amino acids: glutamine, cysteine, and glycine.
What problem it targets: It targets high oxidative stress, heavy liver toxin burdens, cellular toxicity, dull or hyperpigmented skin, sluggish mitochondrial function, and chronic inflammation.
What It Does
• Neutralizes free radicals and reactive oxygen species: Directly quenches damaging oxidative molecules, protecting DNA, cell membranes, and proteins from cellular degradation.
• Powers Phase II liver detoxification: Conjugates with fat-soluble toxins, heavy metals, and medication byproducts, transforming them into water-soluble forms for safe excretion.
• Modulates skin pigmentation (melanin): Switches melanin synthesis from darker eumelanin to lighter pheomelanin, producing a brighter, more even skin complexion over time.
• Realistic expectations: Because oral glutathione is largely degraded in the gut, injectable (SubQ/IM/IV) delivery ensures full systemic bioavailability. Expect improved energy and clearer skin within 3 to 6 weeks.
Reconstitution
| Vial size | BAC water / Solvent | Concentration |
|---|---|---|
| 600 mg | + 1.2 mL | 500 mg/mL |
| 1500 mg | + 3 mL | 500 mg/mL |
Protocol
| Phase | Frequency | Dose | Notes |
|---|---|---|---|
| Weeks 1–2 | Mon–Fri upper glute | 100 | Tolerance check at 100 mg. 5×/week = 500 mg/week. Watch for garlic taste, flushing, or injection-site sting. mg |
| Weeks 3–8 | Mon/Wed/Fri upper | 200 | Working dose ceiling (PeptideDosages canonical). 3×/week = 600 mg/week. Matches Empower/AgelessRx clinic 200 |
| glute | mg | mg dose. Hold at 100 mg if 200 mg poorly tolerated. | |
| Maintenance | 1–2×/week | 200 | Ongoing antioxidant support. Drop to once-weekly after the 8-week loading + working phase if benefit holds. mg |
| Off | 2–4 weeks | – | Essential break. Skipping leads to tolerance and diminishing returns. Cycle: 4 weeks on / 4 weeks off. Max: 12 weeks on / 4–8 weeks off. Hepatic methylation cycling supports best results with breaks. Timing: Daily SubQ, reconstitute fresh; oxidizes within hours. By sex: Unisex antioxidant, same protocol for men and women, no cycle effect. Confirm with a prescriber in pregnancy. |
Handling & Stacking
Injection site
Upper outer glute preferred. Abdomen acceptable.
Storage
- Freeze-dried: -4°F (stable long-term).
- Reconstituted: use fresh, do not store for weeks.
- Glutathione oxidizes to GSSG within hours at room temperature or once exposed to air/light; kept cold (36–46°F) and dark in the sealed amber vial it lasts only a few days.
- Discard the moment it yellows (that’s oxidation).
- Never room temperature; never freeze (ice crystals denature the tripeptide).
Side effects
Upper glute sting (brief). Flushing or garlic taste within 30 min. Reconstitute fresh only.
What to expect
- Energy improvement and reduced oxidative fatigue within 2–4 weeks.
- Skin brightening reported by many users.
- Must reconstitute fresh, oxidises within hours of reconstitution.
- Supply math 600mg → 8 vials | 1500mg → 4 vials (8-wk @ 200 mg × 3/wk) Fresh-dose note: a reconstituted vial covers ~3 doses but would sit refrigerated across the week, if you want each dose truly fresh, reconstitute a smaller vial (or add less BAC water for fewer doses) more often rather than holding one vial for several days.
Pairs well with
NAD+ (cellular redox stack); GHK-Cu (additive antioxidant); Vitamin C (recycle glutathione); BPC-157 (gut + systemic recovery); MOTS-c (mitochondrial)
Avoid
Sulfa allergy (theoretical). Concurrent chemotherapy (may interfere, physician supervision)
Safety & Patient Education
Contraindications
Sulfa allergy (theoretical, reaction-prone individuals), concurrent chemotherapy without oncology supervision
Warnings
Must be reconstituted fresh; oxidizes within hours. FDA has flagged compounded IV glutathione for skin-lightening use as an unproven indication with serious adverse event reports.
Drug interactions
Chemotherapy (cisplatin, doxorubicin, cyclophosphamide and others): glutathione may reduce both toxicity AND efficacy; do NOT combine outside an oncologist-supervised protocol Acetaminophen overdose treatment (N-acetylcysteine pathway): glutathione is the protected metabolite, supplemental IV/SubQ glutathione may augment NAC therapy but is not a substitute Warfarin: theoretical mild potentiation via reduced oxidative stress on coagulation factors; monitor INR if combining chronically Sulfa drugs (sulfonamide antibiotics, sulfasalazine, some diuretics): increased reaction risk in sulfa-allergic patients given the sulfhydryl group Methylating agents and SAMe: complementary methylation/redox support; theoretical synergy, no human interaction data
Labs
- Compound-specific: CBC baseline; liver enzymes (AST/ALT, bilirubin) and renal function (BUN/creatinine, eGFR) at baseline and periodically through any repeated IV course, especially above ~5 g/dose (documented hepatotoxicity signal), Out of range?
- Rising ALT/AST or bilirubin = hepatic stress from high-dose glutathione → cut the dose or space out the infusions; a falling eGFR = renal strain → hold and hydrate.
Stop criteria
Rash, hives, or sulfhydryl-type allergic reaction; severe injection-site irritation
Patient education
- Reconstitute immediately before use; discard unused, glutathione oxidizes within hours and is no longer active.
- Do not use during active cancer treatment without oncology coordination.
- Skin-lightening use is unproven and the FDA has issued safety warnings about compounded IV products marketed for that purpose.
References
researchdosing · peptidedosages · DailyMed · PubMed
