Library/For Long/Glutathione

OTC (oral / liposomal)For LongAntioxidant+1 more

Glutathione

A tripeptide your liver makes. We read all 60 studies. The protocol is below.

Updated 03 May 2026Read 10 minEvidence ●●●○○Citations 60

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Free — puts Glutathione on your decision board.

The Glutathione Report · $19

Everything you need to start: dose, sourcing, safety, our verdict.

One purchase · yours forever

Built from 60 cited studies.

Status

OTC

Class

For Long

Evidence

3/ 5●●●○○

Human trials

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Raises blood glutathione

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Oral bioavailability (plain)

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Read this if

you've been talked into a $200 IV drip and want to know what you actually paid for
you're using oral NAC or liposomal capsules and curious whether the IV is meaningfully different
a Filipino or Korean family member uses it for skin lightening and you want the medical read

Skip this if

**you're on active chemotherapy (especially cisplatin/platinum-based) or radiation** — the interaction is contested in the literature; some trials show glutathione **reduces neuropathy and toxicity without losing tumor-kill** (a real plus), but the underlying concern is that an antioxidant can blunt the oxidative mechanism the chemo relies on. **Don't add glutathione mid-treatment without your oncologist signing off** — this is not a self-rx decision
you have asthma triggered by sulfites or any sulfur-containing compounds — anaphylactoid reactions to glutathione have been reported
you think this is going to detox your liver after a hard weekend — it won't, more than rest and water
you're skin-lightening expecting permanent results — pigment comes back when you stop

The 4 ways you can buy Glutathione

No drug-grade brand; OTC liposomal supplements and clinic IV are the realistic channels.

Compounded 503A

✓

$120–$1,000/mo (subq to IV-bar pricing)

Pharmacy-grade; IV-bar markup is the cost driver, not the molecule.

RUO (research-only)

✓

Sold 'for research only'

$40–$150/mo (oral/liposomal) or $50–$200/mo (RUO injectable)

Highest for injectable form. OTC liposomal is the safer cheap path.

Gray market

✓

Unregulated overseas import

$10–$15/mo at IV-dose volumes

Crypto/Wise pay; glutathione oxidizes in solution, so reconstituted product older than ~14 days is…

Click any lane for the full Sourcing breakdown. Prices and lane availability vary by molecule — this is the per-peptide snapshot, not a generic table.

First 90 days · Glutathione

What we'd actually do

Weeks 1–2

Nothing perceptible. Longevity peptides are not 'feel something' molecules. If a vendor says you'll notice an effect this fast, they're selling you on placebo.

Weeks 4–8

Possibly subtle shifts in biomarkers (inflammation, sleep, recovery). Subjective changes in this window are usually placebo and confounded with whatever else you changed.

Week 12 — decide

Bloodwork or biomarker check. If the protocol can't be defended on a labeled change at 12 weeks, it can't be defended on hope.

Quit if

Any unusual symptoms — especially the cancer-mechanism flag for angiogenic peptides.
12 weeks of continuous use with no objective biomarker support to keep going.
Tolerance signal (the protocol needs escalating doses to feel the same).

Identity

What it is.

Glutathione is a tripeptide — glutamate, cysteine, glycine — and the major intracellular antioxidant in essentially every cell you have. It neutralizes reactive oxygen species, recycles vitamins C and E, and is the workhorse of phase II liver detoxification.

It's not a drug in the usual sense. It's a normal cellular molecule that you make from amino acids in your diet. Levels can drop with age, oxidative stress, chronic disease, or low cysteine intake. The supplement industry has built three big formats around that idea: oral glutathione (poorly absorbed), liposomal glutathione (better absorbed), and IV glutathione (the clinic offering, often paired with NAD+ drips).

NAC (N-acetylcysteine) is the boring oral cousin — it raises intracellular glutathione because cysteine is the rate-limiting . It's cheaper and better-studied than any of the direct-glutathione products.

TL;DR

TL;DR. 30-second version.

The compressed verdict — what Glutathione actually is, what the human evidence shows, and the watch-for in three bullets. Locked.

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Mechanism

Mechanism.

Mechanism · in the Glutathione report

How the molecule actually works — receptor profile, downstream signaling, what to expect mechanistically.

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Evidence

Evidence. What we actually know in humans.

Evidence · in the Glutathione report

The trial breakdown — phase, n, primary endpoint, who funded, what hit, what didn't.

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Human-Evidence Factbox

Human trials

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Raises blood glutathione

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Oral bioavailability (plain)

$19 ↓

Liposomal oral starter dose

$19 ↓

Reduced GSH vs oxidized GSSG

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Endogenous compound

$19 ↓

Sulfite asthma / sulfa-allergy

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Chemo/radiation interaction

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WADA status

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Skin-lightening RCT data

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Dose

Dose. The actual protocol.

Dose · in the Glutathione report

The specific protocol — dose, titration schedule, cycle pattern, frequency, route.

We read 60 studies to write this report.

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Sourcing

Sourcing. Where the cohort actually buys.

Sourcing · in the Glutathione report

Sourcing breakdown — vendor methodology, red flags, our published test results, COA checklist.

We read 60 studies to write this report.

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Safety

Safety. Side effects.

Safety · in the Glutathione report

The watch-for list — contraindications, drug interactions, monitoring labs, when to stop.

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Editorial Position

Editorial position.

Editorial Position · in the Glutathione report

Our editorial position — explicit yes / no / depends, with the reasoning behind it.

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Citations

Citations.

+Show all 60 citations

The Glutathione Report · $19

Everything you need to start.

Dose, sourcing, safety, our verdict. One purchase. Yours forever.

Built from 60 cited studies.

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