Glutathione

In plain English

Glutathione is a tiny peptide of three amino acids that every cell makes. It is the body’s main antioxidant, mopping up damaging molecules and helping the liver clear toxins. Levels fall with age, illness and stress, which is why people take it by injection.

What it's used for

  • Antioxidant and detox support
  • Energy and recovery
  • Skin brightening
  • Healthy aging

Benefits

In human studies, glutathione injections lightened skin tone in some trials, and intravenous glutathione has been studied in Parkinson’s disease and liver conditions. Users report more energy, clearer skin and faster recovery.

How it works

In simple terms: glutathione is a cell’s cleanup crew.

It neutralizes reactive oxygen molecules, recycles other antioxidants such as vitamins C and E, and binds toxins and drugs in the liver so they can be removed. In skin, it shifts pigment production from dark to light melanin.

Development history

  • 1888: First identified.
  • 1920s–1930s: Its structure is worked out.
  • Today: Widely used in wellness clinics by injection and IV.

Typical protocols

Educational information only, not medical advice. The information below describes how this peptide has been used in research, on prescription labels or by users. It is not a recommendation. Talk to a qualified healthcare professional before starting, stopping or changing anything.

These ranges are what users commonly report.

Use Dose Frequency
Injection 200–600 mg 1–3 times a week

Cycling

Often used in courses of several weeks, or as an ongoing weekly dose.

Administration options

Intramuscular injection is most common; subcutaneous is also used. IV is given in clinics.

Reconstitution and dosing calculator

Often comes as 600 mg or 1,500 mg vials. Doses are large, so the calculator works in mg here.

1Peptide in the vial

The total amount printed on the vial label.

2Bacteriostatic water added

More water makes each dose a bigger, easier-to-measure draw. It does not change how much peptide is in the vial.

3Dose per injection

Use the dose from your protocol or your clinician. 1 mg = 1,000 mcg.

4Your syringe

All three are U-100 insulin syringes: 100 units = 1 mL. Smaller barrels make small doses easier to read.

Draw your syringe to

– units

Volume to draw
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Concentration
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Each unit holds
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Doses per vial
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Show the math

    This tool does arithmetic only. It does not choose a dose or confirm that any substance is right for you. Double-check every result against your syringe and your clinician’s instructions.

    Side effects and safety

    • Injection-site soreness is common.
    • Occasional flushing, cramping or a sulfur smell.
    • People with asthma should be cautious, as it has triggered breathing problems when inhaled.
    • Avoid during pregnancy and breastfeeding.

    Common stacks

    • NAD+: a common wellness pairing.
    • Vitamin C: often given with it.

    Storage

    Store as directed on the vial; most are refrigerated. Once opened, use within about 4 weeks. Discard if it turns yellow or smells strongly.

    Compare with

    • NAD+: supports cell energy rather than acting as an antioxidant.
    • SS-31: protects mitochondria directly.

    Frequently asked questions

    Does it really lighten skin?

    Some human studies show modest lightening; results vary.

    References

    1. Weschawalit S, et al. Glutathione and its antiaging and antimelanogenic effects. Clin Cosmet Investig Dermatol. 2017;10:147-153.
    2. Pizzorno J. Glutathione! Integr Med (Encinitas). 2014;13(1):8-12.
    Educational information only. Not medical advice. Always consult a qualified healthcare professional.

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