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The body’s main antioxidant tripeptide. It is in 503A Category 1, so compounding is allowed while FDA evaluates it.

Key takeaway

Glutathione is a three-amino-acid molecule that every cell makes. It helps neutralize reactive oxygen species and supports liver detoxification.

At a glance

FDA statusNot FDA-approved
503A compounding503A Category 1: under FDA evaluation, compounding allowed under interim policy
Body areasCellular energy & aging, Immune & inflammation, Skin & hair
Through ScriptMatesPrescribable by licensed providers
Open questions1 noted below

What is glutathione?

Glutathione is a three-amino-acid molecule that every cell makes. It helps neutralize reactive oxygen species and supports liver detoxification.

It is not an FDA-approved drug. It is in 503A Category 1, which FDA’s interim policy allows to be compounded while FDA evaluates it.

Dosage forms

No FDA-approved dosage form. FDA lists glutathione as a bulk substance under evaluation, without specifying a finished dosage form. Compounded preparations are not FDA-approved.

Is glutathione FDA-approved?

Not FDA-approved as a drug. In 503A Category 1 (under evaluation).

Can it be prescribed through ScriptMates?

503A Category 1: under FDA evaluation, compounding allowed under interim policy. A 503A partner pharmacy lists this peptide, and it has a lawful 503A compounding pathway.

What we could not confirm

  • Glutathione is a small tripeptide and is often classed as an antioxidant rather than a therapeutic peptide. We list it because partner catalogs carry it.

Sources

  1. FDA: Bulk drug substances nominated under 503A, Categories 1–3 (May 14, 2026)
  2. FDA: Bulk drug substances used in compounding under section 503A

Checked October 27, 2026. FDA updates these pages, so confirm before relying on them.