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Market data · 67 suppliers · United States

Glutathione USA prices: 67 suppliers compared

67 of the suppliers we track list Glutathione in or shipping to the US. They are ranked by PepFinder Score, which combines reliability, selection, pricing, delivery, support and customer reviews, and shown with the prices they list per mg. We don't sell Glutathione, and we give no guidance on its use.Also listed as: L-Glutathione, Reduced glutathione, GSH

Prices checked 24 Sept 2026 · 112 listings · 95 in stock · Other compounds sold by peptide stores

Glutathione · listed price per mg
USD · 49 suppliersmedian US$0.05/mg
US$0.01/mgUS$0.57/mg
GBP · 6 suppliersmedian £0.03/mg
£0.02/mg£0.08/mg

Each currency is shown separately; prices are never converted.

Regulatory status

In United States the regulator is the U.S. Food and Drug Administration (FDA). Rules on buying, importing and using this product differ by country. Suppliers list it for laboratory research; nothing here is medical advice.

At a glance · 24 Sept 2026

Suppliers serving the US
67 list Glutathione, 95 listings in stock
Price per mg (USD)
US$0.01/mg to US$0.57/mg, median US$0.05/mg, across 79 listings from 49 suppliers
Test certificates
Not yet collected by PepFinder for Glutathione; check each supplier's site. How to read a COA
Legal status in the US
The FDA treats research peptides sold for human use as unapproved new drugs and has said in 2026 warning letters that research-use-only labels do not change that. Full summary with sources

What Glutathione is

Glutathione is a tripeptide made of glutamate, cysteine and glycine that every cell uses as an antioxidant. It is sold as injectable vials, IV drips, capsules and creams, most often for skin lightening. Small trials suggest oral and topical glutathione can modestly lower skin melanin, but there is almost no controlled evidence for glutathione injections for skin lightening, and the US FDA and the Philippine FDA have warned against them. Read the full Glutathione guide, with the published research and references.

  3. 03

    BioPep

    US based
    Third-party testing statedCOA page linked, not reviewed
    4.5 Trustpilot(17)From US$0.03/mg
    8.1/ 10PepFinder Score
    Visit storeView review
    Listing as namedSizePricePer mgStock
    Glutathione 1545.7mg Lot 262031545.7mgUS$49.00US$0.03/mgIn stockOn their site ↗
  31. 31

    ezPeps

    US based
    Third-party testing statedCOA page linked, not reviewed
    4.8 Trustpilot(173)From US$0.04/mg
    6.8/ 10PepFinder Score
    Visit storeView review
    Listing as namedSizePricePer mgStock
    Glutathione1500mgUS$62.99US$0.04/mgIn stockOn their site ↗
  43. 43

    Crown Peptides

    GB based
    COA page linked, not reviewed
    From £0.02/mg
    6.5/ 10PepFinder Score
    Visit storeView review
    Listing as namedSizePricePer mgStock
    Glutathione Research Peptide1-x-1500mg / 1-vial£39.99£0.03/mgIn stockOn their site ↗
    Glutathione Research Peptide1-x-1500mg / 5-vials£169.96£0.02/mgIn stockOn their site ↗
    Glutathione 1500mg x 5 Vial Bundle1500mg x 5£169.96£0.02/mgIn stockOn their site ↗
    Glutathione 1500mg x 10 Vial Bundle1500mg x 10£299.93£0.02/mgIn stockOn their site ↗
    Glutathione Research Peptide1-x-1500mg / 10-vials£299.93—In stockOn their site ↗
  60. 60

    Limitless Biotech

    Third-party testing statedCOA page linked, not reviewed

    Warning: Not confirmed as Limitless Life Nootropics Details

    From US$0.03/mg
    5.4/ 10PepFinder Score
    Visit storeView review
    Listing as namedSizePricePer mgStock
    Glutathione Peptide400 mgUS$30.00US$0.08/mgOut of stockOn their site ↗
    L-Glutathione (500mg)premiumUS$69.99US$0.14/mgIn stockOn their site ↗
    L-Glutathione (500mg)non-lyophilizedUS$66.99US$0.13/mgIn stockOn their site ↗
    Glutathione Peptide600 mgUS$40.00US$0.07/mgIn stockOn their site ↗
    Glutathione Peptide1200 mgUS$36.00US$0.03/mgIn stockOn their site ↗
    Glutathione Peptide1500 mgUS$74.00US$0.05/mgIn stockOn their site ↗

Glutathione market over time

The median listed price per mg across every tracked supplier listing Glutathione in each currency, recorded daily from validated listings only. Days with too few listings to publish are left out, not estimated. How we validate prices

USD · median per mg

No validated daily statistics yet. A trend appears once there is more than one day of data.

GBP · median per mg

No validated daily statistics yet. A trend appears once there is more than one day of data.

Catalogue changes, last 30 days

No Glutathione listings added or withdrawn since we began recording catalogue changes.

Before you choose a Glutathione supplier

Price per mg is only half the comparison. Check that the supplier publishes a certificate of analysis for the batch it is selling, ideally from an independent laboratory, and that the certificate confirms identity as well as purity: our guide on how to read a COA shows what to look for. A price far below the rest of the list is more often a warning than a bargain; peptide prices explained sets out why.

For what Glutathione is and what published studies have found, see our Glutathione guide. Handling questions are covered in how to store peptides, and the peptide calculator converts a vial size and water volume into concentration and syringe units. Rules on buying and importing differ by country: read are peptides legal in the US? and see all suppliers serving the US.

Checking a Glutathione certificate of analysis

  1. The certificate names a laboratory you can find independently, and ideally one with no stake in the result.
  2. It carries a batch or lot number that matches the product page or the vial label, and a test date.
  3. It confirms identity by mass spectrometry, not only purity by HPLC. Purity alone does not show the vial contains Glutathione.
  4. It includes the chromatogram and mass spectrum, not just a summary table.
  5. Where the laboratory offers online verification of its reports, the report number checks out.

Red flags

  • No certificates at all, or certificates available only “on request”.
  • The same certificate used for several products or several years of stock.
  • Payment only by cryptocurrency or bank transfer, with a discount for paying that way.
  • A price far below every other supplier on this page.
  • No company name, address or way to contact the business other than a web form.
  • Vials labelled only with a code rather than the product name and strength.

How to spot a fake peptide supplier explains each of these in more detail, and third-party peptide testing covers what independent results can and cannot prove.

Vials, capsules and pre-mixed products

Most research peptides are sold as freeze-dried (lyophilised) powder in sealed vials, which is mixed with a diluent such as bacteriostatic water before use in the lab. Some suppliers also sell pre-mixed solutions, nasal sprays or capsules under the same name. These are different products with different stability and dosing, so compare price per mg only between the same form, and check which form a listing is before comparing it with the rest of the table.

Glutathione in the US: questions

Where can I buy Glutathione in the US?

67 of the suppliers PepFinder tracks list Glutathione and are based in or ship to the US. The highest rated are UK Peptides Online, Bulk Peptide Supply, BioPep. The list on this page is ranked by PepFinder Score, which weighs reliability, delivery, pricing, support and customer reviews; nobody pays to be included or to rank higher.

How much does Glutathione cost in the US?

Listed prices in USD run from US$0.01/mg to US$0.57/mg, median US$0.05/mg, across 79 listings from 49 suppliers. Compare price per mg rather than price per vial, and only within one currency; a price far below the rest is more often a warning than a bargain.

What sizes is Glutathione sold in?

Suppliers on this page list Glutathione in 200mg, 200MG, 400 mg, 500mg, 500MG, 10ML. Most research peptides are sold as freeze-dried powder in sealed vials; capsules, sprays and pre-mixed solutions are different products, so compare price per mg only between the same form.

Is it legal to buy Glutathione in the US?

The FDA treats research peptides sold for human use as unapproved new drugs and has said in 2026 warning letters that research-use-only labels do not change that. Our page on whether peptides are legal in the US sets out the rules with a link to every source. This is general information, not legal advice.

Can Glutathione be shipped to the US?

The FDA says it is illegal in most circumstances for individuals to import drugs for personal use, and shipments it considers unapproved drugs can be refused entry. Each supplier on this page shows where it is based, so you can see whether an order would cross a border.

How do I check a Glutathione supplier's test results?

Ask for a certificate of analysis for the batch being sold, and check that it names the laboratory, the batch number and the test date, and that it confirms identity by mass spectrometry as well as purity by HPLC. PepFinder has not yet collected certificates for Glutathione from these suppliers, so check each supplier's own site.

How this list is built: suppliers appear because they list Glutathione on their own website, read by our catalogue checks; nobody pays to be included or to move up. Ranking is by PepFinder Score. Prices, sizes and stock are as each site listed them when checked and may have changed. Provisional scores are based on incomplete research.