Glutathione
$79.99
Glutathione: tripeptide gamma-Glu-Cys-Gly, 307.32 Da, lyophilized powder. Lot 2026-08-05 reads 99.76% HPLC purity, endotoxin negative, tested by MZ Biolabs. Read the COA. Free shipping over $150 and same-day dispatch from the USA. Research use only, 21+.
| Title | Range | Discount |
|---|---|---|
| Save 3% | 3 - 4 | 3% |
| Save 5% | 5 - 9 | 5% |
| Best Value - Save 10% | 10 + | 10% |
Description
What is glutathione?
Glutathione is the tripeptide gamma-L-glutamyl-L-cysteinyl-glycine (307.32 Da, C10H17N3O6S), present in most cells. It oxidizes easily, which is why its storage conditions matter. Peptryn supplies it as a 1500mg lyophilized laboratory material.
Glutathione specifications
| Compound | Glutathione |
|---|---|
| Size | 1500mg |
| Form | Lyophilized powder |
| Molecular weight | 307.32 Da |
| Formula | C10H17N3O6S |
| CAS number | 70-18-8 |
| Solubility | Water-soluble (oxidation-sensitive) |
Lot testing and COA
The latest published report is for lot 2026-08-05: 99.76% purity by HPLC-UV-MS and a negative endotoxin result, tested by MZ Biolabs. The certificate links to the laboratory’s own report, so you can check it without relying on us.
Glutathione 1500mg COA · COA Library
Ordering
Orders placed on peptryn.com ship from the USA with same-day dispatch, and shipping is free on orders over $150. For a question about a lot or a size, email [email protected].
Storage
Store at -20°C, protected from light, moisture and oxygen.
Frequently asked questions
What is glutathione?
Glutathione is the tripeptide gamma-L-glutamyl-L-cysteinyl-glycine, about 307 Da, present in most cells. Peptryn supplies it as a 1500mg lyophilized laboratory material.
What purity is Peptryn’s glutathione?
Peptryn’s glutathione is verified at 99.76% purity by HPLC-UV-MS, tested by MZ Biolabs (lot 2026-08-05). Read the COA. HPLC purity is area percent, the share of the main peak among all detected peaks; see our guide to peptide purity for what that means.
How is glutathione stored?
Store at -20°C, protected from light, moisture and oxygen.
What is glutathione’s CAS number?
Glutathione’s CAS number is 70-18-8. Molecular weight: 307.32 Da.
Is glutathione for human use?
No. Peptryn sells it for laboratory research only, and it is not approved for human or veterinary use. We do not give dosing or administration guidance.
Is glutathione peptide legal to buy?
Yes, as a research chemical for laboratory use. Peptryn sells it strictly for research, not for human use, and you must be 21 or older to order. See our guide to peptide legality.
Related: Glutathione peptide guide · What is a COA? · Peptide testing · Popular peptides
For laboratory research use only. Not for human or veterinary use, and not a drug, food, dietary supplement or cosmetic. You must be 21 or older to buy.
Additional information
| Size | 1500mg |
|---|---|
| Molecular Weight | 307.32 Da |
| Molecular Formula | C10H17N3O6S |
| CAS Number | 70-18-8 |
| Form | Lyophilized powder |
| Purity | Reported per lot on the COA (HPLC-UV-MS) |
| Storage | -20°C; protect from light, moisture, and oxygen |
| Solubility | Water-soluble (oxidation-sensitive) |
Certificate of Analysis
Every batch of Peptryn peptides is independently tested by a US-based laboratory. Purity, identity, and molecular weight are verified by HPLC and mass spectrometry before any vial ships. View your batch's certificate of analysis in our lab results library.
View COA Library