So where can you buy glutathione with a certificate?
We link to one supplier, Peptara Labs. On 2026-10-01 its glutathione page listed:
- a 600mg research-grade vial for $95 USD
- lot GTH-20260607-18, 97.12 percent purity by HPLC
- certificate COA-2026-9501, tested September 2026
- a store rating of 4.96 out of 5 across 401 verified orders
- tracked worldwide delivery in 5 to 10 business days
Links to Peptara Labs are affiliate links, and we may earn a commission when you buy through them.
You can see all of this on the glutathione page at Peptara Labs. It is research-grade material with no approved human use, and nothing here is medical advice.
What does the glutathione certificate show?
The store's certificates page lists these lines for the current lot, read 2026-10-01:
- lot GTH-20260607-18, certificate COA-2026-9501
- purity 97.12 percent by HPLC
- net content 608.23 mg in a 600 mg vial
- identity by HPLC retention time plus LC-MS
- tested September 2026 by Titreon Analytical
- second lab: none listed
Titreon Analytical is described on the live page as a third-party lab whose quality system is aligned to ISO/IEC 17025:2017, not itself accredited. We keep that qualifier with the name.
We did not download the PDF ourselves. The lines above are what the store prints on the certificates page.
What changed since September?
On 2026-09-01 the certificates page showed glutathione as pending, in testing. Earlier versions of this page were built around that.
On 2026-10-01 the certificate is published, with a lot code, a purity figure and a test month. So the honest answer changed, and this page changed with it.
What can you check yourself?
- Match lot GTH-20260607-18 and certificate COA-2026-9501 between the product page and the certificates page.
- Open the certificate PDF and read the test month and the lab name on it.
- Remember that 97.12 percent belongs to this one lot, not to other lots or products.
How we read pages and date each read is on how a state gets assigned here.
What does the research on glutathione settle?
Glutathione research is plentiful, and a research record is a different thing from a batch certificate. The pack we read on 2026-09-05 holds sixty one unique records. Here is what each kind of study can and cannot tell you.
One rule for this table: every count shows its study type, and we print no positive result. Printed without its endpoint, a positive result is meaningless. Printed with it, it becomes a claim about people.
So this table only shows null, mixed or unsettled findings, with links to the records for everything else.
[ four columns, scroll the panel sideways for the full row ]
| Model type in the pack | Records | What a record of this type can settle | What the pack records as still unsettled |
|---|---|---|---|
| Review | 24 | That a literature exists and that reviewers have described it. On its own a review settles nothing about an outcome. | Reviews file the clinical evidence for one application, not named here, as inconclusive, and ask for randomized trials that are bigger, run longer, and are clearer about what they measure. The same reviews tie limited absorption to questionable clinical efficacy there. Mechanisms in one area are described as not well understood, and clear causal relationships remain to be clarified. Records: 30895708, 27088927, 31484368, 35011559, 37946445. |
| Animal | 10 | That something was measured in a named animal model. | The pack carries no line translating any animal result to a person, and this site does not write one. |
| Human randomized trial | 7 | That randomized human work exists. This is the highest model type in the pack that reports an outcome. | Every human trial in the pack enrolled between 8 and 60 participants. One multicentre trial in one paediatric population reported no improvement on the outcomes it measured (32960827). Long term safety is not established for the application one trial studied (20524875). For one population, the reviewed trials do not support a general benefit conclusion (review, 38921002). |
| In vitro | 1 | That a cell-level observation was recorded. | The same record is the pack's source for the line that transport of this compound into cells is not effective (2619041). |
| Registered trial record | 18 | That a study was registered. A registration reports nothing at all about an outcome. | Eighteen unique, after the pack reduced two doubled records to one each. Exactly one of the eighteen registered titles prints this compound's name, and the set is not linked one record at a time. |
| Public regulator warning, reported inside a review | 1 | Direction only: one national regulator of medicines published a warning condemning use for off-label indications, after adverse effects were reported. | The pack names no regulator, no country and no date. And nothing in the pack records an approved therapeutic use for this compound (27088927). |
TYPED ROWS IN THE PACK EVIDENCE TABLE .. 42 (24 review, 10 animal, 7 randomized human, 1 in vitro) ONE FURTHER PAPER CITED IN PROSE, NO ROW +1 REGISTRY RECORDS .. 18 UNIQUE RECORDS IN TOTAL ................ 61 (63 citable in the source file; 2 doubled registry entries reduced to one each)
What counting them settles, type by type, is on what counting records settles.
Is glutathione approved for people?
No. This compound is research-grade material with no approved human use. Three products on the same list carry an approved human label for a specific indication. This isn't one of them, and we don't name them.
An approved label covers one indication in one defined group of people. It never shows a compound is approved, safe or reviewed for anything else. Nothing in the research pack records an approved therapeutic use for this compound either. More on the approval position in full.
What does the guarantee cover?
A published guarantee runs sixty days from delivery. It covers a batch that fails to test as its record states, or an order handled wrongly. Quality only, never a health outcome.
Now that the glutathione certificate is published, there is a record to check a batch against. Details are on the guarantee page. More on buying glutathione vials.
How do you trace a vial with no label?
Vials ship unlabelled on purpose, so no batch marking ends up on the vial. To trace it back, you message support with your order number.
That is one supplier's stated practice, read on its live page. The record at the end of that route is now a published certificate on the certificates page.
What do we cover, and what does research use mean?
We track documents: what the store's pages show on a dated visit, and what the research pack counts. We say nothing about what any material does for a person.
Research grade stays research material here, with no approved human use. This page isn't medical advice, and it gives no instructions to take or avoid anything.
Your questions, answered
Where can I buy glutathione?
We name one supplier we link to, Peptara Labs. On 2026-10-01 it listed glutathione as a 600mg research-grade vial for $95 USD, with lot GTH-20260607-18 at 97.12 percent purity on a published certificate.
We rank no seller and name no best place. Nothing here is a recommendation to buy.
Is there a published certificate of analysis for glutathione?
Yes, as of 2026-10-01. Certificate COA-2026-9501 covers lot GTH-20260607-18, tested September 2026 by Titreon Analytical, and it is published on the certificates page. On 2026-09-01 it was marked in testing.
What purity does the glutathione certificate show?
97.12 percent by HPLC, for lot GTH-20260607-18. A purity figure belongs to its own lot and certificate number, so we tie this one to that lot only.
Can I buy glutathione online with a published certificate of analysis?
With the one supplier we name, yes, as of 2026-10-01. Its glutathione page names the lot and links a published third-party certificate. Look for that match between the product page and the certificates page.
How do I find a legit place to buy glutathione?
Look for a certificate of analysis tied to the exact lot that would ship, published on the seller's own pages, and any QR or lab-portal check it carries. With the supplier named here, that certificate is published.
We record what the pages show and leave the reading to you.
Is glutathione approved for human use?
No. It's research-grade material with no approved human use. An approved label covers one indication in one defined group, and never shows a compound is approved, safe or reviewed for anything else. Related regulator record: 27088927. Next: the approval position in full.
Is glutathione a peptide?
The pack describes it as a tripeptide, which is why the word peptide comes up at all. What a molecule is tells you nothing about what a product containing it will do. Sources: 36707132 and 24791752.
How much published research is there on glutathione?
Sixty one unique records in the pack we read on 2026-09-05: forty three published papers and eighteen registry records. Counting records isn't weighing evidence. Next: what counting records settles.
Do the human trials settle anything?
They show randomized human work exists, and leave the rest open. The pack holds seven, each with between 8 and 60 participants. Reviews call the evidence for the use they study most inconclusive, and ask for bigger, longer, clearer trials. Sources: 32960827 and 30895708.
About the supplier we name
Is Peptara Labs a medical provider?
No. Peptara Labs sells research-grade material and written explanation. It diagnoses no condition, writes no prescription, promises no result, and holds no drug approval for what it sells.
Does Peptara Labs publish a certificate for glutathione?
Yes, as of 2026-10-01: certificate COA-2026-9501 for lot GTH-20260607-18, on its certificates page.