A directory of research-peptide vendors, checked daily: whether each one is trading, what every listing costs per milligram, and a registry of results from independent third-party laboratories. It does not rank vendors, and no vendor can pay for a better position.

Do vendors pay to be listed or to receive a grade?

No. Vendors cannot pay to be tested, to influence a result, to have a result withheld, or to change a published grade. Some outbound links are affiliate links and some placements are paid, and both are labelled wherever they appear. The full policy is on the methodology page.

Why is the batch registry empty?

Because no batch has completed testing and review yet. Publishing placeholder results would defeat the purpose of the registry, so it shows an empty state until the first blinded purchases come back from the laboratory.

Where do the prices come from?

From each vendor’s own public store data, read directly and recorded with a source URL and a timestamp. Vendors whose sites disallow automated access in robots.txt, or that publish no structured product data, are left blank rather than estimated.

Checked daily · Research use only

What is actually in the vial.

The research-peptide market, checked daily: who is open, and what it really costs per milligram.

Open the price tracker How we test

Widest observed spreads

cheapest → dearest $/mg

SLU-PP-33257.78×
$9.00$519.96
GHK-Cu44.91×
$0.055$2.47
Glutathione37.24×
$0.0064$0.240

Every compound and its spread →

Current coverage

1248

Price observations

Across 37 vendors with public store data

Vendors tracked

47 trading, 6 closed

Compounds catalogued

Verified batches

First blinded results in progress

The measurement

A cheap vial is not cheap if it is 80% something else.

Two numbers decide whether a purchase was good value, and vendors publish only one of them.

Sticker price per milligram divides price by the mass on the label. Cost per verified milligram divides it by the mass that a laboratory found was actually the compound. Where a certificate of analysis is supplied by the seller, is undated, or names no reference standard, the first number is the only one a buyer has — which is precisely the gap this registry exists to close.

Cost-per-verified-mg calculator Testing methodology

Best observed $/mg

Glutathione$0.0064/mg
GHK-Cu$0.055/mg
NAD+$0.076/mg
AHK-Cu$0.460/mg
SNAP-8$0.630/mg
5-Amino-1MQ$0.945/mg

All 53 compounds with observed prices →

Discipline

What gets published, and what gets refused.

Both lists are set out in full on the methodology and disclosures pages. They are repeated here because the second one is the reason to trust the first.

Published, always

Every price with the URL it was read from and the timestamp it was read at.
Both purity figures on every result — what the label claimed, what the laboratory measured — and the delta between them.
The laboratory, the method, the lot number as printed, and the chain-of-custody note.
Failing results, for a vendor VialPost earns commission from exactly as for one it does not.
Corrections on the record where the error appeared, with the original figure left visible.
Every dated vendor closure, with the source that reported it.

Full methodology →

Refused, always

Estimated prices: A vendor that publishes no readable store data gets an empty cell.
Placeholder results: The registry stays empty until a laboratory returns a number.
Paid grades: No vendor can pay to be tested, to influence a result, or to have one withheld.
Free vials: Every tested vial is bought at full retail through an ordinary customer account.
Advance sight: No vendor sees a result before it is published.
Dosing guidance: No dosing, medical, therapeutic or administration guidance of any kind.

How this site makes money →

Verified batch registry

The registry is empty, and says so.

Every result published here comes from a vial bought at retail like any other customer, stripped of its labels, and assayed by a third-party laboratory.

No batches published yet — first blinded results in progress

When a result is ready it appears here in full, pass or fail, with the lot number, the claimed and measured purity, the method, the laboratory and the chain-of-custody note. See what a published result contains.

Vendor status

Vendors close, and buyers find out late.

Closures, enforcement actions and sentencings, each with the source that reported it and the date it happened.

53 vendors · scroll for the rest

Full vendor status board →

Questions

Frequently asked

What is VialPost?: A directory of research-peptide vendors, checked daily: whether each one is trading, what every listing costs per milligram, and a registry of results from independent third-party laboratories. It does not rank vendors, and no vendor can pay for a better position.
Do vendors pay to be listed or to receive a grade?: No. Vendors cannot pay to be tested, to influence a result, to have a result withheld, or to change a published grade. Some outbound links are affiliate links and some placements are paid, and both are labelled wherever they appear. The full policy is on the methodology page.
Why is the batch registry empty?: Because no batch has completed testing and review yet. Publishing placeholder results would defeat the purpose of the registry, so it shows an empty state until the first blinded purchases come back from the laboratory.
Where do the prices come from?: From each vendor’s own public store data, read directly and recorded with a source URL and a timestamp. Vendors whose sites disallow automated access in robots.txt, or that publish no structured product data, are left blank rather than estimated.

Get new batch results

One email when a batch is published or a vendor status changes. No product promotions.