Peptide price comparison: every vendor’s price per mg, and who is behind each store.
The peptide industry runs on anonymity. We tie storefronts back to the public record and price every vendor nightly — so you decide with facts, not hype. Use it as a peptide price tool: compare peptide prices per mg for 44 peptides across 257 US vendors with live prices.
Stores cannot pay to change a listing, ranking, trust tier or prices. Some vendors pay a commission on orders placed with their discount code or through our links; this never affects the data shown. Prices are publicly listed vendor prices, ex-shipping, normalized to $/mg and updated nightly.
Vendors with the strongest public record
Our Verified vendors — storefronts tied to a real, named operator — first, then the strongest Established ones. Each card shows its own tier. A tier is a transparency signal, not an endorsement.
What researchers are pricing
The most-listed compounds, with the live $/mg spread across every US vendor we track.
How our peptide price comparison works
The peptide prices on this site are publicly listed vendor prices, put on one scale so any two can be compared. As of the latest nightly update, the index covers 44 peptides, 257 US vendors with live prices and 7,270 current listings.
Listed prices, read nightly
Every night we read each vendor’s public product pages and record the price shown for each vial size. Shipping and temporary sale prices are left out.
One scale: dollars per mg
A 5 mg vial and a 10 mg vial cannot be compared by sticker price. Dividing each price by its stated milligrams gives a $/mg figure that can.
Lowest, median and middle half
Each peptide page shows the lowest listed $/mg, the median and the middle half of listings, so one odd listing does not set the picture. Blends and multipacks are kept out.
A dated 90-day history
Each peptide page keeps a dated 90-day price history of the daily median, with days the crawl missed left out rather than filled in.
How a vendor earns a tier
Every tier is built from primary public records — each signal linked back to its source, so you can check our work.
Legal entity & filings
We match each storefront to a registered business — LLC/Inc filings, trademark ownership, agent of record — and link the record.
Domain & TLS footprint
Registration age, hosting, and certificate history separate an established operation from a week-old shell.
Enforcement screen
We screen for FDA warning letters and agency actions, attributed to the source as a matter of public record.
Ownership signals
Shared operators, addresses, and networks surface who is really behind a cluster of storefronts.