How to compare peptide prices
Price per milligram is the fairest single number, and our peptide price index ranks every peptide by it. But what you pay depends on the vial sizes a vendor sells. This tool works out the real total for the amount you need, so a vendor with a bigger vial at a slightly higher per-mg price can win.
Price isn't everything
A cheap vial is only a bargain if it's what the label says. Leave "Only products with a COA" on to compare vendors that publish a certificate of analysis for that product, and read the vendor's review for its lab, lot matching and independent Finnrick tests. Our COA checklist shows what to look for.
More ways to save
See this week's peptide deals for sales and price drops, and our verified coupon codes. Compare vendors on testing in the vendor directory.
Frequently asked questions
How does the peptide price comparison work?
For the peptide and amount you choose, we take every in-stock vial each vendor sells, work out how many vials of each size you'd need to reach that amount, and keep the cheapest option per vendor. Vendors are then ranked by that total, after our discount code if you leave codes on.
Where do the prices come from?
From our weekly price check of each vendor's own store, the same data as our price index. Each vendor's review shows the date and the full list of prices we checked.
Why isn't the cheapest price per mg always the cheapest total?
Vial sizes matter. If you need 15 mg and a vendor only sells 10 mg vials, you pay for two vials. A slightly dearer vendor with a 15 mg or 20 mg vial can be cheaper overall, and the tool shows that.
Does this include shipping?
No. Shipping, taxes and minimum-order rules differ by vendor and change often, so totals are product prices only. Check the vendor's checkout before ordering.
Are these products for human use?
No. Research peptides are sold for laboratory research only, are not FDA-approved and are not for human or animal use. This tool compares prices; it gives no dosing information.
More free tools
- Peptide reconstitution calculator (U-100 and U-40)
- BAC water calculator
- Peptide unit converter (mg, mcg, IU, mL and units)
- COA checklist
- Vendor testing tracker
Choosing a supplier? See the best peptide vendors in the USA.