Price per mg is the fairest way to compare packs of different sizes, but it is not what you pay. You pay the pack price times the packs you need, plus shipping, in the store's currency. In the Sep 25, 2026 data, the lowest price per mg for all 34 peptides on the site came from a kit of 5 or more vials. For 32 of them, the store with that price was not the cheapest place to buy 10 mg.
Vendors sell these compounds as research chemicals, not for human use. This guide compares costs only.
Pack size: you pay for whole packs
A store sells packs, not milligrams. A kit with a low price per mg is only cheap if you need most of it. Two examples with round numbers:
- You need 10 mg. Store A sells a single 10 mg vial for $40. Store B sells only a kit of 10 vials at 10 mg for $100. Store B is $1.00 per mg against $4.00, but Store A is $60 cheaper for the amount you need.
- You need 100 mg. Store A needs ten vials, $400. Store B's kit is $100. Now the kit wins by $300.
With the site's default filters (in stock, Finnrick-listed stores), getting 10 mg from the store with each peptide's lowest price per mg cost a median $20 more than the cheapest store for that amount, and meant buying a median 100 mg. See kits vs single vials for the gap between the two price tiers.
Shipping: flat fees and free-shipping thresholds
The site read the shipping pages of 65 stores with prices on it. On Sep 25, 2026:
- 22 published at least one shipping fee. 6 of those said shipping is free on every order to at least one region.
- 14 published only a free-shipping threshold, with no fee for orders below it.
- 29 published neither, so their shipping cost shows only at checkout.
11 stores published a paid US rate. The cheapest method at each cost $7.99 to $45, with a median of $15. Five published a paid worldwide or international rate: three at $50, one at $80 and one at 30 euros (about $34). 26 stores published a free-shipping threshold, from $100 to $1,000. Half set it at $250 or less, and 7 at $500 or more.
A flat fee matters most on a small order. A $15 fee on a $40 vial raises the cost by more than a third. On a $300 kit it adds 5%, and above the store's threshold it may be nothing. An order just below a threshold can cost about as much delivered as one just above it.
Published figures don't always agree. At 4 stores, two pages or banners gave different free-shipping thresholds, so check the cart total before you pay.
Shipping can change which store is cheapest
The site's calculator was run on the Sep 25, 2026 data for every peptide at its five quick amounts, shipping to the United States, with the default filters: 170 cases. Among stores that publish a US shipping cost, the store cheapest before shipping was not the cheapest delivered in 53 of them. In those 53, it cost a median $19 more once shipping was added, and up to $35 more.
Minimum orders
Of the 113 live store sites whose policy pages the site read, 14 mention a minimum order. Three say there is none, and four apply one only to wholesale or bulk orders. Seven set one for ordinary orders: a number of vials or units, an amount such as 70 euros or $299, or a minimum that varies by product. A minimum can force a larger order than you planned.
Currency
Seven stores with prices on the site list them in another currency: three in pounds, two in euros, one in Canadian dollars and one in Australian dollars. The site converts every price to US dollars at the European Central Bank rate for the day.
The currency switch at the top of every page shows amounts in US, Canadian or Australian dollars, euros or pounds. At the Sep 25, 2026 rates, $100 was about 141 Canadian dollars, 88 euros, 75 pounds or 142 Australian dollars. The switch changes only what you see. The store charges in its own currency, your bank or card sets the rate you actually pay, and some cards add a fee on foreign purchases.
How to find the cheapest order
- Open a peptide page and go to "How much for N mg?", for example on the BPC-157 page.
- Enter the amount your research needs, or pick 10, 30, 60, 100 or 200 mg. For each store, the calculator finds the cheapest mix of whole packs that reaches at least that amount and shows what is left over.
- Pick a country under "Ships to". Stores that don't publish where they ship are hidden.
- Tick "Sort by total with shipping". The calculator adds each store's published rate for that country, or its worldwide rate, and applies free-shipping thresholds. Stores with no published shipping cost come after the rest.
- Confirm the total in the store's own cart. The calculator's totals are before tax, discount codes and any customs charges.
Figures are from the site's Sep 25, 2026 build and the stores' own pages read that day, converted at that day's ECB rates. Last reviewed Sep 25, 2026.