166+ Verified Peptide Suppliers | Compare Prices & Reviews

What to verify before ordering

The table narrows the field; these six checks decide the order. Each one is something you can confirm from the supplier's own site or profile in a few minutes.

1. 1

   A certificate of analysis for the exact batch

   Ask for the COA by lot number and check it names an independent lab, an HPLC purity figure and a mass-spec identity match. A generic "99% pure" image with no lot number is marketing, not testing.

2. 2

   Who owns the store

   A registered business name, a physical return address and a working support channel. Verified profiles on this page have documented their identity to our team; community-listed profiles have not been claimed at all.

3. 3

   Price per milligram, not price per vial

   Two suppliers can list the same compound at $40 and $60 while the cheaper vial holds half the mass. Compare the median $/mg column, then confirm the vial size on the product page before ordering.

4. 4

   Payment method and refund terms

   Card and PayPal payments give you a dispute path; wire, Zelle and crypto generally do not. Read the refund and reshipment policy before choosing a method that cannot be reversed.

5. 5

   Shipping origin and storage

   Where the parcel ships from decides transit time, customs exposure and how long a lyophilized vial travels unrefrigerated. Suppliers that state their origin are listed in the "Ships from" column.

6. 6

   Independent reviews, across platforms

   Read on-site reviews together with Trustpilot and forum history, and weigh recent reviews more than old ones. We do not remove negative reviews at a supplier's request — moderation only covers spam, doxxing and off-topic content.