Site answer

Where do the prices come from?

Every price is read directly from the vendor's own live store, the same public product feed its storefront runs on, then timestamped with when and where it was fetched.

pepmg reads public data only: no logins, no bypassing a technical block, no personal data. The row links back to the page it was captured from.

From: Methodology › Collection

All help topics · Answers restate pepmg's own pages; the linked section is the authority.

All products listed are sold by third-party vendors for laboratory and research use only (RUO). Where an FDA label or a peer-reviewed study has published a dose, pepmg reports it with the source named, because that is safer than guessing. It is a report, not medical advice and not a recommendation to use anything. pepmg sells nothing and ships nothing. Listings are price-tracking data, not endorsements.