Site answer

Why does a row say "Last known: in stock"?

That row was not reconfirmed in the latest refresh, so its stock (and price) are carried from the previous check. pepmg labels it rather than presenting an old reading as current.

Rows that were reconfirmed show plain "in stock" or "out of stock". The vendor's own listing is always the final word on current stock.

From: Methodology › Reading a price row

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.