What about Semax, Selank and dihexa?

Where do those names appear?

In an ingredient name, acetate marks a particular version of that substance. Copy the full name for the pharmacist to check.

FDA, the U.S. drug agency, lists semax, selank acetate and dihexa acetate among requests to allow ingredients for medicines made to order. Those requests were later taken back.

FDA marked that page current as of April 22, 2026. The entries were still there at a September 2026 check. These dates do not mean the medicines were approved.

Does taking a request back mean the ingredient may be used?

Withdrawing a request gives no permission to compound with that ingredient, as of September 2026.

FDA still displays its concerns about possible harm beside these ingredients.

Did the Semax meeting change that?

Semax was on the agenda for the FDA advice meeting held in July 2026.

The FDA staff proposal was to exclude Semax from the official list allowing additional ingredients in compounded medicine.

An official account of that panel’s vote was absent from FDA’s posted material at the September 2026 check.

Advice from the panel does not, on its own, let a pharmacy use an ingredient in medicine made to order.

What does this tell me about memory?

The request asks whether an ingredient may be used to make medicine to order. It does not show whether the medicine helps memory or focus.

Ask for a study in people that tests the claim made in the offer.