Is PNB-0408 the same as dihexa?

Yes. PNB-0408 is the lab code listed as another name on this site's dihexa profile. It names the same compound made from angiotensin IV, with a molecular weight of about 564 daltons. This site's review found no study in people, and the 2013 paper that introduced it carries an Expression of Concern. The code is a lab label, not a counted thinking result and not an approval. Full record at /compounds/dihexa.

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of cognitive and mood peptides. Selank, semax, cerebrolysin, and other nootropic and CNS peptides.