Empty nester sorting peptide chatter from actual recovery needs

I'm in my late fifties, an empty nester down 32 pounds since spring, and my new habits are simple: a 40-minute walk after breakfast and Sunday soup batches so weeknights don't fall apart. The part I didn't expect is how often peptide names show up now — Dihexa, Cerebrolysin, P-21, IGF-1 LR3, Pinealon, SLU-PP-332, myostatin inhibitors. I’m not chasing a shortcut or planning to self-experiment. I’m mostly wondering whether any of these belong in a real conversation with a doctor when the goals are steady strength for hikes and sharper focus for a possible career pivot. Has anyone here actually talked through that list with a clinician, or is it mostly noise that follows weight-loss forums around?