Published by Peptide Protocols · Reviewed September 2026 · How we make these pages · Educational & research purposes only — not medical advice.
"Longevity peptides" is one of the most-hyped corners of the whole space — which means a lot of noise. Here's the honest, plain-English map of what's actually studied, grouped by what it targets, with a full breakdown of each.
The longevity conversation increasingly centers on the cell's power plants:
Not everything marketed as a "longevity peptide" is what it claims. Klotho is a perfect example — it's a transmembrane protein, not an injectable peptide, and a lot of "klotho peptide" products are misleading. The same skepticism serves you well across this whole category: look for what the research actually supports, not the boldest claim.
For any injectable research peptide, the concentration drives every measurement — our cheat sheets + Excel logbook do that math. Vet the source first (COAs, purity ≥98%, research-use labeling — full supplier checklist), and check the 2026 FDA status.
We do not recommend or partner with any peptide supplier. Use the checklist instead: third-party COAs that match your batch and lot, stated purity, clear research-use labeling, real support and proper cold-chain shipping.
The supplier checklist →Educational content only. Confirm the legal status where you live before ordering anything.
The Longevity and NAD+/Cellular Energy cheat sheets put the research, reconstitution math, and a tracking logbook in one place.
See the Longevity guide on Etsy →The one formula, a BAC-water chart, and the 10 most-researched beginner peptides — the math done for you. Print it for the fridge.
🎁 Send me the free cheat sheet →