This category was built on overclaim. Our answer is a method you can audit: an evidence grade on every molecule, a separate plain-English verdict on whether you can actually get it, and an honest line about what we still don't know.
The grade answers one question only, how strong is the human evidence?It is not a recommendation, a safety score, or a measure of how exciting a molecule sounds. It tracks the quality and quantity of studies in people.
"Is the evidence strong?" and "Can I actually get it?" are different questions, so we answer them with two separate signals, and we never let one stand in for the other. A molecule can be grade A and still not be available; another can be available now and still be grade D.
How good the human science is. Owned by this Knowledge Base and our medical reviewer.
Whether you can legitimately get it today. Owned by the FDA Tracker, the Knowledge Base consumes it, never invents it.
Most of what we cover are true peptides. A few, NAD+, rapamycin, metformin, are related longevity compounds, not peptides. We cover them because people ask, and we label them plainly so nothing here is ever misrepresented as something it isn't.
Grades are dated, not permanent. A new randomized human trial, a published replication, a safety signal, or a regulatory action can move a grade or a verdict, and we timestamp every change. When the FDA Tracker logs a status change, the matching monograph is flagged for a freshness pass.