The Institute for Biological Design is a research and educational resource. It is not a clinic, it does not sell peptides, and it does not recommend or link to any supplier.
Our purpose is straightforward. The peptide research landscape is one of the most consequential frontiers in modern biology — touching metabolic medicine, regenerative therapy, neurology, immunology, and longevity. But for the curious reader, the available information is fragmented, often promotional, and frequently disconnected from the underlying science. Forums and vendor sites overstate; clinical journals undertranslate.
This reference exists in the middle: rigorous enough for the careful reader, plain-language enough for the curious one. Every entry follows the same architecture: an evidence grade, a plain-language overview, the mechanism of action, research findings separated into human, animal, and cell studies, safety and side effects, open questions, regulatory status, and numbered references. You can scan, compare, and verify without relearning a new format on every page.
Every entry carries a single letter grade. It does not rate how promising a compound sounds. It rates what kind of research actually exists, because a striking result in rats and a confirmed result in a large human trial are not the same thing.
Within each entry, findings are separated into human, animal, and cell studies, and every claim links to a numbered reference. Where most of a compound's research comes from a single laboratory, or where trials were started but never published, we say so.
It is not medical advice. Nothing on this site should be interpreted as a recommendation for diagnosis, treatment, or self-administration of any compound. Always consult a qualified healthcare professional before considering any health decision.
It is not exhaustive. The peptide research field is moving rapidly. New compounds appear in the literature constantly, and existing entries may not reflect the most recent published findings. We update periodically and welcome corrections.
It is not a substitute for primary literature. Where you want depth, the source publications are always the right place to read further. This reference is the map, not the territory.
This is informational only. Nothing here is a medical recommendation. Research peptides are not a shortcut to vitality — they are a window into how the systems already inside you are designed to work. Read with curiosity, not certainty. Trust the science, not the supplement.
Search the full reference or jump into any of the thirteen research sections.