The Peptide Library
Research-backed peptide education. What the science says, what the law says, what’s actually available.
Every compound below links to published research. We separate what’s been studied in animals from what’s been tested in humans, and tell you the current legal status so you’re never guessing.
Available now
Physician-prescribed peptide therapies you can start today.
Compounded in the USA by licensed 503A pharmacies. No hidden overseas supply chain.
Research Purposes Only
Peptides currently classified FDA Category 2.
Cannot be legally compounded by US pharmacies today. Read the research below. For clinician-led peptide care in these areas, our programs route you to legally available alternatives.
Primer
What are peptides?
Peptides are short chains of amino acids, the same building blocks that proteins are made of, just smaller. Your body produces thousands of peptides naturally, where they act as signaling molecules: telling cells when to divide, when to heal, when to release a hormone, when to sleep.
Therapeutic peptides take advantage of that signaling language. Some are identical to peptides your body already makes. Some are synthetic analogs designed to bind a specific receptor for longer or more reliably than the natural version.
In the US, compounded peptides are prepared under 503A compounding rules by US-licensed pharmacies under a clinician’s prescription. They are not FDA-approved in the same way branded drugs are. The FDA classifies specific peptides into bulk-substance categories that determine whether they can be legally compounded, we explain that in the Guides below.
Guides
No-jargon primers for readers who want to understand peptides first.
Ready to get started?
Take a 3-minute assessment and a licensed clinician will recommend the right protocol for your goals.