Peptides, explained without the hype.
What they are, what the research actually supports, and what's still unknown. No selling — just the groundwork to read the rest of the site.
What is a peptide?
A peptide is a short chain of amino acids — the same building blocks that make up proteins, just fewer of them. Your body already makes thousands of them to signal cells, repair tissue, and regulate metabolism. The research compounds catalogued here are synthetic versions studied for specific effects. Most are not approved for human use and are sold for research only.
82 peptides indexed so far — each with mechanism, dose range, and the research behind it.
Find the research by what you're after.
Six broad areas these compounds get studied for. Pick one to jump into the directory.
Healing & recovery
Studied for tendon, ligament, and gut-tissue repair.
BrowseMetabolic & weight
GLP-1 class and related metabolic compounds.
BrowseGrowth hormone
Secretagogues that prompt the body's own GH release.
BrowseCognitive & mood
Studied for focus, memory, and stress.
BrowseLongevity & cellular
Compounds studied for aging and cellular repair.
BrowseSkin, hair & cosmetic
Topical and cosmetic-focused peptides.
BrowseNot all evidence is equal.
Every claim on the site is tagged by where it comes from. From strongest signal to softest:
- 1
Human trials
Tested in people. The strongest signal, and the rarest for these compounds.
- 2
Animal studies
Most peptide research lives here. Promising, but doesn't always translate to humans.
- 3
Lab / mechanistic
Shows how something works in a dish, not whether it works in a body.
- 4
Clinical pearls
What clinicians and experienced users report. Useful context, not proof.
Why we obsess over COAs.
A Certificate of Analysis is an independent lab's measurement of what's actually in a vial — purity, identity, and sometimes contaminants. In a grey market with no FDA oversight, the COA is the closest thing to ground truth. We catalog them so you can check the evidence yourself instead of trusting a label.
Every COA on file links back to the lab that ran it and the vendor whose product it tested — so you can trace the number, not just take it.
Before you go further.
Most compounds on this site are sold for research use only and are not approved for human use. Nothing here is medical advice. Talk to a clinician who knows your full health picture before making any decision. We catalog evidence; we don't tell you what to put in your body.
Research use only — not for human consumption and not approved by the FDA. Nothing here is medical advice.