About The Peptide Companion

Peptide research is scattered across FDA press releases, clinical trial registries, medical journals, and regulatory dockets published by institutions all over the world, rarely in one place, and rarely in language a non-specialist can follow. The Peptide Companion exists to close that gap: to compile what is publicly known about each peptide into a single, accurate, continuously updated reference, and to present it in a way that is genuinely easy to read and understand, without sacrificing the precision that makes it trustworthy.

We built this site because we believe an accurate, well-sourced reflection of what is actually known about a compound, not what a vendor wants you to believe, and not what a social media post claims, is the foundation of a good decision. The Peptide Companion does not tell you whether to use a peptide. It aims to make sure that when you do decide, and when you raise the question with a licensed medical professional, you are doing so from a position of genuine understanding.

Peptide science does not stop at any one country’s border. Some of the most consequential peptide research and regulatory decisions have come from outside the United States: nootropic peptides developed and approved for clinical use in Russia and Ukraine, tissue-repair research conducted by university groups in Croatia, and drug approvals reviewed by the European Medicines Agency and the World Health Organization. The Peptide Companion deliberately compiles information from this full global landscape, rather than limiting its scope to FDA-approved compounds alone, because a complete picture requires it.

Every profile on this site is built to accurately reflect the known details behind a peptide: its mechanism of action, the research and regulatory status it currently holds, documented benefits and risks, and the compounds it is often studied or used alongside, sourced and dated so nothing is presented as more settled than the evidence supports.

Every factual claim on The Peptide Companion is sourced to one of the following, and labeled directly on the page so it can be independently verified:

• 🏛️ Government Health Agencies. FDA, NIH, CMS, and international equivalents including WHO and EMA
• 📚 Peer-Reviewed Journals. NEJM, JAMA, The Lancet, BMJ, Annals of Internal Medicine, and specialty journals
• 🔬 Clinical Trial Registries. ClinicalTrials.gov and equivalent international trial databases
• 📰 Reputable News Organizations. Outlets with established science and health desks and editorial standards

We do not source factual claims from blogs, unverified wellness sites, vendor marketing copy, or social media influencers, even when those sources are popular. If credible evidence does not exist for a claim, The Peptide Companion says so, rather than filling the gap with speculation.

The Peptide Companion is built for anyone trying to understand peptides, whether you are exploring treatment options, researching on behalf of a family member, working in clinical practice, or simply curious about a compound you saw mentioned elsewhere. You do not need a scientific background to use this site. Every peptide profile pairs detailed, technically accurate information with a plain-English summary, and the Dictionary of Terms defines the medical and scientific vocabulary used throughout, both a detailed and a simplified explanation for every entry.

⚠️ The Peptide Companion is an educational resource, not a medical provider. Nothing on this site should be used to diagnose, treat, or make a treatment decision on its own. If you are considering peptide therapy, the right next step is a conversation with a licensed healthcare professional who knows your medical history. This site exists to help you have that conversation well-informed.

Peptide science moves quickly: new studies publish, regulatory status changes, and clinical trials report results on an ongoing basis. Our Recent News section tracks FDA actions, peer-reviewed publications, and reputable news coverage as they happen, so The Peptide Companion reflects the current state of the field rather than a fixed snapshot. Our goal is for The Peptide Companion to become the reference researchers, clinicians, journalists, and curious readers turn to first, a single, trusted destination for understanding what is known, what is still uncertain, and what has recently changed across the peptide industry.

What is The Peptide Companion?

The Peptide Companion is a free, independent, and continuously updated encyclopedia dedicated to peptides, the short chains of amino acids studied and used across medicine, longevity science, sports recovery, and everyday wellness. The site compiles publicly available research and regulatory information from institutions and publications around the world into one place, organized by peptide name, treatment focus, documented benefit, and known peptide stacks.

Is The Peptide Companion a reliable source of information about peptides?

The Peptide Companion draws exclusively from government health agencies (including the FDA, NIH, and CMS), peer-reviewed medical journals (including NEJM, JAMA, The Lancet, BMJ, and Annals of Internal Medicine), international regulatory bodies (WHO, EMA), and reputable news organizations with established health and science desks. The site does not source information from blogs, vendors, or social media influencers, and every sourced claim is labeled with its origin so readers can verify it directly.

Does The Peptide Companion provide medical advice?

No. The Peptide Companion is an educational reference, not a substitute for professional medical care. It is built to help people understand what is currently known, and not known, about a given peptide, so they can have an informed conversation with a licensed physician about whether peptide therapy might be appropriate for their situation. Every peptide profile includes a clear reminder that the information provided is for research and educational purposes only.

Who is The Peptide Companion for?

The Peptide Companion serves anyone trying to make sense of the fast-growing peptide landscape: people exploring treatment options, caregivers researching on behalf of a loved one, clinicians looking for a quick regulatory or mechanism refresher, and researchers who want a clear, non-commercial reference point. The site favors plain language over jargon so it stays accessible to first-time readers, while linking every claim back to its original source for those who want to go deeper.

How is The Peptide Companion different from other peptide websites?

Most peptide content online is written either for specialists, in dense clinical language most people have to work to get through, or by vendors with a financial incentive to make a compound sound more proven than it is. The Peptide Companion is built around a different goal: taking genuinely complex, technical research and translating it into language anyone can actually use, regardless of whether they’re new to peptides or already deeply familiar with the science. Every peptide profile pairs a detailed explanation with a plain-English one, so a first-time reader and a longtime researcher can both find what they need on the same page. The goal is to leave you better equipped to make your own informed decisions and ask better questions, not to point you toward a purchase. That commitment to plain language and independence is what we mean by becoming a trusted source people can rely on, whatever their starting point.

How often is The Peptide Companion updated?

The Recent News section tracks FDA actions, new clinical trial results, peer-reviewed publications, and coverage from major news organizations as they happen, so the site reflects the current state of peptide research and regulation rather than a fixed snapshot in time.

Can I use The Peptide Companion to decide whether to try a peptide?

The Peptide Companion is designed to prepare you for that conversation, not to replace it. Its goal is to leave you significantly better informed before you speak with a licensed healthcare provider, with a clear picture of what a peptide is, what evidence exists for and against its use, its legal and regulatory status, and the open questions researchers are still investigating.

What are The Peptide Companion’s Terms of Use?

The full text is on its own page: Terms of Use.

Looking for answers about peptides themselves? Our FAQ page covers the 50 questions people most often ask, from general basics to safety, legality, and specific compounds.

View Peptide FAQs