Safety & regulation
Status first. Everything else follows from it.
This is the section we consider most important on the site. Peptides are not one category, and a shared molecule name does not mean shared oversight, quality, or evidence.
The six status categories we use
- FDA-approved
A regulator reviewed manufacturing, evidence, and benefit-risk for a defined indication and population. Official labelling exists and post-marketing surveillance applies.
- Investigational
Under clinical study with ethics oversight and adverse-event reporting. No approved indication; benefit-risk is not established.
- Compounded
Prepared by a pharmacy or outsourcing facility for a specific clinical need. Not premarket-reviewed for safety, efficacy, or manufacturing quality.
- Research use only
A commercial label placing material outside medicine regulation. Not evaluated for human administration; purity and sterility are not assured.
- Cosmetic
Regulated for topical ingredient safety. No premarket efficacy review; therapeutic claims are not permitted.
- Preclinical
Studied only in cells or animals. Human effects, dose, and safety are unknown regardless of how strong the mechanism looks.
Safety & regulation
Peptide Safety
Safety is not a property of the word 'peptide'. It depends on the molecule, the dose, the product quality, the route, and the person.
Safety & regulation
Side Effects
How adverse effects are detected, classified, and reported — and how to read a side-effect list without either dismissing or catastrophising it.
Safety & regulation
Approved vs Investigational vs Compounded
The single most important distinction in this field, stated plainly: three different regulatory situations that are routinely conflated.
Safety & regulation
Research Use Only, Explained
'Research use only' is a commercial and legal framing. It is not a quality certification, and it does not indicate suitability for human use.
Safety & regulation
FDA Status
How to check what a regulator has actually said about a peptide, and how to read the difference between silence, warning, and approval.
Safety & regulation
Compounding
What compounding is legitimately for, how oversight works, and why peptide compounding has drawn sustained regulatory attention.
Safety & regulation
Sport & WADA
Many peptides discussed online are prohibited in sport at all times, including compounds with no approved medical use.
Safety & regulation
Regulatory Glossary
Precise definitions for the regulatory terms that determine what a peptide product actually is.
Editorial disclaimer
This site is educational and does not provide medical advice, dosing protocols, or treatment recommendations. Regulatory status and evidence strength differ sharply between compounds. A “research use only” label does not indicate that a product is appropriate for human use. Decisions about medicines belong with a qualified clinician.