Peptides, with the risks left in
An independent guide to what peptides are, what has actually been tested in people, and what the FDA has said about them.
Human data first
Every guide says whether a finding comes from cells, animals or people.
Regulators, cited
Legal and safety claims name the FDA notice, drug label or WADA rule behind them.
Nothing to sell
We sell no peptides, link to no sellers and publish no doses.
Our Mission
Peptides Risks exists because most of what is written about peptides online is written by people selling them. We publish the other half: what has and has not been studied in humans, what the FDA and anti-doping agencies have said, and the warning signs that need a doctor. We never publish doses, protocols or places to buy, and no seller pays to appear here.
Steve Levine
Founder & Editor
Steve Levine founded and edits Peptides Risks, an independent reference on the safety, evidence and legal status of peptides sold as medicines, supplements and research chemicals. Every claim on the site names the regulator, the drug label or the study behind it, and says what that study was done in. He is not a physician, and nothing on the site is medical advice. He builds consumer reference sites focused on transparency and consumer safety.
Connect on LinkedInFrequently Asked Questions
Are peptides legal?
Some are FDA-approved prescription drugs, such as semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound). Many of the peptides sold online are not approved for any human use. Several popular ones, including BPC-157 and TB-500, were in the FDA’s compounding Category 2 for substances that may present significant safety risks until their nominations were withdrawn; as of April 2026 the FDA lists them as withdrawn, which leaves them outside the FDA’s compounding enforcement policy rather than approved. What the FDA rules say and what changed in 2026.
Is BPC-157 safe?
Nobody can say, because it has not been through the human trials that would show it. Nearly all BPC-157 research is in animals and cell cultures. The FDA has published concerns about its risk of immune reactions and peptide-related impurities. What the BPC-157 research does and does not show.
What does “research use only” mean on a peptide?
It means the seller is not claiming the product is safe or effective for people, and is not selling it as a drug. It is not a quality grade. What the label tells you about the product.
Is compounded semaglutide still allowed?
In February 2025 the FDA announced that the semaglutide shortage was resolved. Compounders had been allowed to make copies because of the shortage, and that allowance ended after a transition period. Brand versus compounded semaglutide.
What are the most common side effects of GLP-1 drugs?
The prescribing information lists stomach effects such as nausea, vomiting, diarrhea and constipation as the most common. The serious risks it warns about include pancreatitis, gallbladder problems and a boxed warning about thyroid C-cell tumors seen in rodents. GLP-1 side effects and when to call a doctor.
How can I tell if my Ozempic pen is counterfeit?
The FDA has warned about counterfeit Ozempic found in the U.S. drug supply. Buy only from a licensed pharmacy with a prescription, check the packaging and lot number against the manufacturer’s guidance, and report a suspect pen to the FDA. The signs to check.
Are peptides banned in sport?
Many are. The WADA Prohibited List bans peptide hormones, growth factors and growth hormone releasing factors, and it names BPC-157 among non-approved substances, which are banned at all times. What the WADA list covers.
Do collagen peptide supplements work?
The evidence is mixed and much of it is industry-funded. Collagen powders are dietary supplements, which the FDA does not approve for effectiveness before they are sold. What the human trials measured.
Does Peptides Risks sell peptides or recommend sellers?
No. We do not sell peptides, link to sellers or publish doses, and no company pays to appear on the site.
Is this medical advice?
No. It is general information. Talk to a doctor or pharmacist before starting, stopping or changing any medicine.