Quick answer: are peptides controlled substances? In the U.S., almost never. None of the common peptides, including BPC-157, TB-500, GLP-1 drugs and human growth hormone, appears on the DEA’s list of controlled substances.[2] Anabolic steroids are different: they are Schedule III. And HGH, though unscheduled, has its own felony rule under 21 U.S.C. 333(e), with up to 5 years in prison for distribution outside medical use.[3][4]
“Not controlled” does not mean “legal to sell.” Most peptides sold online are unapproved drugs, which puts them under FDA rules instead. This guide sorts out who regulates what. For the FDA side, see our FDA and regulation hub and the FDA peptide ban 2026 explainer.
What makes something a controlled substance?
The Controlled Substances Act (CSA) sorts drugs into five schedules, enforced by the Drug Enforcement Administration (DEA). The law sets the criteria for each:[1]
| Schedule | Abuse potential | Accepted medical use | Examples |
|---|---|---|---|
| I | High | None in the U.S. | Heroin, LSD |
| II | High | Yes, with severe restrictions | Fentanyl, oxycodone |
| III | Less than I or II | Yes | Anabolic steroids, ketamine |
| IV | Low relative to III | Yes | Benzodiazepines |
| V | Low relative to IV | Yes | Some cough preparations with codeine |
A substance becomes controlled only if Congress or the DEA puts it on a schedule. If it isn’t listed, the CSA does not apply.
Are any peptides on DEA schedules?
We checked the DEA Diversion Control Division’s alphabetical list of controlled substances in October 2026. It contains no entry for BPC-157, TB-500, ipamorelin, CJC-1295, melanotan II, semaglutide, tirzepatide, somatropin (HGH) or chorionic gonadotropin (hCG).[2] Nor does it list the non-peptide growth hormone secretagogue MK-677.
So at the federal level, the honest answer is that peptides are not controlled substances. What does regulate them:
- FDA approval rules. A peptide marketed to treat or affect the body is a drug. Without approval it is an unapproved new drug, whatever the label says.
- Prescription-only status. Approved peptide drugs such as semaglutide are prescription-only.
- Compounding limits. FDA’s list of bulk substances that may pose significant safety risks places GHRP-2, GHRP-6, ipamorelin and kisspeptin-10 in Category 2 for some routes.[8] See 503A vs 503B compounding.
Anabolic steroids: Schedule III
Anabolic steroids are the main performance drugs that are controlled. The CSA defines an anabolic steroid as a drug or hormonal substance chemically and pharmacologically related to testosterone (other than estrogens, progestins, corticosteroids and DHEA), and lists dozens by name.[3] On the DEA list, testosterone, nandrolone, methyltestosterone and many designer steroids are Schedule III.[2]
That means possessing them without a valid prescription is a federal crime, and prescribers need a DEA registration to prescribe them. None of this applies to peptides, which are chains of amino acids, not steroids.
HGH: unscheduled, but with its own felony
Human growth hormone sits in an unusual middle ground. It is not on a DEA schedule.[2] But the Food, Drug, and Cosmetic Act has a dedicated section, 21 U.S.C. 333(e), that makes it a crime to knowingly distribute, or possess with intent to distribute, HGH for any use in humans other than treating a disease or recognized condition authorized by HHS and ordered by a physician.[4]
- Penalty: up to 5 years in prison, a fine, or both.[4]
- If a minor is involved: up to 10 years.[4]
- Definition: HGH means somatrem, somatropin or an analogue of either.[4]
Growth hormone secretagogues such as sermorelin, tesamorelin and ipamorelin are different molecules that prompt the body to release its own growth hormone. They are regulated as drugs by FDA. Whether a court would ever treat one as an HGH “analogue” under 333(e) is a question we could not find tested in a published case, so treat that as unverified.
SARMs vs peptides
Selective androgen receptor modulators (SARMs), such as ostarine, are often sold alongside peptides, but they are small synthetic molecules, not peptides. They are not federally scheduled. Senators introduced the SARMs Control Act in November 2019 to add SARMs to Schedule III and treat them like anabolic steroids, after a similar 2018 bill.[5] Neither became law, and we found no enacted federal SARM scheduling as of October 2026. FDA treats SARMs sold as supplements as unapproved drugs.
State laws can be stricter
States run their own controlled substances acts and can schedule substances the DEA does not. The clearest peptide-hormone example is human chorionic gonadotropin (hCG), a glycoprotein hormone:
- New York lists “any material, compound, mixture, or preparation which contains any amount of chorionic gonadotropin” in Schedule III, with an exception for products approved only for cattle or other nonhuman animals.[6]
- California listed hCG in Schedule III until AB 1152, chaptered on October 1, 2025 (Chapter 183, Statutes of 2025), removed it.[7]
We found no state that schedules BPC-157, TB-500 or GLP-1 drugs, and New York’s schedules do not list HGH.[6] We did not review all 50 states, so check your own state’s controlled substances act if this matters to you.
So what’s the legal risk?
For most peptides, the risk is not a DEA drug charge. It is:
- For sellers: FDA warning letters, seizures and prosecution for distributing unapproved or misbranded drugs. See FDA peptide compounding crackdown and online peptide sales legal risks.
- For HGH distribution: a federal felony under 333(e).[4]
- For buyers: the main risk is to health. Products sold as “research only” have no quality checks, and regulators in several countries have linked them to serious harms. Our peptide legality by country table covers rules outside the U.S.
This is general information, not legal advice. If you face a specific legal question, talk to a lawyer licensed in your state.
