Evidence explainer

Approved vs compounded vs research-use-only

A guide to the regulatory labels that show up in peptide marketing and why those labels do not mean the same thing.

Checklist

FDA approval means the agency reviewed the product for safety, effectiveness, and quality for labeled uses.

FDA explains that compounded drugs are not FDA-approved and are not verified by FDA for safety, effectiveness, or quality before marketing.

A research-use label does not verify a consumer health claim, therapeutic legality, safety, or product quality.

When a paper reports a dose or schedule, read it as a study detail tied to that population, route, and product.

1.
FDA. Compounding and the FDA: Questions and Answers 2026.
Accessed 2026-06-08.
FDA explains that compounded drugs are not FDA-approved and that FDA does not verify their safety, effectiveness, or quality before marketing.
2.
FDA. FDA alerts health care providers, compounders and patients of dosing errors associated with compounded injectable semaglutide products 2024.
Accessed 2026-06-08.
FDA distinguishes approved semaglutide products from compounded semaglutide products and describes dosing-error concerns.