A research label does not make treatment approved
The US drug agency is called FDA, short for Food and Drug Administration.
FDA sent warning letters about peptide products sold for treatment but labelled for research. FDA said they were unapproved drugs. Letters checked September 26, 2026.
A warning letter tells a business what FDA believes it has done wrong. It is an accusation, not a court decision.
A promising name can still lack approval
BPC-157, ipamorelin and retatrutide had no approved US medicines in the FDA records checked September 26, 2026.
Ask whether the exact medicine being offered has FDA approval. Ask about that medicine by name.
Some ingredients cannot be used in custom medicines
FDA says federal law does not allow medicine made to order with retatrutide or cagrilintide. FDA guidance checked September 26, 2026.
Ask the health professional: “Is this medicine approved? If it is made to order, why is that allowed by law?” Ask for that explanation before asking how to get it.
Keep the question about real care
- Is this medicine approved for use in people?
- Who will check my health and discuss treatment?
- Which pharmacy would fill the medicine order?
Read the source for this question
- FDA: weight-loss product concerns
Read the research-label and retatrutide sections for the agency’s stated position.
- FDA: what a drug code cannot prove
Read why appearing on a drug list does not prove FDA approval.