What is actually being offered?
The product name changes the answer.
“Peptides” is too broad to compare. Ask for the ingredient that does the work, the product name, and whether it comes as an injection, a tablet, or another form.
Approved medicines have a specific use
The US agency that reviews medicines for specific uses is FDA, short for Food and Drug Administration.
In September 2026, semaglutide (Wegovy) has approved weight-management products, used alongside changes in food intake and activity.
Tirzepatide (Zepbound) also has an FDA-approved weight-management product as of September 2026.
Ask which approved use matches your health needs. Ask what outcome the evidence measured, especially if your goal is more muscle.
Read beyond the product label
A compounded preparation is made to order
Compounding means a doctor or pharmacist prepares medicine to meet a patient’s particular need.
As of September 2026, these preparations lack FDA approval, and FDA does not assess their safety, quality, or benefits before they are marketed.
FDA guidance describes compounding as an option if the approved product is unavailable or cannot serve a patient’s particular need.
Understand the conditions around compoundingA research label is not a medicine approval
Labels such as “for research purposes” or “not for human consumption” appear on some products offered for people to take.
In guidance checked in September 2026, FDA warns that these weight-loss products have unknown quality and may be harmful.
Retatrutide and cagrilintide are drug-ingredient names. As of September 2026, FDA says neither is part of an FDA-approved medicine, and federal law does not allow doctors or pharmacists to use either in made-to-order medicines.
An online product page is a place to ask questions about status. It is not a reason to treat a research product as care.
A code or badge does not settle approval
A National Drug Code is the number the government drug directory uses to identify each listed drug product. It tells you which product is listed, not whether it has approval.
As of September 2026, FDA says having a National Drug Code does not establish that a product is approved.
Ask for the actual approval record and the actual label. The further-reading page has government records to start with.
Find product records