Providence / read the evidence
A plain-language care & cost guide
Check the product behind the word peptide.
Get its exact name and match the claim to a source. Ask whether the evidence fits the product and the reason for care.
Read the claim in this order
- Exact product
- Approval and intended use
- Studies in people
- Questions for your doctor
Approval belongs to a specific product
Ask for the product and its label
Ask which use the product was approved for. Then ask how that relates to your reason for care.
Calling a product a peptide does not mean the FDA has approved it, under US rules checked September 2026.
The US drug agency is the Food and Drug Administration, known as FDA.
Semaglutide (Wegovy) is an FDA-approved peptide medicine, as of September 2026.
FDA: the approved Wegovy labelMade to order does not mean approved
Ask why it is made to order
For a medicine prepared to order, ask why it is under consideration and what change would be made for you.
Compounding is making a medicine to meet a patient’s particular needs.
US law allows compounding under set conditions, as of September 2026.
For compounded medicines, FDA says it does not check quality, benefit or potential harm before sale, as of September 2026.
When an approved product cannot meet a patient’s medical need, compounding can meet that need.
Examples include a dye allergy in a ready-made medicine or a patient being unable to swallow its tablet.
FDA: made-to-order medicinesFDA: shortage and copy rulesA drug product number does not prove approval
Ask which proof is being offered
If an offer shows a seal, logo or product number as proof of approval, ask for the record behind it. Ask what that record proves about this exact medicine.
In a government list of drug products, the product number is called a National Drug Code, or NDC.
Being on that list does not mean FDA approved the product, as checked September 2026.
FDA: what a product code meansRetatrutide and cagrilintide are drug ingredients discussed in the FDA’s warning about weight-loss products.
As of September 2026, FDA says neither ingredient is in an approved medicine or has been shown safe and effective for any condition.
As of September 2026, FDA also says federal law bars either ingredient from use in medicines prepared to order.
FDA: the position on these productsMake the evidence answer your question
Check who was studied
Was the study in people? Did those people have the concern being discussed?
Check what was tested
Did it test this exact product and form? Ask your treating doctor or other health professional to explain the result in plain words.
Check what remains unclear
What did the study fail to answer? What could make the findings a poor fit for my care?