Keep the claim beside its proof.

For a skin product’s status

The Food and Drug Administration (FDA) is the U.S. medicine regulator.

The FDA’s guidance separates claims about appearance from claims about disease or how the body works, in rules checked in September 2026.

• Question to bring: Which kind of claim is being made here?
• Read the product’s own wording beside the source.

For an offer naming GHK-Cu

GHK-Cu is the name of a peptide ingredient. Ask what skin change is promised and whether the evidence concerns a cream, a shot or another form.

The FDA’s ingredient list treats injected GHK-Cu separately from GHK-Cu used without injection, as of September 2026.

The record for injected GHK-Cu shows that the people or groups seeking permission to use it in compounding withdrew their request, as of September 2026.

Taking the request back gives no permission to compound it; the FDA still shows its safety concerns, as of September 2026.

For injected peptides in general, the FDA raises concerns about body reactions and unwanted substances, in records checked in September 2026.

• Question to bring: Does this source describe the form on the offer?
• Write whether it goes on the skin or is injected beside the ingredient name.
• For a shot, ask the prescriber and pharmacist to explain the legal basis for the offer and the safety concerns.

For a made-to-order medicine

Preparing a medicine for a particular need is called compounding; a pharmacy or doctor does this work.

Approval has not been granted for compounded medicines, according to the FDA’s compounding explanation checked in September 2026.

• Question to bring: Why is a compounded product being proposed?
• Ask for the reason that applies to the care being discussed.

For the person’s licence

State medical boards license doctors and publish whether a licence is current, explains the Federation of State Medical Boards.

Their public records also show formal accusations of broken rules and penalties imposed by the board.

Those records do not rate a doctor’s skill.

• Question to bring: Have I checked the person who will actually assess me?
• Use the full name and the relevant state board.

For a government product code

The FDA’s drug directory is a database of products; a product number in it is called a National Drug Code (NDC).

If someone shows you “NDC” beside a number on a label or offer, ask what record that number leads to.

As of September 2026, the FDA explains that an NDC does not mean it approved the product.

• Ask: Can you show me the FDA record saying it approved this exact medicine for this use?
• Ask them to point to the product name and approved use in that record, rather than just a product number.