Start with the product
A cream and a shot need different questions.
Begin with the exact name and how the product would be used. “Peptide skin care” leaves too much unsaid.
Write here, or print a page to keep.
Put the offer into words
Keep the name from the label or written offer. Leave a gap where an answer is missing.
What does “peptide” mean?
For a peptide on a skin-care label, picture a short strand of linked small parts, like beads along a thread.
Those small parts also make up proteins.
In a skin-care offer, “peptide” names the kind of ingredient. Ask which skin change this particular product is meant to bring about.
The word “peptide” gives no assurance of safety or permission to sell a product, as of September 2026.
- Keep your questions focused on the particular product instead of peptides as a group.
- For an injection offer, ask for evidence about the injected form.
What makes a skin product a drug?
Oversight of U.S. medicines belongs to the Food and Drug Administration; this notebook uses its initials, FDA.
As of September 2026, the FDA explains that most cosmetic ingredients need no approval before sale; color additives are an exception.
U.S. rules classify a product as a drug if its purpose is disease treatment or a change in body function, as of September 2026.
- Ask: Is the claim only about appearance?
- Ask: Is the claim about treating a condition or changing the body?
What does “compounded” mean?
To compound a medicine, a pharmacist or doctor makes it for a particular need.
Compounded medicines lack approval from the FDA, which has not checked their quality, safety or benefit before sale, as of September 2026.
- Ask for the reason behind the offer of a medicine made to order.
- Ask which exact product and use the evidence covers.
If the offer names GHK-Cu
GHK-Cu is the name of a peptide ingredient. If it appears in your skin-care offer, ask what change in your skin is being promised.
This notebook has no verified estimate of how much GHK-Cu might improve skin. Ask for studies of the exact product and how it would be used.
- The FDA’s ingredient list puts GHK-Cu used without injection in Category 1, a group awaiting a compounding decision, as of September 2026.
- For that group, the FDA plans to hold off on legal action against pharmacies using the ingredient, under its September 2026 policy.
- This policy applies only when the pharmacy meets the conditions in the FDA’s compounding guidance, as of September 2026.
- For an ordinary compounding pharmacy, the rules include a prescription naming the patient, as of September 2026.
- The ingredient also needs a certificate showing its quality and a maker recorded with the FDA, under those September 2026 rules.
- Category 1 does not establish that a product is legal, FDA-approved or safe, as of September 2026.
- The FDA’s separate record for injected GHK-Cu shows a request to allow it in compounding was taken back, as of September 2026.
- The people or groups who submitted the request took it back; the FDA still shows its safety concerns, as of September 2026.
- Taking that request back gives no permission to compound the shot and no FDA approval, under the September 2026 rules.
For injected peptides in general, the FDA raises concerns about body reactions and unwanted substances, in records checked in September 2026.
- For a cream: ask the pharmacist to show you the FDA’s compounding conditions and explain how this product meets them.
- For a shot: ask the prescriber and pharmacist to explain the legal basis for this exact offer before agreeing.
- Ask what the safety concerns mean for you and what other options address your skin concern.