What the word tells you
A peptide is a small chain built from tiny linked parts.
Proteins are built from these parts too.
One well-known peptide is insulin.
Why this source matters
This is a description of the substance, rather than a judgement about an offer.
An ingredient name lets you ask about a particular product. A broad phrase such as “peptide therapy” leaves that question open.
Sort the offer before comparing it
The US rules checked September 26, 2026 distinguish approved medicines from medicines made to order and other drugs without approval.
FDA approval does not cover medicines prepared to order either.
The US agency that reviews medicines is the FDA, short for Food and Drug Administration.
But making a medicine to order has its own rules; it is not the same legal group as other drugs without approval.
Why this source matters
Instead of a ready-made approved product, a made-to-order medicine is prepared for an individual patient.
- What is the full ingredient name?
- How will this product be used?
- Which kind of product is it?
Keep the answer on paper. It gives you something concrete to compare with the next offer.