These three words get used as if they mean the same thing. They don’t. Here is the actual relationship between amino acids, peptides, and proteins, and why the size difference matters for how each one works.
Luca de Alpas writes Alpenique's guides to peptide science, skincare, and supplements. Every article is checked against published research and regulatory guidance, with claims limited to what the evidence actually supports. Published under a pen name to keep Alpenique's editorial voice consistent and separate from the author's work in unrelated fields.
