While it is hard to pick a favorite peptide – there are that many to choose from – one that’s especially close to my heart (and knees) is Body Protection Compound 157, better known as BPC 157—or simply BPC. I use it regularly, both in my practice and in my own life. Peptides like BPC 157, are short chains of amino acids — essentially mini-proteins — that signal specific biological actions. Studies show that certain peptides can support tissue repair, immune regulation, metabolism, and even brain health. Unlike general supplements or standard issue pharmaceuticals, peptides tend to behave more like precisely targeted messengers, mimicking natural hormones or enzymes in the body.