Peptides may seem like a modern wellness trend, but in reality, they’ve been part of scientific discovery and medical advancement for over a century. While their popularity in performance, recovery, and longevity spaces has surged in recent years, peptides themselves are far from new.
The Early Discovery of Peptides
At the time, scientists were just beginning to understand how amino acids functioned in the body. Fischer’s discoveries opened the door to studying small chains of amino acids—what we now call peptides.
Mid-20th Century: Peptides in Medicine
By the 1950s and 1960s, researchers had begun isolating and synthesizing specific peptides that occur naturally in the human body. One of the most important milestones was the sequencing of insulin, a peptide hormone critical for blood sugar regulation.
In 1955, British biochemist Frederick Sanger successfully determined the amino acid sequence of insulin, a breakthrough that changed medicine forever and earned him a Nobel Prize.
From that point on, peptides became increasingly important in pharmaceutical research. Scientists discovered numerous peptide hormones involved in growth, metabolism, digestion, immune function, and cellular communication.







