Peptides have been around for nearly 100 years, but have seen a renaissance over the past two decades with potential treatment targets against cancer, anti-aging, infertility, and even obesity, to name a few. Peptides, as a class of treatment, have a huge span of biological activity from hormones to antimicrobials to potential targets in every organ system.
Peptides are essentially short proteins, defined as being less than 50 amino acids in length. They can be natural or synthetic. Their small size, low molecular weight, and simple amino acid structure let them move through barriers in the body that would normally exclude larger and more complex molecules.
