Peptides are simply short strings of amino acids typically comprising of 2–50 amino acids.
Amino acids are the building blocks of proteins. Peptides are easier for the body to absorb than proteins because they are smaller and can be broken down more than proteins. Different amino acid sequences make up the different peptides and give that specific peptide the ability to derive different benefits. Peptides have been used in mainstream medicine, supplementation, wellness and anti-ageing for over 50 years.
One of the most common peptides in mainstream medicine is Insulin used for type 1 diabetes. Because peptides can be replicated very easily many of them never make mainstream medicine or become a registered product on the pharmacy shelf.