What is the process like to convert shrimp shells into peptides?

PreCardix® contains a unique refined shrimp peptide concentrate (Marealis RSPC). This unique peptide concentrate is derived from the proteins of fresh, cold water Arctic prawns (Pandalus Borealis) through a controlled enzymatic hydrolysis process. Enzymatic hydrolysis breaks down larger protein chains into smaller, peptide chains. These peptide chains are further refined into Marealis RSPC through a proprietary process resulting in a clinically proven bioactive marine peptide with an ACE inhibiting action.