PeptoPro contains only short chain peptides (average length is less than 4 amino acids) which are water soluble. By being water soluble it not only makes the protein more digestible, but most importantly, makes it very user friendly. The small peptides from PeptoPro are directly and quickly taken up by the gut and released into the blood without digestion.
Studies from Boza have shown that the nitrogen retention is highest for milk peptides, higher than that from free amino acids or intact protein. That means that the amino acids from milk derived peptides (like PeptoPro) are better and more rapidly absorbed having a higher bioavailability for protein synthesis than amino acids from normal protein and free amino acids.