What is the difference between collagen peptides and collagen protein?

Collagen protein is the full, large molecule found naturally in animal tissues like skin and bones, but it is hard for the body to absorb when taken as a supplement. Collagen peptides are collagen protein that has been broken down through a process called hydrolysis into much smaller pieces, making them easier to digest and absorb. In practice, there is often no meaningful difference as most collagen supplements sold are in peptide form, also known as hydrolysed collagen.

Key points:

Collagen protein consists of large molecules that the body struggles to break down and use effectively.
Collagen peptides result from hydrolysing collagen protein into small chains for better absorption, often around 90% compared to 10-15% for whole collagen.
The terms collagen peptides and hydrolysed collagen describe the same highly bioavailable product used in supplements.
Both provide the same amino acids to support skin, joints, and connective tissues once absorbed.

This text has been fact-checked for accuracy by Sorin Romaniuc, Pharmacist at medino.