Whey protein is derived from milk during the cheese-making process and is a complete protein containing all nine essential amino acids, making it ideal for muscle growth and recovery.
Collagen protein is typically sourced from the connective tissues, skin and hides of animals such as grass-fed cattle or marine fish. It is rich in collagen peptides and amino acids like glycine and proline, which help support healthy skin, joints, tendons and ligaments.
While both are excellent sources of protein, they are designed for different purposes and can be used together as part of a balanced nutrition plan.