Before you jump in, however, it's crucial to understand the difference between collagen and collagen peptides -- because, yes, there is a difference. Here's everything you need to know.

Collagen is the primary building block of your body's skin, muscles, bones and more. But it's hard to keep the levels in check because as you age, your body's collagen levels naturally decline.

Department of Chemistry, Brandeis University, 415 South St., Waltham, Massachusetts 02454, United States ...