Collagen Hx contain clinically studied Peptan® Type I Collagen Peptides along with Boswellia extract and naturally sourced silica. Peptan® is a high-purity, natural bioactive product, containing more than 97% protein.  Peptan® contains 18 amino acids, the building blocks of our tissues and the primary component of proteins. Glycine, proline and hydroxyproline represent around 50% of Peptans® total amino acid content; the glycine and proline concentration in Peptan® is 10 to 20 times higher than in other proteins. As a result, Peptan® offers health benefits that cannot be found in other protein sources.