Allergy Research Bioactive Collagen X 500gHydrolysed (predigested) powdered bioactive, very well absorbed collagen from a bovine source. Supports connective tissue & maintains joint health. Bioactive Collagen is a composition of different highly purified collagen peptides derived from a specific type of hydrolysis from bovine skin. Collagen peptides are rapidly absorbed from the gastro intestinal tract. Peptides are broken down into amino acids or di peptides but are also absorbed to some