Our Vegetable Collagen is derived from non-GMO corn, wheat, and soy, which are sustainably grown, harvested and processed at different times, throughout the United States. Vegetable Collagen is obtained through an enzymatic hydrolysis (breaking down with water) of the protein from soy, corn and wheat, resulting in 20 amino acids, the primary being hydroxyproline, glycine, proline and arginine, then filtered and concentrated utilizing low temperature evaporation and spray dried to maintain all their beneficial compounds. Sustainably grown and processed.