Bad buy, the synopses should have read to the amino acids previously. Mainly contains the amino acids proline and glycine, which are typical of the connective tissue protein collagen. Collagen is found mainly in the skin, bones, tendons, ligaments, cartilage and teeth. Together with the manufacturer's specification "Source: Pig" it's pretty clear what that is. Have just tuned smelled and not even tried, it will now test times as a nitrogen source for the flowers.
