We have differ contents of amino acids,40%, 45%, 60%, 65%,70% 80%Organic Fertilizer Our compound amino acid powder contain organic nitrogen and in-organic nitrogen, which not only can be used as raw materials for foliar fertilizer but also can be apply on the crops as water flush fertilizer, ground fertilizer and basic fertilizer. There are two source, one is from animal fur, the other is from soybean. Quality Specification: AppearanceLight yellow powder Solubility100% Water Soluble MoistureLess than 5% Amino acidsMore than 45% Total nitrogenmore than 16.5% PH: 8-9 Organic Fertilizer