Organic-B vitamin supplement is made up of three unique yeast extract hydrolysates that together give a balanced feeding of B-1 (thiamine hydrochloride), B-2 (riboflavin), B-3 (Niacin), B-5 (Pantothenic Acid), B-6 (Pyridoxin), B-7 (biotin), and B-12 (Cobalamin).  Yeast extracts also contain proteins, peptides, free amino acids, lipids, vitamins, minerals, trace elements, and cytokinins. Organic-B is completely organic and can be used in hydroponic and soil mediums.  They are also a great source of food for beneficial microbial growth products likes voodoo Juice, Piranha, and Tarantula.  100% ORGANIC