WOW! this stinks, but for good reason. Pegasus Potion is a nitrate free, totally available protein source of nitrogen. Nitrogen proteins are extracted from feathers and digested into their simplest, most available forms. Pegasus works great as a foliar treatment with fast results and can be used as an additive to the rest of the line. If you feel you need more nitrogen and don't want the burn or the stretch then Pegasus will show you how it's done.