Kelp Powder is derived from dried brown seaweed. Kelp comes from the coast of Norway where it grows in large quantities. It is high in Vitamin E and has a very distinctive taste and smell that Carp seem to like. This appetite stimulating concentrate is quite popular in Western Europe but more and more people have begun to recognise its powerful attraction to Carp. Some anglers will simply not make boilies without adding Kelp Powder. It is a highly concentrated additive, therefore it is important to observe the recommendations regarding levels of use.