All the products researched, developed and marketed by NeemCo Limited are formulations of the same polar extract of the neem-seed kernel. This extract consists of the most highly-researched of the many complex compounds found in the various parts of the tree. These are the “azadirachtinoids” and include azadirachtin (A) which is the defined active ingredient (a.i.) of commercial neem products on the market. The extract used carries the trade name of Riddance^®. Unlike many other commercial neem extracts, Riddance^® contains a guaranteed high content of the a.i. which makes up 35% by weight of the extract before formulation.