The invention describes compositions and methods for the management of hyperproliferative skin conditions such as psoriasis. The preferential composition contains a natural leukotriene inhibitor selected from Boswellia serrata gum resin, its extractives, isolates or derivatives in combination with a bioavailable organic selenium nutritional supplement. These compositions are administered orally and topically to the individual human or animal in need of treatment at optimal levels to manifest the desired benefits, with no untoward side effects