Nelsonia canescens leaves were used in the processing of palm oils to improve the quality and stability of__ampersandsignnbsp;the oils. Palm oils were obtained from the ripe fruits of Elaeis guineensis var nigrescens and Elaeis guineensis var virescens. Phytochemical analysis of Nelsonia canescens leaves and the oils were__ampersandsignnbsp; arried out. The qualities of the oils were assessed in terms of free fatty acid content, saponification, acid, and iodine values. Results showed the presence of flavonoids, saponins, __ampersandsignbeta;-carotenes, tocopherols, alkaloids, tannins and glycosides in the leaves. Oils from both oil palm varieties contained little amounts of arotenoids and flavonoids. The use of Nelsonia canescens leaves removed the saponins present in var virescens oil, lowered the levels of iodine, acid and free fatty acid values, but enhanced the saponification values in both oil varieties. In lowering iodine value unsaturation property of the oil was reduced. Consequently rancidity tendencies of the oils were reduced. Evidently, the use of Nelsonia canescens leaves will enhance the stability and shelf life of palm oils.