Ekos Castanha Nourishing Foot Cream. Features: A pampering foot cream enriched with a blend of nourishing castanha oil and cupua butter from Brazil. Rich texture sinks into skin to smooth and sooth rough, dry, and even cracked skin.. Benefits: Nourishes the skin deeply, without leaving residual oiliness.. Remains dry to the touch and rapidly absorbed, while leaving the skin soft and the nails lustrous.. Key Ingredients: Known and revered as the Queen of the Forest, theCastanha(or Brazil nut) is found deep in the forests of the Amazon. Endlessly rich in benefits, both medicinal and beautifying, the castanha produces an oil that deeply nourishes and feeds skin for intense moisturization..