What is Krappa Oil? The krappa (Carapa guianensis; also called andiroba or crabwood, among others) is a species of tree in the Meliaceae family (Mahogany family). The tree is found in the Amazon, Central America and the Caribbean. It is a tall tree with dense foliage. The wood looks like mahogany wood and is used in quality furniture. The vegetable oil that has medicinal properties is extracted from the seeds. The oil is also used as a repellent against insects and for strengthening and nourishing the hair. The oil is not only anti-inflammatory (ideal against insect bites, acne, irritations...), but also has a soothing, nourishing and invigorating effect.