Warm, sweet caramel scent The tropical Tonka tree bears fruit with highly aromatic black seeds, the tonka bean. The rich essential oil derived from the seeds has a with high coumarin content and a warm, caramel scent. Tonka is also traditionally used for insect repellent in South America. Application: For aromatherapy and personal scents. Origin: Venezuela Part of the plant used: seeds Type of extraction: alcohol Botanical name: Dipteryx odorata Ingredients: Dipteryx odorata