Black Jamaican castor oil is nutrient-rich oil from castor beans. Castor oil is a valuable medicinal ingredient in Asia, used widely in Ayurveda. In Jamaica the oil is produced by roasting the seeds that imparts the dark color with a smoky smell. Castor oil contains long-chained fatty acid that provide essential proteins and nutrients to hair follicles. It's anti-inflammatory properties provide rooting strength to hair follicles.