Today, many people use Haitian Black Castor Oil to moisturize and grow hair, thicken and grow eyelashes and eyebrows, and soften and heal corns, stretch marks, and scars. Castor oil has 80-90% ricinoleic acid, which is responsible for its anti-inflammatory, anti-bacterial and anti-fungal properties. This promotes a healthy scalp which supports hair growth. Castor oil is also a humectant, so it draws water to itself, keeping hair and skin hydrated in the process.