Our castor oil is made only from the oil of raw castor seed. It doesn't contain any other ingredients, which is why it's naturally thick. There are no preservatives, artificial additives, or parabens - and it is unrefined, hexane-free, and cold-pressed without heat or chemicals. This means that it has high concentrations of ricinoleic acid, omega-6 and omega-9 fatty acids, vitamin E, and minerals that give it its organic castor oil for hair growth is a natural eyebrow and eyelash serum. To use as lash growth serum, use the included applicators to apply the oil to your lashes. For both your eyelashes and your eyebrows, apply this oil before going to bed and rinse it off in the morning. Castor strengthens brittle nails and conditions dry cuticles to restore their natural beauty.