Castor oil is a thick vegetable oil, known since ancient times for its many properties. Rich in ricinoleic acid, vitamin E and essential fatty acids, it helps protect, nourish, and strengthen both skin and hair. It is traditionally used to promote growth and strengthen eyelashes, eyebrows, hair, beard, and nails. Ideal for dry, brittle, or damaged hair, it adds shine and softness. In skincare, it is valued for its film-forming and protective properties. It helps reduce moisture loss and supports the skin barrier. Its thick texture and glossy finish make it a key ingredient in lip balms, glosses, and makeup products. It is also easily incorporated into many other cosmetic formulations such as hair care, creams, and makeup removers. Highly concentrated with a rich texture, it is best used diluted with lighter oils for more comfortable application.