NOW Foods Castor Oil 4 fl oz is a 100% pure, hexane-free cold-pressed oil from Ricinus communis seeds — beloved for its exceptional moisturizing, hair-conditioning, and skin-nourishing properties. Composed of approximately 90% ricinoleic acid, castor oil is uniquely thick and humectant, drawing moisture to skin and creating a protective barrier that locks hydration in. It is particularly popular for eyebrow and eyelash conditioning, scalp treatments, and as a hair mask ingredient for dry, brittle hair. When applied to the scalp it moisturizes and conditions the follicle environment. NOW Foods cold-presses without hexane solvents for maximum purity. This 4 fl oz size is ideal for regular beauty and personal care use.