100% Natural castor oil, is extracted from the seeds of castor(ricinus communis) plant. Native of Ethiopia, produced in India, Brazil, West Indies, Africa, Asia, Europe and USA; organic castor oil is a traditional laxative.Pure, refined castor oil (USP grade) is a brilliantly clear liquid and free from suspended matter with specifications like m.i.v.-0.20% max, f.f.a.(as oleic) 0.50% max, acid value 1.00 max, r.i @ 40 deg C-1.470-1.481, relative density @30C 0.954-0.960 gmml, saponification value 177-187, unsaponifiable matter 0.50% max, hydroxyl value 160-168, iodine value 82-90, peroxide value 3.50 max, colour in 5.25 cell Y-10.0 max, R-1.0 max, optical rotation, +3.0 + 6.0, absorption(268-270 nm) max 1.50(1% solution wv in 96% ethanol).Genuine, refined castor oil (USP grade) is broadly used in sectors like pharmaceuticals, lubricants, paints, resins, grease, cosmetics, waxes, textile, leather, polyols, surfactants, printing Inks, water proofing additives, emulsifiers, plasticizers, pigments etc.