Castor Oil USP
The castor oil is native from Central Africa, it can be found as an ornamental plant, in all regions of tropical and subtropical zone. Also cultivated for the production of industrial oils in several countries of the world, especially in India and Brazil. It was used as a long-term medicinal plant during the past.
Castor Oil is the fixed oil obtained from the seed of Ricinus communis Linné (Fam. Euphorbiaceae).
Castor Oil as an Industrial Ingredient: The castor oil is today used in plastics, textiles, paints, cosmetics, and a number of inks and industrial adhesives. Castor Oil is finding increasing uses in the industrial world. It figures largely in the manufacture of the artificial leather used in upholstery; it furnishes a coloring for butter, and from it is produced the so-called 'Turkey-red' oil used in the dyeing of cotton textures. It is an essential component in some artificial rubbers, in various descriptions of celluloid, and in the making of certain waterproof preparations, and one of the largest uses is in the manufacture of transparent soaps. It also furnishes sebacic acid which is employed in the manufacture of candles, and caprylic acid, which enters into the composition of varnishes.
Castor Oil for Cosmetics, and Medical Use: The castor oil, when used in cosmetics, acts as a humectant; it attracts and retains moisture to the skin. Castor oil is often used in lipsticks. It is also a thickener and an emollient. Castor Oil is regarded as one of the most valuable laxatives in medicine. Externally, the oil has been recommended for various cutaneous complaints. Castor Oil is an excellent solvent of pure alkaloids and such solutions of Atropine, Cocaine, etc., as are used in ophthalmic surgery. It is also dropped into the eye to remove the after-irritation caused by the removal of foreign bodies.
Castor Oil for Soap Manufacturing: Castor Oil forms a clean, light-colored soap, which dries and hardens well and is free from smell.