Castor oil (CO) is thought to have anti-inflammatory, antimicrobial, moisturizing, and other useful properties. It is an oil made from “castor beans,” the seeds of the Ricinus communis plant, also known as palma chirsti. CO can be applied directly to the skin or taken orally in small amounts. Some also use CO “packs.” Packs — see the related post Castor Oil Packs — are made of cloth that is soaked in CO and applied to affected areas. Because of its potency, CO is not used in cooking or added to food.
What is castor oil?
CO is a carrier oil that differs from other oils due to its molecular weight. The effectiveness of CO may be due in part to its unusual chemical composition — it is a triglyceride of fatty acids. The fatty acids include ricinoleic acid, which is the most abundant (80-90%). Other fatty acids include oleic acid (5-10%), linoleic acid (4%), stearic acid (3%), and linolenic acid. Ricinoleic acid allows the oil to penetrate into the dermis, the location of circulatory and lymphatic vessels. Research has shown ricinoleic acid to be effective in preventing the growth of numerous species of viruses, bacteria, yeasts, and molds. Due to the many beneficial aspects of this fatty acid component, CO can be applied topically to treat a wide variety of health complaints.
A good brand of CO is packaged in amber-colored glass. Look for CO which is organic, hexane free, cold pressed and extra virgin. Avoid purchasing CO which is packaged in plastic, as the oil will actually pull the plastic into its structure. Much of the CO sold on the market today is from seeds which have been sprayed with pesticides.
CO is used as a powerful laxative, a natural moisturizer, and in wound healing. It has been used to assist in healing the body throughout the world and was used therapeutically in ancient India, China, Persia, Egypt, Africa, Greece, Rome, the Americas and in 17th century Europe. It is known to be effective for many diverse types of pain, sore muscles or sprains and structural pain of the joints, edema and swelling from injuries, emotional support and stress reduction, liver and gallbladder stimulation and cleansing/detox, digestive problems, skin disorders such as eczema or psoriasis, menopause symptoms, to boost the immune system, and lymphatic circulation.
Possible benefits of castor oil packs
CO lowers inflammation. The anti-inflammatory properties of CO can help alleviate swelling and reduce inflammation in various parts of the body.
CO supports liver detoxification and improves bile flow. CO packs can aid in liver detoxification by stimulating the production and flow of bile, enhancing the elimination of toxins from the body.
CO activates the parasympathetic nervous system. The application of CO packs can help activate the parasympathetic nervous system, promoting relaxation, reducing stress, and supporting overall well-being.
CO reduces pain, bloating, and cramps. CO packs have been used traditionally to alleviate pain, bloating, and cramps associated with various conditions, such as menstrual cramps and digestive disorders.
CO improves circulation and blood flow. By promoting circulation and blood flow to specific areas, CO packs can support tissue healing, reduce congestion, and enhance overall vitality.
CO stimulates the lymphatic system. The lymphatic system plays a crucial role in removing waste and toxins from the body. CO packs can help stimulate lymphatic circulation, aiding in detoxification and supporting immune function.
By using castor oil packs, the flow of lymph is increased throughout the body. This helps to speed the removal of toxins surrounding the cells and to reduce swelling of the lymph nodes, support for lymphatic system flow, and for the lymph organs (such as the spleen and thymus).
CO packs gained popularity due to Edgar Cayce, also known as the “sleeping prophet.” He introduced these packs as treatment for many conditions, including breast cysts, congestion in the abdominal organs, skin conditions, and scar tissue.
Research
Final report on the safety assessment of Ricinus communis (castor) seed oil, hydrogenated castor oil, glyceryl ricinoleate, glyceryl ricinoleate SE, ricinoleic acid, potassium ricinoleate, sodium ricinoleate, zinc ricinoleate, cetyl ricinoleate, ethyl ricinoleate, glycol ricinoleate, isopropyl ricinoleate, methyl ricinoleate, and octyldodecyl ricinoleate. (2007). International Journal of Toxicology.
Alookaran, J., & Tripp, J. (2024). Castor Oil. StatPearls Publishing.
Goyal, A., Sharma, A., Kaur, J., Kumari, S., et al. (2022). Bioactive-based cosmeceuticals: An update on emerging trends. Molecules.
Parvizi, M., Saki, N., Samimi, S., Radanfer, R., et al. (2024). Efficacy of castor oil cream in treating infraorbital hyperpigmentation: An exploratory single-arm clinical trial. Journal of Cosmetic Dermatology.
Additional Information
4 benefits and uses of castor oil | Healthline
30 outstanding castor oil uses and benefits | One Agora Integrative Health
87 ways to use castor oil | Alive and Well
Castor oil: Are there health benefits? | Web MD
Castor oil: Myths and facts | New York-Presbyterian
The health benefits of castor oil | Web MD
Therapies: Castor oil packs | Edgar Cayce
What the evidence says about castor oil in patients with cancer | Oncology Nursing Society
What to know about castor oil for eczema | Medical News Today