What are the functions and effects of castor oil?

Nov 28, 2024 Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Under normal circumstances, castor oil is a vegetable oil extracted from castor beans. It has multiple functions including lubricating the intestines and relieving constipation, astringent and analgesic effects, moisturizing the skin and hair, treating skin diseases, and alleviating joint pain. Castor oil has certain toxicity, and excessive use may lead to side effects such as drug dependence or changes in stool color. Therefore, the use of castor oil should follow medical advice.

Under normal circumstances, castor oil is a plant oil extracted from castor seeds and has multiple functions including lubricating the intestines to relieve constipation, astringent analgesia, moisturizing skin and hair care, treating skin diseases, and alleviating joint pain. Specific details are as follows:

1. Lubricating the Intestines and Relieving Constipation

Castor oil is rich in natural oils, which, upon entering the human intestine, are rapidly broken down by intestinal lipase into sodium ricinoleate and glycerol. These substances strongly stimulate the small intestine, accelerate intestinal peristalsis, shorten the time required for fecal excretion, and thus exert a laxative effect. Appropriate consumption of castor oil can help prevent or relieve constipation, especially suitable for individuals suffering from constipation. Additionally, castor oil can also be used as a bowel cleansing agent prior to colonoscopy.

2. Astringent and Pain Relief

Castor oil has astringent and analgesic properties and can be used to treat pain caused by burns and scalds. Applying an appropriate amount of castor oil to the affected area can promote wound healing and alleviate pain. Moreover, for patients with skin ulcers or oral ulcers, application of castor oil can also accelerate the healing of ulcerated areas.

3. Moisturizing Skin and Hair Care

Castor oil can be directly applied to the skin surface to moisturize the skin and help improve dryness and roughness. It can also nourish and soften the skin, maintaining its smoothness, fineness, and luster, thus preventing skin disorders. At the same time, castor oil helps improve the scalp environment, making hair smoother and contributing to darker hair color.

4. Treating Skin Diseases

Castor oil can also be used to treat certain skin diseases, such as scabies, ringworm, and sores. Applying castor oil to the affected area may provide some relief. However, patients with broken skin, eczema, or dermatitis should avoid using castor oil to prevent worsening of the condition.

5. Alleviating Joint Pain

Due to its anti-inflammatory properties, castor oil can effectively reduce joint pain caused by arthritis or rheumatism. Applied locally via heat compress or massage, castor oil can deeply penetrate the skin, reducing inflammation and relieving pain.

Castor oil is somewhat toxic; excessive use may lead to drug dependence or cause side effects such as changes in stool color. Therefore, when using castor oil, one should follow the recommended dosage provided by a healthcare professional or as indicated in the product instructions.

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