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Castor oil from iHerb
Castor oil is a traditional natural product that has been incorporated into personal and home care routines for centuries. It is used topically to moisturize the skin and hair, and in some cultures, it is applied as therapeutic compresses to help relieve pain.
Plant-derived, castor oil is extracted from the seeds of the Ricinus communis plant and is distinguished by its high content of ricinoleic acid, to which many of its biological properties are attributed.
Where Does Castor Oil Come From?
The castor plant (Ricinus communis) is a semi-tropical shrub cultivated in many regions worldwide (including India, Africa, and South America). The oil is extracted from its seeds. Products on the market vary between cold-pressed (virgin) castor oil and refined or deodorized versions.
Castor oil is rich in ricinoleic acid (approximately 80–90% of its fatty acid content), a compound believed to explain many of its anti-inflammatory and cleansing properties.
Benefits of Castor Oil
1. Skin Moisturizer and Emollient (Emollient & Humectant)
Castor oil has a thick consistency and acts as a barrier that locks moisture into the skin, making it beneficial for dry skin and rough areas (such as heels and elbows). Regular topical use helps soften the skin and reduce cracking. Studies and reviews describe castor oil as a relatively safe topical moisturizer for individuals without sensitivity.
2. Anti-Inflammatory Activity and Topical Therapeutic Properties
Ricinoleic acid in castor oil has demonstrated anti-inflammatory activity in laboratory studies. This property may contribute to relieving pain and swelling when applied topically (for example, massaging castor oil onto the abdomen to ease cramps).
3. Wound Healing Support and Antimicrobial Properties
Laboratory evidence suggests that castor oil and some of its derivatives possess antimicrobial activity (against certain bacteria and fungi) and may accelerate aspects of the wound-healing process. However, castor oil should be considered a supportive topical remedy, not a substitute for proper medical care in deep or contaminated wounds.
4. Moisturizing and Smoothing Hair, Eyebrows, and Eyelashes (Cosmetic Use)
Castor oil is popularly used to smooth hair ends and moisturize the scalp. It is also applied to eyebrows and eyelashes to promote a fuller and softer appearance. User observations indicate improvement in hair appearance and density when mixed with other oils (for example, studies on rosemary–castor oil blends have shown positive results). It is best regarded as supportive for improving scalp condition rather than a medical treatment for pathological hair loss.
How to Use Castor Oil
For dry skin:
Apply castor oil after showering on damp skin to lock in moisture. It is recommended to mix it with a lighter oil (such as almond oil or coconut oil) to reduce thickness and improve spreadability.
For hair:
Use as a pre-wash mask (apply to the ends or scalp for 30–60 minutes), or mix in a 1:2 ratio with a lighter oil for easier removal. Avoid excessive use, as it may weigh hair down or leave residue.
For eyebrows and eyelashes:
Apply a very small drop using a clean brush or cotton swab, avoiding direct contact with the eyes. If itching or irritation occurs, remove immediately and wash the area.
Castor Oil from iHerb
NOW Foods, Solutions, Castor Oil, 4 fl oz (118 ml)

Cold-pressed castor oil extracted from Ricinus communis seeds, packaged in a 118 ml (4 fl oz) bottle. It has a thick consistency and is virtually odorless, making it suitable for cosmetic and skincare use. Commonly used for moisturizing skin, conditioning eyebrows and eyelashes, and blending with other oils for hair care.
To view full product details, visit the following link:
Castor Oil from iHerb
Why Buy Castor Oil from iHerb?
Castor oil is a versatile natural product: a powerful skin moisturizer and a useful ingredient in hair care routines. The NOW Foods Castor Oil (118 ml) available on iHerb offers a practical size with positive user ratings, making it a convenient and reliable option for those looking to purchase castor oil online.