Ricinoleic Acid
Ricinoleic acid is a fatty acid derived from castor oil that exhibits anti-inflammatory, analgesic, and antimicrobial properties. It is primarily used in topical formulations for skin conditions such as acne, fungal infections, and inflammation, as well as in ophthalmic solutions to support eye health. The compound may also be used as an emollient and penetration enhancer in various dermatological and cosmetic preparations.
A castor oil-derived fatty acid used topically for skin conditions and inflammation, with emollient and antimicrobial properties.
Key facts at a glance
- RxNorm
- 35605
- Generic
- Ricinoleic Acid
- Class
- pin-variant
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Ricinoleic acid is used for various dermatological conditions including acne, eczema, and skin inflammation. It also serves as an emollient in moisturizing formulations, supports eye health when used in ophthalmic preparations, and may be utilized for minor wound care due to its antimicrobial properties.
As a fatty acid component of castor oil, ricinoleic acid exerts its effects through multiple mechanisms including modulation of prostaglandin synthesis for anti-inflammatory action, disruption of microbial cell membranes for antimicrobial activity, and enhancement of skin penetration for topical formulations. Its emollient properties help maintain skin hydration and barrier function.
Ricinoleic acid should be used externally or as directed for specific indications; oral castor oil containing this compound is traditionally used as a laxative but should not be used long-term. Topical use may cause skin irritation in sensitive individuals. Pregnant individuals should consult a healthcare provider before use, particularly for any internal applications. Always follow product-specific instructions and consult a healthcare professional for appropriate therapeutic use.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy