Best For Skin Types
All, Dry
Addresses
Usage Frequency
Daily
What Is Castor Oil Benzoate?
Castor oil benzoate is a derivative of castor oil—a natural oil extracted from castor beans—that has been modified through a chemical process. This ingredient functions as both an emollient and skin conditioner, helping to soften and smooth the skin while also serving as a preservative due to its antimicrobial properties.
In skincare formulations, it works to improve texture and maintain product stability, though it is not a primary active ingredient designed to target specific skin concerns.
How It Works
Castor oil benzoate functions primarily as a conditioning agent that sits on and within the outer layers of skin, creating a protective, softening effect. Its antimicrobial properties help prevent the growth of certain bacteria and fungi, which is why it is often included in formulations for its preservative-supporting role.
Clinical Evidence & References
Research on castor oil benzoate as a standalone ingredient in skincare is limited. Most evidence comes from its use within complex formulations designed for specific concerns—such as psoriasis treatment—where it functions as a vehicle or delivery system rather than the primary active agent.
While castor oil itself has a long history of use in traditional medicine and cosmetics, specific clinical studies isolating the effects of castor oil benzoate on human skin are scarce, so claims about direct skin benefits should be approached with appropriate caution.
Published Research
How to Use
This ingredient is typically used within finished products rather than as a standalone ingredient. Follow the usage instructions on the product label, and use as directed for your specific formulation. If layering with other products, apply lighter textures first.
Safety & Precautions
Frequently Asked Questions
From the Clinic
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Caryodendron Orinocense Seed Oil
A lightweight plant oil that conditions skin and hair with a fatty acid profile
Cassia Angustifolia Seed Polysaccharide
Derived from the seed of the Cassia angustifolium plant Serves as an emollient for the skin
Castor Isostearate Succinate
A mix of esters formed by the reaction of castor seed oil, isostearic acid, and succinic acid
Caviar Oil
A lipid-rich oil that conditions skin and hair through natural fatty acids
Centella Asiatica Meristem Cell Culture Extract
A plant cell culture extract that conditions and hydrates the skin
Ceramide 3
Type of ceramide found in skin Reinforces skin’s barrier strength
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