Ceratonia Siliqua Seed Extract
INCI: CERATONIA SILIQUA SEED EXTRACT
Reviewed by Emma · Last updated 14 Aug 2026
Plant extract with antioxidant and photoprotective properties from carob seeds
Best For Skin Types
All, Sensitive, Mature
Addresses
Usage Frequency
Daily
What Is Ceratonia Siliqua Seed Extract?
Ceratonia siliqua seed extract comes from the seeds of the carob tree, a Mediterranean plant traditionally used for food and agriculture. The extract is rich in polyphenols and other plant compounds that have been studied for their potential benefits in skincare formulations.
In skincare products, this ingredient functions as a skin conditioner, working to support the skin's natural protective mechanisms and maintain skin texture through its bioactive compounds.
How It Works
The extract contains high levels of polyphenols, plant compounds with strong antioxidant activity. These work by neutralising harmful free radicals generated by UV exposure, pollution, and natural metabolic processes. This helps reduce oxidative stress within skin cells.
Research also indicates the extract may absorb UV radiation directly, providing a degree of photoprotection, whilst its polyphenols can reduce inflammation and support the skin's natural barrier function through multiple pathways including antioxidant and anti-glycation activity.
Clinical Evidence & References
In vitro studies show ceratonia siliqua seed extract demonstrates strong antioxidant activity and polyphenol content comparable to established botanical extracts. Cell culture research indicates it may suppress reactive oxygen species and support glutathione production in skin fibroblasts, suggesting potential protective effects at a cellular level.
Limited in vivo research suggests the extract may offer photoprotective properties, with some studies reporting sun protection factor values and reduced erythema transmission. However, evidence in human subjects remains limited, and more research is needed to establish efficacy and optimal usage levels in skincare formulations.
How to Use
Ceratonia siliqua seed extract is typically found in serums, moisturisers, and targeted treatments. As with most botanical extracts, consistency of use will support better results. It pairs well with complementary antioxidants and can be used alongside sunscreen as part of a comprehensive skincare routine, though it should not replace dedicated sun protection products.
Safety & Precautions
Frequently Asked Questions
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Ceratonia Siliqua Seed Extract is a variant of Hydrolyzed Ceratonia Siliqua Seed Extract, the form you will most often see on an ingredients list.
A plant-derived conditioning agent that helps support skin hydration and softness
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