Last verified: today
Black Currant Extract
Also known as: Ribes nigrum, blackcurrant extract, currant extract, black currant berry extract
Evidence under review. — Not yet rated
Berry extract rich in anthocyanins; early research suggests antioxidant and eye health benefits.
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What it does
Black currant extract comes from the small, dark berries of Ribes nigrum, a shrub native to Europe and Asia. It is exceptionally rich in anthocyanins — the pigments that give the berries their...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose
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Found in
What the Science Says
Black currant extract comes from the small, dark berries of Ribes nigrum, a shrub native to Europe and Asia. It is exceptionally rich in anthocyanins — the pigments that give the berries their deep purple-black color — which act as antioxidants in the body. Preliminary research and traditional use suggest it may support eye health, reduce inflammation, and help protect cells from oxidative stress, though robust clinical evidence is limited.
What It Doesn't Do
Not proven to treat or prevent any disease. No solid evidence it boosts athletic performance on its own. Don't expect dramatic vision improvements from a supplement dose. Not a substitute for eating actual fruits and vegetables. Marketing claims about 'superfruit' immune-boosting powers are far ahead of the science.
Evidence-Based Benefits
Delivers high levels of anthocyanins that neutralize free radicals and reduce oxidative stress.
Weak EvidenceEffective at: No established dose
May support visual function and reduce eye fatigue, particularly in low-light conditions.
Weak EvidenceEffective at: No established dose
Anthocyanins in black currant may help reduce markers of inflammation in the body.
Weak EvidenceEffective at: No established dose
Absorption & Bioavailability
Moderate — anthocyanins from black currant are absorbed in the gut, but bioavailability varies significantly depending on the extract form, processing method, and individual gut microbiome. Standardized extracts may improve consistency.
Red Flags to Watch For
- No standardized clinical dose has been established — products vary widely in potency and anthocyanin content
- Many products are not standardized for anthocyanin percentage, making it hard to compare or verify effectiveness
- Limited published clinical trial data means most health claims rely on lab studies or traditional use, not human trials
- May interact with blood-thinning medications due to antiplatelet properties of anthocyanins — consult a doctor if on anticoagulants
Products Containing Black Currant Extract
See how Black Currant Extract is used in these analyzed products:
Research Sources
- General knowledge
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25