Supplement
Rosmarinic Acid
SaveRosmarinic acid is a polyphenol ester found in rosemary, lemon balm, and perilla, with anti-inflammatory, antiallergic, and antioxidant properties.
Quick verdict
Moderate evidence for allergic rhinitis and inflammation. Often consumed as part of herbal extracts rather than isolated.
Evidence score
A rough internal score reflecting quantity, quality, and consistency of human evidence. Not a clinical recommendation.
What the research shows
Clinical trials of perilla extract (rich in rosmarinic acid) show benefit for seasonal allergies. Anti-inflammatory effects via COX-2 and LOX inhibition. Also studied for cognitive enhancement.
Benefits
- Reduces allergic inflammation
- Potent antioxidant
- May support cognitive function
Dosage notes
50–200 mg daily from standardized extracts. Perilla leaf extract typically provides 50–100 mg rosmarinic acid.
Side effects
- Mild GI discomfort
- Generally well tolerated
Who should be cautious
Generally safe at food-level doses. May potentiate anticoagulant effects.
What this page cannot tell you
Most studies use whole herb extracts. Isolated rosmarinic acid supplementation is less studied.
Leaderboard scores
- Immunity45
- Focus30
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