Polyphenol
Rosmarinic Acid
A plant compound with antioxidant and neuroprotective properties found in herbs like rosemary.
KÖGN Health grades Rosmarinic Acid as B (Moderate evidence) and rates it 3.6 out of 5.
Last reviewed · June 2026
Primary effects
- Neuroprotection
- Reduced inflammation
- Cognitive support
How it works
Reduces oxidative stress and supports neurotransmitter balance.
Overview
Rosmarinic Acid is a polyphenol found in several aromatic herbs, particularly rosemary and lemon balm. It has been studied for its antioxidant and anti-inflammatory effects, which may support brain health over time. However, direct human evidence for cognitive enhancement is still limited, and its effects are considered subtle and supportive rather than performance-driven.
Related ingredients
Graded entries that target the same cognitive goals.
Categories
Educational information, not medical advice. The evidence grade is KÖGN’s editorial assessment of published research, not a health claim. Speak to a qualified clinician before changing what you take.