Rosemary contains carnosic acid and rosmarinic acid — both potent Nrf2 activators and antioxidants. A 2012 study found rosemary extract (750mg/day) improved cognitive performance and mood in elderly. The aroma alone (essential oil inhalation) improved alertness and memory in multiple studies (Moss 2003 — 'Northumbria rosemary studies'). Carnosol inhibits COX-2 and NF-κB. Rosemary extract is used as a natural food preservative (EU-approved E392) precisely because of its antioxidant potency. Dose: 500-750mg/day extract or rosemary aroma inhalation for cognitive effects. --- *Reviewed by the Dose AI Research Team and Clinical Advisory Board* *Last updated: 2026-04-06*
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.