Rosemary extract (carnosic acid)

Tier 3 — weak evidence · Cognition · Antioxidant · Neuroprotection

Contains carnosic acid and rosmarinic acid with strong antioxidant and anti-inflammatory activity. Inhaling rosemary aroma improved cognitive performance in several trials. Oral extract shows modest memory benefits in older adults. EFSA approved rosemary extract as a natural food antioxidant preservative. Very safe at culinary and standard supplement doses. Concentrated extracts are more studied than essential oil.

Dose: 500 mg/day rosemary extract standardised to carnosic acid; aroma inhalation also studied for cognition