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Nootropic

Rosemary Extract

Also known as: Rosmarinus officinalis, Rosemary Extract (Rosmarinus officinalis), Rosmarinus officinalis extract, Rosemary leaf extract

B
Evidence

Rosemary extract is a polyphenol-rich herbal ingredient containing carnosic acid and carnosol, traditionally used for cognitive and antioxidant support. Preliminary evidence suggests potential benefits for memory and neuroprotection, though human clinical data remains limited.

Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.

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Primary uses

  • Memory
  • Alertness
  • Antioxidant
  • Circulation
  • Cognitive function and memory
  • Antioxidant support
  • Neuroprotection
  • Brain health

How it works

  • Rosmarinic acid antioxidant
  • Carnosic acid neuroprotective
  • AChE inhibition mild

Dosage

Typical range
500-750 mg extract daily
Timing
Any time
With food
Optional
Duration
Safe long-term
Special populations
Memory, antioxidant

Forms

  • Extract
  • Essential oil
  • Whole herb
  • Powder extract· 70/100
  • Standardized extract· 70/100
  • Capsule· 70/100
  • Liquid extract· 70/100

Safety

Common side effects

  • GI upset

Contraindications

  • None

Evidence notes

Aromatic cognitive enhancer

Grade B: Some human trials support key claims; further confirmation needed.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.