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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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The highest-scored Rosemary Extract product in our catalog (79/100). Track dose and overlaps in the app.
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Every Rosemary Extract product we have scored

Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.

Common questions

How much Rosemary Extract should I take?

The typical range is 500-750 mg extract daily. Safe long-term

When should I take Rosemary Extract?

Any time. Optional.

Which form of Rosemary Extract is best?

Extract — Standardized. Other forms in the catalog: Essential oil, Whole herb, Powder extract, Standardized extract, Capsule, Liquid extract.

Is Rosemary Extract safe?

Commonly reported: GI upset. Serious warnings: None at normal doses. Safe

Which Rosemary Extract supplement scores highest?

Life Extension PalmettoGuard Saw Palmetto, Nettle Root and Beta-Sitosterol, at 79/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.

Primary uses

  • Memory
  • Alertness
  • Antioxidant
  • Circulation
  • 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
  • Capsule· 70/100

Safety

Common side effects

  • GI upset

Contraindications

  • None

Products containing Rosemary Extract

Top-scoring supplements in our catalog that list Rosemary Extract on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.

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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.