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Herbal polyphenols · in-depth review

Rosmarinic Acid

Rosmarinic Acid

Rosmarinic acid is a caffeic-acid ester in rosemary, perilla, and lemon balm. Trials focus on seasonal nasal discomfort and local antioxidant activity.

Also known asNo common aliases yet
Related diseasesAllergic rhinitis
Related symptomsNasal congestion

Eases seasonal nasal discomfort

Rosmarinic acid can affect inflammatory mediators and allergy-related signals in the nasal mucosa, so congestion and itching in pollen season are often milder. For people who clog and run at the first seasonal wind, changes in easier breathing and how often they blow their nose are more often noticeable after several weeks of continued use.

Supports local antioxidant defense

This caffeic acid ester shows up more often in observations of oxidative burden on skin and mucosa; local redness, heat, and dry discomfort can be recorded together. For people whose skin reddens and tightens after sun or dryness, differences in evenness of tone and comfort are more often noticeable after several weeks of continued use.

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With foodTake with a meal (not on an empty stomach)
Best timeMorning or midday

After continued use, reassess by how you feel and whether you still need it.

General wellnessTypical daily intake for general wellness: rosmarinic acid often 100–300 mg
Specific needsNo official UL; typical adult supplement daily safety upper limit is about 500 mg, and do not exceed this on your own long term.

How oftenUsually fine to use daily; adjust to personal need.

Cautions

People with Lamiaceae allergy should use caution.

Common side effects

· Some people may notice mild digestive or other discomfort.

Rare but important

· If discomfort persists or you worry about drug interactions, seek professional advice.

Long-term dependenceNo typical addiction evidence; do not exceed labeled amounts on your own long term.

Medical disclaimerThis page is compiled by the HerbBB editorial team for general health information only. It is not a substitute for advice from a doctor, pharmacist, or other qualified clinician. If you have a health condition, take medicines, or are pregnant or breastfeeding, speak with a professional first.