Condition
    Effectiveness 3/5

    Perilla Oil for Allergic Rhinitis

    Perilla oil has small-trial evidence for reducing seasonal allergic rhinitis symptoms, attributed to its rosmarinic acid, luteolin, and ALA content. Effects are modest and the evidence base is thin.

    Overview

    Perilla oil has small-trial evidence for reducing seasonal allergic rhinitis symptoms, attributed to its rosmarinic acid, luteolin, and ALA content. Effects are modest and the evidence base is thin.

    Verdict

    Mixed evidence

    Plausible adjunct for mild seasonal allergies, but not a replacement for antihistamines; leaf extracts have better evidence than the oil.

    How It Works

    Rosmarinic acid inhibits complement activation and reduces histamine release; luteolin stabilizes mast cells; ALA shifts eicosanoid balance away from pro-inflammatory leukotrienes.

    Dosing & Protocol

    Typical dose

    Recommended dose
    A perilla seed extract delivering roughly 50-200 mg rosmarinic acid daily, or 1-3 g perilla oil daily
    Expected timeframe
    2-4 weeks of consistent use.

    Protocol

    form
    Cold-pressed perilla oil or softgels
    duration
    Start 2-4 weeks before allergy season; continue through season
    co factor
    Often combined with quercetin in practice, though untested
    starting dose
    3g oil daily in divided doses

    Evidence

    What the studies say

    Japanese and Korean trials of perilla products report reduced sneezing, nasal itching, and eye symptoms in seasonal allergy sufferers, but most studies use perilla leaf extract rather than the oil, are small (n<50), and short (2-4 weeks). Effect sizes are modest compared to antihistamines.

    No studies are yet linked to both Perilla Oil and Allergic Rhinitis.

    Safety

    Caveats

    {"Most positive trials used perilla leaf, not seed oil","Effects are modest; severe allergies need standard therapy"}

    Less likely to help if

    {"People with moderate-to-severe rhinitis unlikely to get sufficient relief alone"}

    Medical Disclaimer

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    Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.