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Rosmarinic acid

Clinical trial

Mechanism of Action

Potent antioxidant inhibiting COX/LOX pathways and complement cascade; antimicrobial and antiviral activity; chelates iron reducing oxidative stress
Rosmarinic acid inhibits complement-dependent inflammatory processes by interfering with C3 convertase. It suppresses NF-κB nuclear translocation and downstream pro-inflammatory cytokine expression. Scavenges reactive oxygen species and chelates pro-oxidant metal ions. Also inhibits lipoxygenase and cyclooxygenase pathways.
Potent antioxidant and anti-inflammatory through polyphenol action; inhibits NF-κB, reduces prostaglandin production
Anti-inflammatory and antioxidant; inhibits complement and eicosanoid pathways relevant to mucosal catarrh and bronchial inflammation
Antioxidant via Nrf2 pathway activation; anti-inflammatory through LOX and COX inhibition; anti-allergic via histamine release inhibition
GABA-transaminase inhibition increases GABA availability; antioxidant; anti-thyroid (inhibits TSH binding)
Potent hydrogen-donating antioxidant and chelator of transition metal ions; inhibits complement activation and reduces leukotriene formation via 5-lipoxygenase inhibition; downregulates NF-κB and AP-1 transcription factors; anti-allergic via IgE-mediated mast cell degranulation inhibition; moderate acetylcholinesterase inhibitory activity at µM concentrations
Potent antioxidant and anti-inflammatory compound shared across Lamiaceae; inhibits prostaglandin synthesis
Inhibits complement-dependent inflammatory processes by interfering with C3 convertase. Suppresses NF-kB nuclear translocation and downstream pro-inflammatory cytokine expression (TNF-alpha, IL-1beta, IL-6). Scavenges ROS and chelates pro-oxidant metal ions. Inhibits lipoxygenase and cyclooxygenase pathways.
Antioxidant and anti-inflammatory through NF-kB inhibition; hepatoprotective; supports intestinal barrier
Potent inhibition of complement-dependent inflammatory cascades by interfering with C3 convertase activation. Suppresses IgE-mediated histamine release from mast cells and basophils. Inhibits lipoxygenase (5-LOX) and cyclooxygenase-2 (COX-2) pathways, reducing leukotriene and prostaglandin synthesis. Scavenges superoxide and peroxynitrite radicals. Inhibits NF-kB translocation and subsequent pro-inflammatory gene transcription.
Potent antioxidant and anti-inflammatory; inhibits pro-inflammatory cytokines; protects vascular endothelium
Antioxidant; anti-inflammatory through COX-2 and TNF-alpha inhibition; inhibits acetylcholinesterase
Key antiviral (influenza), antioxidant, and anti-inflammatory compound; well-documented pharmacological activity
Anti-inflammatory, antioxidant, and antiviral; inhibits prostaglandin biosynthesis
Antiviral (HSV-1, HSV-2 — inhibits viral attachment); anti-inflammatory; antioxidant; anti-thyroid (TSH receptor inhibition)
Potent anti-inflammatory and antioxidant; inhibits prostaglandin E2 synthesis
Anti-inflammatory; antioxidant; antiviral; anti-allergic (histamine inhibition)
Antioxidant and anti-inflammatory phenolic ester; inhibits arachidonic acid cascade and complement activation
Anti-inflammatory; antioxidant; GABA-transaminase inhibition

Research Notes

BasilWestern

Anti-inflammatory and antioxidant activity extensively documented in cell and animal studies. COX-2 and LOX inhibition well characterised. Bioavailability studies show moderate oral absorption.

BorageWestern

Anti-inflammatory and anti-allergic effects have been demonstrated in clinical trials — seasonal allergic rhinitis symptoms were significantly reduced by rosmarinic acid-rich perilla extract in an RCT. In the context of borage, rosmarinic acid in the leaf and flower contributes to the overall anti-inflammatory profile of aerial part preparations. Content typically ranges from 1–3% of dried leaf.

ComfreyWestern

Rosmarinic acid in comfrey contributes significant antioxidant and anti-inflammatory effects beyond allantoin's wound-healing action. Demonstrates pain-reducing properties in musculoskeletal inflammation through dual mechanism of oxidative stress reduction and inflammatory mediator inhibition.

Ground IvyIntegrative

Rosmarinic acid is a well-studied phenolic compound with established anti-inflammatory, antioxidant, and anti-allergic properties. Inhibits complement activation and eicosanoid synthesis.

Rosmarinic acid contributes to holy basil adaptogenic and anti-inflammatory properties. Demonstrates neuroprotective and anti-diabetic effects in preclinical models. Randomized trials support anxiolytic effects.

Lemon BalmWestern

RCTs show improved mood and cognitive function; in vitro inhibition of TSH receptor binding; GABA-T inhibition confirmed

MarjoramWestern

A randomized trial (Takano et al., 2004) demonstrated rosmarinic acid-containing Perilla extract significantly reduced allergic rhinitis symptoms vs. placebo. Multiple clinical trials for rosemary and Perilla (both rosmarinic acid-rich) support anti-allergic and antioxidant efficacy. AChE inhibition confirmed in enzyme kinetic studies (IC50 ~280 µM).

Extensively studied phenylpropanoid with strong antioxidant, anti-inflammatory, and antimicrobial activity in preclinical and clinical contexts.

Anti-allergic effects demonstrated in RCT for seasonal allergic rhinitis (Takano et al., 2004) — perilla leaf extract standardized to rosmarinic acid reduced nasal symptoms significantly vs placebo. In vitro studies show inhibition of histamine release from mast cells. Anti-inflammatory potency comparable to indomethacin in carrageenan-induced paw edema models.

Rosmarinic acid demonstrates antioxidant capacity superior to many synthetic antioxidants. Animal models show hepatoprotective effects and intestinal tight junction integrity.

Perilla leaf extract enriched in rosmarinic acid significantly reduced symptoms of seasonal allergic rhinitis in a double-blind RCT (n=30, Takano et al., 2004) — nasal symptoms, eye itching, and PNIF improved vs placebo. Anti-inflammatory effects comparable to dexamethasone in murine ear edema models. In vitro inhibition of hyaluronidase and histamine release from RPM cells. Oral bioavailability studies show rapid absorption with peak plasma levels at 30 minutes and partial metabolism to caffeic acid conjugates.

RosemaryWestern

Rosmarinic acid demonstrates anti-inflammatory activity reducing TNF-alpha and IL-6 in vascular inflammation models. Protects against atherosclerotic progression through antioxidant mechanisms. Major polyphenol in Rosemary.

SageWestern

Rosmarinic acid shows significant neuroprotective effects. It inhibits acetylcholinesterase, preserving acetylcholine levels. Multiple RCTs demonstrate cognitive improvement in healthy volunteers and Alzheimer's patients.

SanicleWestern

Rosmarinic acid has demonstrated antiviral activity against influenza viruses and broad anti-inflammatory effects through prostaglandin inhibition. Well-characterised pharmacologically.

SavoryWestern

Rosmarinic acid is a well-characterised phenolic acid with demonstrated anti-inflammatory activity through COX inhibition and antiviral properties.

Self-HealWestern

Inhibits HSV-1 attachment and penetration in vitro; anti-inflammatory via COX-2 inhibition; inhibits TSH binding (basis for thyroid-related use in TCM)

SpearmintWestern

Extensively studied phenylpropanoid with strong anti-inflammatory and antioxidant activity.

ThymeWestern

Potent anti-inflammatory and antioxidant; inhibits histamine release from mast cells; antiviral activity against respiratory viruses

Wild ThymeWestern

Rosmarinic acid is a well-studied phenolic compound with established antioxidant, anti-inflammatory, and anti-allergic properties.

Well-characterised compound from Lamiaceae family; contributes to anti-anxiety and anti-inflammatory properties

Found In 20 Herbs

3D Molecular Structure

Hydroxycinnamic Acid Ester
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Rosmarinic acid

Hydroxycinnamic Acid EsterBioactive phytochemical with therapeutic properties

Representative pattern: C₇H₆O₃

Atoms
Carbon
Oxygen
Hydrogen

Related Compounds (Hydroxycinnamic Acid Ester)

Live Research

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This information is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare practitioner before using any herbal product.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This content is for educational purposes only and is not a substitute for professional medical advice.