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Compound Profile

Cinnamaldehyde

Major aromatic aldehyde in cinnamon bark influencing metabolic and inflammatory signaling.

Safety context — Essential oil constituents can irritate skin/mucosa and may be toxic internally at high doses; use dilution and herb specific safety. Details

Last reviewed: Report a correctionProfile-wide ·B Moderate
Cinnamaldehyde monograph visual
Generated profile category visual

At a glance

From this profile's structured data
Evidence
Grade B
Safety
Essential-oil constituents can irritate skin/mucosa and may be toxic internally at high doses; use dilution and herb-specific safety.
Profile context
TRPA1, inflammatory enzymes
Next steps

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Quick stats

Evidence level
Moderate evidence
Typical onset
Varies by prep
Safety rating
Safety context: Use caution
Best for
TRPA1, Inflammatory Enzymes

Botanical Context

Source botanicals and comparison guides related to Cinnamaldehyde.

Safety

Safety & Cautions

Essential oil constituents can irritate skin/mucosa and may be toxic internally at high doses; use dilution and herb specific safety.

Standard caution

Caution level: Standard. No specific caution categories were detected in the source record.

Evidence Summary

Profile-wide ·B Moderate

Evidence lens

Useful signal, but study design, dose, and population still matter.

ModerateModerate evidence

Human clinical evidence: Not the primary signal

Mechanistic / preclinical: Mechanism mapped — Inflammatory Signaling Modulation · Metabolic Regulation · AMPK Signaling

Research maturity: Theoretical / mechanistic research — Mechanistic or unresolved evidence is kept separate from established human outcomes.

Safety boundary: Safety note available — Essential oil constituents can irritate skin/mucosa and may be toxic internally at high doses; use dilution and herb specific safety.

Evidence Strength

Confidence estimate based on the design quality and consistency of published clinical trials.

Moderate evidence

Cinnamaldehyde has a moderate evidence rating.

General wellnessGeneral wellness
Effects
2
Evidence Grade

Grade B: Moderate Evidence

Evaluation of methodological rigor, population reach, and evidence alignment.

Design Match
Meta analysis
Risk of Bias
Low
Consistency
Not assessed
Strongest recorded design is a meta analysis, drawn from 1 recorded study, 1 in people.
How evidence grades work

Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.

Strong
Multiple RCTs, consistent direction, adequate effect size
Moderate
Some RCTs or consistent observational data in humans
Preliminary / Mixed
Animal or in-vitro only, or conflicting human data
Traditional / Theoretical
Traditional use only; no controlled human trials

How Cinnamaldehyde Works

Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.

Mechanism Pathway — How Cinnamaldehyde Works

How Cinnamaldehyde WorksCinnamaldehyde acts on biological target pathways via anti inflammatory, leading to trpa1.CinnamaldehydeBiological TargetBiological pathwayAnti InflammatoryTrpa1Observable outcomeMetabolicRegulation
CompoundTarget / ReceptorMechanismEffect / Outcome

Dosing

Common form
softgel or liquid oil
No standardized dose
Our source data records the usual product form for this ingredient but no studied dose. Preparations differ widely, so follow the standardization on the product you actually have and speak to a clinician before starting.
Mechanisms & biological pathways

Preclinical mechanism details from scientific profiles; these represent plausible pathways but do not guarantee clinical efficacy in humans.

  • Inflammatory Signaling Modulation
  • Metabolic Regulation
  • AMPK Signaling
  • NF KB Modulation

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Related research paths

Compare & Sourcing

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Safety first · Harm reduction

This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.

Learn how we evaluate confidence, safety, and intensity on the methodology page.

Editorial Review

Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.

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