Herb Profile
Bayberry
Myrica cerifera
Bayberry (Myrica cerifera) carries a Grade C rating — limited evidence.
Last reviewed: •3 sources citedReport a correctionProfile-wide ·C Limited
Use extra caution — Immune modulating activity is plausible; use caution with autoimmune disease, transplant medicines, or immunosuppressants. Details
- Evidence
- Limited Evidence
- Typical onset
- Varies by prep
- Safety rating
- High caution
- Best for
- Anti Inflammatory, Inflammatory signaling
- Avoid / review if
- Pregnancy/Breastfeeding Without Clinician Supervision, Known Allergy To The Plant/Family, Potential Interaction Concern With Immunosuppressants
Safety
Safety & Cautions
Immune modulating activity is plausible; use caution with autoimmune disease, transplant medicines, or immunosuppressants.
High caution
Caution level: High. Multiple caution categories apply, or the record uses avoid/contraindication language.
- Interaction-AwareMedication or interaction context is explicitly noted.
- Pregnancy/Breastfeeding CautionPregnancy or breastfeeding caution language is present.
Detailed safety fields
Pregnancy, breastfeeding, and contraindications
- Pregnancy/Breastfeeding Without Clinician Supervision
- Known Allergy To The Plant/Family
- Potential Interaction Concern With Immunosuppressants
- Use Clinician Review For High Dose Extracts Or Chronic Use.
Safety classifications
- Interaction-Aware: Medication or interaction context is explicitly noted.
- Pregnancy/Breastfeeding Caution: Pregnancy or breastfeeding caution language is present.
Full safety note
- Immune modulating activity is plausible; use caution with autoimmune disease, transplant medicines, or immunosuppressants.
Safety labels
- Interaction-Aware
- Pregnancy/Breastfeeding Caution
Evidence
Evidence Summary
Evidence lens
Read as directional context, not settled clinical proof.
LimitedLimited Evidence
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped — Inflammatory Signaling Modulation · NF KB Modulation
Research maturity: Emerging research — Long Term Human Evidence May Be Limited.
Safety boundary: Safety note available — Immune modulating activity is plausible; use caution with autoimmune disease, transplant medicines, or immunosuppressants.
This profile cites 3 human studies.
Study design details
Evidence Grade
Grade C: Limited Evidence
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Systematic review
- Risk of Bias
- Low
- Consistency
- Not assessed
Strongest recorded design is a systematic review, drawn from 2 recorded studies, 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
Clinical Study Summaries (3)1 human evidence source · 0 human trials · Participant totals not consistently reported · Consistency not yet classifiable
Filter by study class
Showing 3 of 3 studies.
What the evidence actually shows
This table contains 3 structured sources, including 1 human evidence source; 0 are human trials.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
Amygdalin - A pharmacological and toxicological review He XY et al. · J Ethnopharmacol · 2020 Background | Systematic review Uses a predefined method to find and evaluate relevant studies, but may or may not pool their results statistically. | — | — | — | — | — | — | PubMed → |
Myricetin: A review of the most recent research Song X et al. · Biomed Pharmacother · 2021 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Xue L et al. · Plant Physiol · 2024 Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | PubMed → |
Dosing & Timing
- No standardized dose
- Preparation specific; use standardized product label for Fruit/berry preparations are commonly used as foods and require source backed dosage review before therapeutic claims.
How Bayberry works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Bayberry Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & biological pathways (preclinical)
- Inflammatory Signaling Modulation
- NF KB Modulation
Active Compounds
Key constituents studied in Bayberry, with full pharmacology and safety profiles.
Compare related active botanicals
Explore botanicals with similar chemistry, effects, or safety considerations in the Botanical Activity Atlas.
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Review available sources for Bayberry
Independent database mapping — evaluated separately from safety and efficacy scores.
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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.
Founder & Head Researcher · Oak Ridge, TN · Last reviewed August 2026
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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