Herb Profile
Aloe Vera
Aloe vera
Aloe vera (Aloe barbadensis) is a succulent whose clear inner leaf gel is used topically for skin and taken orally as a supplement.
Last reviewed: •4 sources citedReport a correctionProfile-wide ·C Limited
Use extra caution — Oral latex/whole leaf aloe can cause diarrhea, electrolyte loss, and drug interactions; avoid pregnancy and kidney disease. Details
- Evidence
- Limited Evidence
- Typical onset
- Varies by prep
- Safety rating
- High caution
- Best for
- Immune, Metabolic, Skin Support, Inflammatory signaling
- Avoid / review if
- Pregnancy, Inflammatory Bowel Disease, Kidney Disease
Safety
Safety & Cautions
Oral latex/whole leaf aloe can cause diarrhea, electrolyte loss, and drug interactions; avoid pregnancy and kidney disease.
High caution
Caution level: High. Multiple caution categories apply, or the record uses avoid/contraindication language.
- Interaction-AwareMedication or interaction context is explicitly noted.
- Stimulant-Like ProfileStimulant-like or activating caution language is present.
Detailed safety fields
Pregnancy, breastfeeding, and contraindications
- Pregnancy
- Inflammatory Bowel Disease
- Kidney Disease
- Oral Latex Use In Children
- Oral Latex May Interact With Diuretics
- Digoxin
- Corticosteroids
- Laxatives
- And Antidiabetics.
Safety classifications
- Interaction-Aware: Medication or interaction context is explicitly noted.
- Stimulant-Like Profile: Stimulant-like or activating caution language is present.
Full safety note
- Oral latex/whole leaf aloe can cause diarrhea, electrolyte loss, and drug interactions; avoid pregnancy and kidney disease.
Safety labels
- Interaction-Aware
- Stimulant-Like Profile
Evidence-based safety
Caution when combined
Severity and certainty are shown separately. A high-priority caution can still be theoretical: these pairings are screened from shared contraindication mechanisms and are not automatically documented clinical interactions. Provenance identifies the source fields that produced each flag; it does not upgrade the certainty of the pairwise claim.
Moderate Caution
110 flagged pairingsBlood-sugar lowering
Moderate Caution
110 flagged pairingsBlood-sugar lowering
Representative pairings are shown below. Large mechanism groups are intentionally summarized to keep profiles focused and crawl-efficient.
Blood-sugar loweringCertainty: Theoretical
Data provenance recorded for 110 of 110 pairings in this mechanism group.
- Acarbose — Theoretical interaction certainty
- ajoene — Theoretical interaction certainty
- Allicin — Theoretical interaction certainty
- Alpha-Lipoic Acid — Theoretical interaction certainty
- American Ginseng Extract — Theoretical interaction certainty
- Andrographis — Theoretical interaction certainty
- Anemarrhena Asphodeloides — Theoretical interaction certainty
- Tarragon — Theoretical interaction certainty
- Ashoka — Theoretical interaction certainty
- Astragalus — Theoretical interaction certainty
- Astragalus Membranaceus — Theoretical interaction certainty
- Bael — Theoretical interaction certainty
+98 more pairings share this mechanism. Use the Safety Checker to review a specific combination.
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 · Metabolic Regulation · Immune Signaling Modulation
Research maturity: Emerging research — Long Term Human Evidence May Be Limited.
Safety boundary: Safety note available — Oral latex/whole leaf aloe can cause diarrhea, electrolyte loss, and drug interactions; avoid pregnancy and kidney disease.
This profile cites 4 human studies.
Study design details
Evidence Grade
Grade C: Limited Evidence
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Meta-analysis
- Risk of Bias
- Low
- Consistency
- Consistent
Strongest recorded design is a meta-analysis, drawn from 7 recorded studies, 4 in people. No disagreement is recorded across them.
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 (6)2 human evidence sources · 0 human trials · ~415 participants across 1 human evidence source with reported N · Consistency not yet classifiable
Filter by study class
Showing 6 of 6 studies.
What the evidence actually shows
This table contains 6 structured sources, including 2 human evidence sources; 0 are human trials. Across 1 human evidence source with a reported sample size, the approximate participant total is 415; overlapping publications may include some of the same people.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
PubMed · Nutrients · 2016 Background | Meta-analysis Statistically combines results from multiple eligible studies; confidence still depends on the quality, consistency, and directness of those studies. | n=415 | — | — | — | — | — | PubMed → |
Background | Meta-analysis Statistically combines results from multiple eligible studies; confidence still depends on the quality, consistency, and directness of those studies. | — | — | — | — | — | An eight-trial synthesis reported signals in glucose and HbA1c in some prediabetes or diabetes studies, but preparations were heterogeneous and certainty was limited. This does not establish aloe as a diabetes treatment. | PubMed → |
Pharmacological Update Properties of Aloe Vera and its Major Active Constituents Sánchez M et al. · Molecules · 2020 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Aloe Barbadensis Miller (Aloe Vera) Kaur S et al. · Int J Vitam Nutr Res · 2024 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Aloe vera-An Extensive Review Focused on Recent Studies Catalano A et al. · Foods · 2024 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Memorial Sloan Kettering: Aloe vera — safety and interactions Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | Source → |
Dosing & Timing
- No standardized dose
- Preparation specific; use standardized product label for Inner leaf gel for topical/digestive products and require source backed dosage review before therapeutic claims.
How Aloe Vera works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Aloe Vera Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & biological pathways (preclinical)
- Inflammatory Signaling Modulation
- Metabolic Regulation
- Immune Signaling Modulation
- AMPK Signaling
- Glucose Metabolism Support
- Inflammatory
- Gut Microbiome
Active Compounds
Key constituents studied in Aloe Vera, 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.
Sourcing options
Aloe Vera product picks
Recommendation status
Product recommendations are not shown for this profile because the current site safety and monetization policy does not permit them.
Product form & quality guidelines
When sourcing Aloe Vera, verify the label for:
- Standardized extract: Confirm active content percentages on the supplement facts panel (e.g. standardized to specific marker compounds) rather than simple raw herb weights.
- Third-party testing: Look for independent purity labels (USP, NSF, ConsumerLab, or Eurofins) to ensure the product is free from heavy metals, solvents, and contaminants.
- Form bioavailability: Ensure the form matches evidence-supported configurations (e.g. standardized active extracts like bacosides, withanolides, or curcuminoids) for optimal onset and digestion tolerance.
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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