Herbal Extract
Barberry Extract (Berberis vulgaris)
Also known as: Berberis vulgaris, Barberry root bark, Berberine-containing barberry
Barberry extract is traditionally used in Ayurvedic and Chinese medicine, primarily valued for its berberine alkaloid content which has shown antimicrobial and modest metabolic effects in research. Clinical evidence is limited, with most support derived from berberine isolated studies rather than whole barberry extract preparations.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Every Barberry Extract (Berberis vulgaris) product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | BulkSupplements Barberry Extract Powder | 81 A- | $0.10 |
| 2 | NOW Foods Liver Refresh | 76 B+ | $0.50 |
| 3 | New Chapter Zyflamend Prostate | 73 B+ | $1.23 |
| 4 | New Chapter Zyflamend Mini Softgels | 68 B | $1.53 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much Barberry Extract (Berberis vulgaris) should I take?
The typical range is 300-600 mg daily (of standardized extract). Typically used for 4-12 weeks; long-term safety data limited
When should I take Barberry Extract (Berberis vulgaris)?
With meals for optimal absorption and reduced GI irritation. Recommended with food to minimize gastrointestinal upset.
Which form of Barberry Extract (Berberis vulgaris) is best?
Powder. Other forms in the catalog: Extract, Capsule, Tablet.
Is Barberry Extract (Berberis vulgaris) safe?
Commonly reported: Gastrointestinal upset (nausea, abdominal discomfort), Diarrhea, Constipation, Dizziness.
Which Barberry Extract (Berberis vulgaris) supplement scores highest?
BulkSupplements Barberry Extract Powder, at 81/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- Digestive support
- Antimicrobial support
- Metabolic health support
- Traditional immune support
How it works
- Berberine alkaloid acts as an antimicrobial agent
- May support glucose metabolism through AMPK activation
- Potential anti-inflammatory effects
- Traditional hepatic support mechanisms
Dosage
- Typical range
- 300-600 mg daily (of standardized extract)
- Timing
- With meals for optimal absorption and reduced GI irritation
- With food
- Recommended with food to minimize gastrointestinal upset
- Duration
- Typically used for 4-12 weeks; long-term safety data limited
- Special populations
- Avoid during pregnancy/lactation; use cautiously in liver disease
Forms
- Powder· 70/100
- Extract· 70/100
- Capsule· 70/100
- Tablet· 70/100
Safety
Common side effects
- Gastrointestinal upset (nausea, abdominal discomfort)
- Diarrhea
- Constipation
- Dizziness
Contraindications
- Pregnancy and lactation (potential uterotonic effects)
- Severe liver disease
- Bile duct obstruction
- Acute diarrheal diseases
Products containing Barberry Extract (Berberis vulgaris)
Top-scoring supplements in our catalog that list Barberry Extract (Berberis vulgaris) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Most human clinical evidence focuses on isolated berberine rather than whole barberry extract. Traditional use is well-documented, but controlled trials specifically on barberry extract are limited. Some indirect evidence from berberine research applies, but direct clinical validation for barberry root/bark extract is moderate at best.
Grade C: Mostly observational or small trials; mechanism is plausible but unproven at scale.
Related in Herbal Extract
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.