Each capsule combines 450mg of **Berberine HCl** with 550mg of **Berbevis** — a phytosome form that absorbs significantly better than standard berberine due to its phospholipid binding. At just one capsule you're already near the 500mg clinical floor for supporting healthy blood sugar and insulin sensitivity, and the enhanced absorption from the phytosome portion means your effective dose is higher than the label milligrams suggest.

The suggested two capsules twice daily puts you well above the studied range, which may not be necessary. If your goal is metabolic support, starting with one capsule twice daily with meals gives you solid coverage while keeping GI comfort in check — berberine can cause digestive discomfort at higher doses.

The main thing to watch: berberine interacts with several medications, particularly those processed through the CYP3A4 enzyme pathway. If you're on any prescriptions, check with your doctor before adding this one.

BioStacks
Thorne

Berberine

1 Capsule × 2/day · 30 servings · $1.47/serving

iHerbAmazon

Best for

Metabolism

Ingredients (2)

Berbevis

100%

Dose/day

1100 mg

Target

500–1500 mg

Form

Premium

Berberine Hydrochloride

100%

Dose/day

900 mg

Target

500–1500 mg

Form

Premium

Other Ingredients (2)

Calcium LaurateEmulsifier

Calcium salt of lauric acid used as a lubricant

HypromelloseCapsule

Plant-derived capsule material from cellulose

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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