2026 Supplement Comparison
An honest look at how the four most-searched blood sugar support products stack up — ingredients, dosing, certifications, price, and guarantee.
| Feature | IntelliSync 1920mg · 5 Pathways | Thorne Berberine 500 | Glucocil | CinSulin |
|---|---|---|---|---|
| Active Ingredients |
Berberine 500mg Chromium 200mcg Fenugreek 250mg ALA 150mg Banaba 100mg |
Berberine HCl 500mg only |
14-ingredient proprietary blend |
CinSulin cinnamon, InSea2, Crominex |
| Berberine Dose per Serving | 500mg | 500mg | ~500mg (proprietary blend) | 0mg — no berberine |
| Clinically-Studied Pathways Targeted | 5 pathways | 1 pathway | ~4 pathways | 2 pathways |
| Independently 3rd-Party Tested | Yes — verified | Yes — NSF certified | No — self-tested only | Self-tested (Life Extension) |
| Made in USA | Yes | Yes | Yes — GMP registered | Yes |
| GMP Certified | Yes | Yes | GMP registered | Yes |
| Money-Back Guarantee | 60 days | Retail only | Not disclosed | Not disclosed |
| Price per Serving |
$1.63/mo ($49/30 servings) |
$1.47/serving ($44/60 caps, 2/day) |
$1.15/serving ($69/60 servings) |
$0.52–0.67/serving ($47–60/90 caps, 1/day) |
| Subscription Discount Available | Yes — up to 34% off | Via thorne.com | Yes | Not disclosed |
* Pricing based on public product listings as of June 2026. Serving sizes reflect each brand's recommended dose. CinSulin price shown at $47/90 capsules = ~$0.52/serving for 1 capsule/day; $60 = ~$0.67/serving. Thorne price at $44/60 capsules = ~$1.47/serving for 2 capsules/day (their labeled protocol).
The Science
Most blood sugar supplements rely on a single ingredient — usually berberine. Berberine is well-studied, but it addresses one mechanism of glucose control. If your body needs support in multiple areas, one ingredient can't cover them all.
Glucocil's 14-ingredient proprietary blend sounds impressive until you realize you can't verify individual doses. "2,250mg of active ingredients" is a marketing number — the actual dose of each compound inside that blend is undisclosed. IntelliSync discloses every ingredient and every dose on the label.
IntelliSync combines five ingredients at clinically-studied doses — Berberine (AMPK activation), Chromium (insulin sensitivity), Fenugreek (carb absorption), ALA (oxidative stress), Banaba (glucose uptake). Each targets a different mechanism. Together, they cover the major pathways glucose management depends on. See how this compares to metformin →
Real IntelliSync Customers
60-Day Money-Back Guarantee
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Start with IntelliSync and see the difference a complete formula makes — backed by a 60-day guarantee.