Comparison

Gluco6 vs GlucoBerry: Which Blood Sugar Supplement Discloses More?

By Satwasheel Gharde ·Updated August 2, 2026

Gluco6 and GlucoBerry both target healthy blood sugar support, but they land at genuinely different Trust Scores, 2.8/5 for Gluco6, 3.2/5 for GlucoBerry, and the reason is one of this site's clearest, most checkable transparency contrasts.

Disclosure: DigiproSpark may earn a commission if you buy through links on this page, at no extra cost to you. It does not affect our evaluation. Educational content only; not medical advice. See our affiliate disclosure and medical disclaimer.

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Comparison

Side-by-Side

Factor
Gluco6
GlucoBerry
Winner
Formula structure
Proprietary blend, individual doses undisclosed
No proprietary blend: every ingredient individually dosed
GlucoBerry's structural transparency advantage is real and verifiable on its own label
Headline ingredient
Gymnema, chromium, cinnamon, L-arabinose (Sukre)
Delphinol maqui berry extract, with a real published 3-month RCT measuring HbA1c change
GlucoBerry's headline ingredient has a directly relevant human trial behind it
A genuine, disclosed concern
Contains theacrine (TeaCrine), a real CNS stimulant, despite a "stimulant-free"-style marketing framing
No comparable undisclosed-stimulant issue found
Real for Gluco6, not offsetting-and-opposite for GlucoBerry: an asymmetric finding, not a wash
Trust Score
2.8/5, Conditional
3.2/5, Conditional
GlucoBerry scores higher, still Conditional overall
Guarantee
Vendor policy, confirm at checkout
180 days from order date, unopened bottles only
GlucoBerry's terms are the more favorable and more clearly documented of the two
Bottom line: GlucoBerry's fully-disclosed formula and Delphinol's real supporting trial are genuine, checkable strengths: that's the actual reason it scores higher. Gluco6's proprietary blend and its undisclosed theacrine stimulant are the specific, real reasons it scores lower. Neither product is a substitute for prescribed diabetes medication, and anyone on blood-sugar-lowering drugs should read our safety guide before starting either.

Why the Theacrine Disclosure Actually Matters

Theacrine (marketed under the brand name TeaCrine) is a purine alkaloid structurally similar to caffeine, with real documented stimulant effects on alertness and energy. Its presence in Gluco6's blend isn't disqualifying on its own, plenty of supplements legitimately include a mild stimulant, but it sits awkwardly next to marketing framing that emphasizes gentleness and avoids naming it as a stimulant. Anyone sensitive to caffeine-like compounds, or taking it later in the day, should know it's there before starting. GlucoBerry's ingredient list has no comparable undisclosed-stimulant issue, which is a real, asymmetric point in its favor, not just a difference in style.

What a Fully-Disclosed Formula Actually Buys You

GlucoBerry's lack of a proprietary blend means every ingredient's exact milligram amount is printed on the label, a reader (or their doctor) can directly compare what's in the bottle against the dose used in Delphinol's own published clinical trial, rather than trusting a blend total. Gluco6's proprietary blend means its individual ingredient amounts, gymnema, chromium, cinnamon, L-arabinose, are combined into one total weight, so there's no way to confirm any single ingredient is dosed at a clinically meaningful level. This is the same structural gap that caps Formula Transparency scores across many products on this site, not a Gluco6-specific flaw, but it's the central, honest reason GlucoBerry scores higher here.

Which One Should You Actually Consider?

If formula transparency and a directly-relevant clinical trial matter most to you, GlucoBerry is the stronger pick on paper. If you're specifically drawn to Gluco6's broader ingredient roster (gymnema and cinnamon both have real, independent evidence bases of their own), just go in aware of the undisclosed doses and the theacrine stimulant. Neither has been tested as a complete finished formula in its own dedicated clinical trial: both rely on evidence for individual ingredients, not the product as sold. Anyone on metformin, insulin, or another blood-sugar-lowering medication should read our Gluco6 & GlucoBerry medication-interaction safety guide before starting either, since blood-sugar-lowering ingredients can compound with prescribed medication.

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Disclosures

Medical disclaimer

This content is for educational purposes only and is not medical advice. It has not been evaluated by the FDA and is not intended to diagnose, treat, cure or prevent any disease. Consult a qualified healthcare professional before starting any supplement.

Who wrote this

We are not doctors. We are independent researchers who spend dozens of hours analyzing peer-reviewed clinical trials so you don't have to. Every claim on this page is scored against our 5-Point Quality Filter and linked to its source.

Affiliate disclosure

DigiproSpark may earn a commission from purchases made through affiliate links on this page at no extra cost to you. It does not change our editorial opinions.

Satwasheel Gharde, Founder & Head of Research, DigiproSpark

About the author

Satwasheel Gharde

Founder & Head of Research, DigiproSpark

Founder of Smiley Social and Head of Research at DigiproSpark. Personally researches and edits every supplement review here using the 5-Point Quality Filter: transcribing the printed Supplement Facts label, sourcing peer-reviewed human evidence (PubMed / PMC / NIH), and checking clinical dosing before any verdict. Our reviews are evidence-and-label analyses, not medical advice; material safety points (drug interactions, contraindications) are written conservatively and flagged for a qualified clinician or pharmacist to confirm. Conflict-of-interest: pages may contain affiliate links that can earn a commission, which never changes a rating. Corrections & editorial contact: smileysocial@digiprospark.com.

Author of 17 published product reviews on DigiproSpark, each researched under the 5-Point Quality Filter. See the methodology →

Last updated: August 2, 2026

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