If you're looking for metabolic and blood sugar support, this liquid extract delivers **Cinnamon Bark** (Cinnamomum cassia) at 634mg per squeeze in a concentrated tincture format. Cinnamon has been studied for blood sugar management — a meta-analysis of RCTs found modest reductions in fasting glucose at doses of 1,000–6,000mg of whole cinnamon powder daily.

The challenge with liquid extracts is comparing dosage to the clinical research, which primarily used dried powder or standardized capsules. The label states an extraction rate of 175mg herb per 0.7mL with a 1:4 dry herb-to-menstruum ratio. Even at 2–4 servings per day as directed, you're likely below the doses used in most blood sugar trials. The cassia species also contains coumarin, which can be a concern at high daily intakes over time.

Cinnamon research overall shows small effects on blood sugar, and the evidence is mixed. If metabolic support is your primary goal, the clinical backing here is limited compared to nutrients with stronger trial data.

BioStacks
Herb Pharm

Cinnamon

Liquid · 0.7 mL × 2/day · 42 servings

iHerbAmazon

Best for

Metabolism

Ingredients (1)

Cinnamon Bark Extract

100%

Dose/day

1268 mg

Target

250–1000 mg

Form

—

Other Ingredients (3)

Cane AlcoholSolvent

Ethanol distilled from sugarcane used as a solvent and preservative in tinctures

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

How to Take It

Take it anytime

Timing doesn't matter for this one — taking it consistently does.

With or without food
Split into 2 doses across the day

On the label

Suggested use Shake well before using Adults: Add 1 squeeze of the dropper bulb to 4 oz. of water or juice, 2 or 4 times per day. Best taken between meals.

General guidance based on the ingredients, not a substitute for the label or your doctor.

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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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