NOW® GlucoFit® 1.33 mg (60 Softgels) — Standardized Banaba Leaf Extract for Healthy Glucose Support
NOW® GlucoFit® is a specialized botanical extract made from the leaves of the wild Banaba tree (Lagerstroemia speciosa), standardized to deliver a guaranteed minimum of 18% active corosolic acid. This potent plant compound works at the cellular level to help your body shuttle carbohydrates and sugars out of your bloodstream and directly into your muscle cells where they are burned for clean, daily energy. By supporting your body's natural glucose transport pathways, GlucoFit® helps you maintain balanced blood sugar levels that are already within normal healthy ranges without causing energy crashes.
Quick Specs Snapshot
✓Active Form & Potency: 1.33 mg of patented GlucoFit® Banaba Leaf Extract yielding a minimum of 18% corosolic acid (~0.24 mg of pure corosolic acid per miniature softgel).
✓Supply & Value Math: 60 easy-to-swallow softgels per container, delivering a full 30 to 60-day supply of clinically studied extract for just pennies a day.
✓Formulation Purity: Formulated in an oil-based softgel carrier for enhanced absorption; free from wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, and sesame.
"Right-Fit" Buyer's Guide & Botanical Form Comparison
Why the Form Matters: Many budget supplement brands sell generic banaba leaf powder that contains only 1% corosolic acid—or worse, unstandardized ground leaf material that provides unpredictable results [1, 2]. NOW® GlucoFit® utilizes an advanced, pharmaceutical-grade extraction process concentrated to a minimum 18% corosolic acid [1]. Furthermore, because corosolic acid is a fat-soluble triterpenoid nutrient, taking it in an oil-based softgel with rice bran oil dramatically enhances intestinal absorption compared to dry, chalky cellulose capsules [2].
Is This Formula Right for You?
Ideal For Shoppers Who:
✓ Want natural daily support to keep post-meal blood sugar levels steady and within a healthy range [1, 3].
✓ Struggle to swallow large pills and want an ultra-compact, smooth miniature softgel that goes down effortlessly.
✓ Prefer a clean, standalone botanical formula rather than complex multi-ingredient blends that can trigger digestive upset.
Consider Another Option If:
✗ You adhere to a 100% vegetarian or vegan lifestyle (the softgel shell contains certified BSE-free bovine gelatin).
✗ You are seeking a comprehensive metabolic stack that includes berberine, chromium, and alpha-lipoic acid in one single capsule.
✗ You experience recurrent episodes of hypoglycemia (abnormally low blood sugar) without physician oversight.
Risk-Free Assurance: Every purchase at VitaNet®, LLC is backed by our unconditional 100% money-back guarantee—even on opened bottles, with return shipping covered—allowing you to evaluate personal tolerance and digestive comfort completely risk-free.
Cellular Mechanisms: How Corosolic Acid Works Under the Hood
To understand how GlucoFit® works, picture your muscle cells like houses with closed garage doors, and circulating blood sugar (glucose, chemical formula C6H12O6) like cars driving on a busy highway. When you eat carbohydrates, glucose enters your bloodstream. If the cell garage doors stay closed, that sugar gets stuck on the highway, leading to sluggishness and energy dips. Corosolic acid acts like a master garage door opener through three distinct cellular pathways:
1. Opening the Cell Doors (GLUT4 Translocation)
Inside your muscle and fat cells are specialized transport proteins called GLUT4. In laboratory and clinical studies, corosolic acid prompts these GLUT4 transport vehicles to move directly from the interior of the cell up to the outer cell surface [1, 4]. Once at the surface, these transporters open up, allowing glucose to flow rapidly out of your bloodstream and into the cell to be used for instant muscle fuel [2, 4].
2. Activating Insulin Receptor Kinases Without Overworking the Pancreas
Normally, your pancreas must produce large amounts of insulin to tell your cells to absorb glucose. Corosolic acid possesses unique "insulin-mimetic" properties: it stimulates the phosphorylation of insulin receptor beta-subunits and activates intracellular enzyme cascades without demanding excess hormone production from your pancreas [2, 3]. This helps support your natural insulin sensitivity over time [1, 3].
3. Regulating Liver Sugar Production (Gluconeogenesis Inhibition)
Your liver naturally releases stored sugar into your blood between meals using an enzyme called glucose-6-phosphatase. Biochemical research demonstrates that corosolic acid helps regulate this liver enzyme, preventing the liver from dumping unwanted sugar into your bloodstream while you are resting or fasting [2, 4].
Dosing, Timing & Nutritional Synergy Protocol
Optimal Timing & Meal Pairing: Take one (1) softgel daily with an 8-ounce glass of water, preferably with or immediately following a meal that contains dietary carbohydrates and fats [1, 3]. Because corosolic acid is a fat-soluble botanical molecule, the natural lipids in your food—alongside the rice bran oil inside the softgel—trigger bile flow and optimize lymphatic transport across your intestinal barrier [2].
Daily Schedule & Split-Dosing Strategy
Take your softgel alongside your largest, most starch-dense meal of the day (such as breakfast or dinner). This ensures active corosolic acid is circulating in your digestive tract when cellular glucose uptake is needed most [3]. If you and your physician decide to use two softgels daily, split them evenly: take one softgel with breakfast and one softgel with dinner to maintain steady plasma levels across the entire day [1].
Smart Synergies & Spacing Guidelines
✓Chromium & Cinnamon Synergy: GlucoFit® pairs exceptionally well with trace minerals like Chromium Chelate and whole Cinnamon Bark, which reinforce complementary insulin signaling pathways.
✓Alpha-Lipoic Acid (ALA): Pairing with ALA provides intracellular antioxidant defense and supports healthy nerve function in peripheral tissues.
✗Medication Spacing: Because GlucoFit® promotes natural glucose clearance, individuals taking prescription diabetes medications (such as insulin, metformin, or sulfonylureas) should consult their doctor and maintain careful blood sugar tracking to prevent unexpected hypoglycemic drops [1, 3].
Timeline of What to Expect
Week 1 (Initial Acclimation): Active corosolic acid enters your digestive tract cleanly with zero stomach irritation. Cellular uptake pathways begin responding to post-meal food intake [1].
Months 2–3+ (Cumulative Metabolic Support): Sustained daily use helps maintain healthy baseline glucose levels, optimizes carbohydrate tolerance, and supports long-term metabolic health [1, 2].
Physical Profile & Clean Excipient Breakdown
Delivery Format & Swallowability: NOW® GlucoFit® is delivered in a miniature, smooth oval softgel. Measuring roughly one-third of an inch in length, it is one of the smallest and easiest supplements to swallow on the market. It glides down effortlessly with a single sip of water, eliminating the throat discomfort and gag reflex often caused by dry, bulky herbal tablets.
Natural Aroma, Taste & Color
Because the active banaba extract is hermetically sealed inside an airtight softgel shell, there is absolutely zero bitter herbal taste or unpleasant odor. The softgel features a deep, natural dark color derived from carob extract and zinc oxide (ZnO), which serve as a natural protective light barrier to preserve delicate corosolic acid from UV degradation. Natural batch-to-batch color variations are completely normal.
Other Ingredients Demystified
Bovine Gelatin (BSE-Free): Forms the protective outer softgel shell, sourced exclusively from certified healthy, disease-free cattle herds.
Glycerin & Water: Food-grade plant glycerin and purified water keep the gelatin shell pliable, soft, and easy to break down in your stomach.
Carob Extract: A natural, roasted Mediterranean pod extract used to create a dark tint that shields the active ingredients from light damage.
Zinc Oxide: A natural mineral compound used to provide shell opacity and maintain softgel structural stability.
Rice Bran Oil: A healthy, gentle carrier oil that dissolves the fat-soluble corosolic acid, ensuring maximum cellular absorption [2].
Beeswax & Silicon Dioxide: Natural suspension agents that keep the botanical extract evenly distributed inside every softgel for uniform dosing.
Packaging & Environmental Responsibility: Bottled in a 100% Post-Consumer Recycled (PCR) resin container, helping reduce plastic waste. Store tightly closed in a cool, dry pantry away from excessive heat and direct sunlight.
The dietary supplement marketplace is flooded with cheap, unverified products. Independent testing investigations regularly reveal that generic and discount "big box store" brands frequently fail to meet basic label claims, cut active herbs with low-grade fillers, or contain hazardous levels of toxic heavy metals. NOW® Foods operates over 40,000 square feet of private, state-of-the-art analytical chemistry and microbiology testing laboratories accredited under ISO/IEC 17025:2017—conducting more than 16,000 to 19,000 analytical tests every single month.
How NOW® Protects You from Big Box Store Contaminants:
✓ ICP-MS Heavy Metal Detection (Parts-Per-Billion Precision): Plants absorb elements straight from agricultural soil. NOW tests raw banaba shipments and finished softgels using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to detect trace elemental toxins—including lead, arsenic, cadmium, and mercury—down to parts-per-billion (ppb). Finished lots conform to safety standards that beat California Proposition 65 and USP thresholds.
✓ HPLC & UHPLC Active Potency Fingerprinting: Utilizing High-Performance Liquid Chromatography (HPLC), NOW chemists verify the precise molecular "fingerprint" of corosolic acid, guaranteeing that every single softgel delivers the promised 18% standardization without synthetic chemical spiking.
✓ GC-MS/MS & LC-MS/MS Pesticide Screening: Botanical crops are screened with tandem gas chromatography-mass spectrometry against an extensive panel of more than 500 agricultural pesticides, fungicides, and chemical solvents to ensure total agricultural purity.
✓ Full Microbiological Pathogen Safety: State-of-the-art automated PCR assays ensure zero contamination from pathogenic bacteria, including Salmonella spp., Escherichia coli, and Staphylococcus aureus, alongside strict limits on yeasts and molds.
✓ cGMP "A-Rated" Facility Certification: Manufactured in facilities awarded top "A-level" Current Good Manufacturing Practice certifications by the Natural Products Association (NPA) and audited by UL Solutions.
When you choose NOW® through VitaNet®, you never have to gamble on cheap, contaminated big box store supplements. You receive pure, authentic, laboratory-verified corosolic acid.
Other Ingredients: Softgel Capsule [bovine gelatin (BSE-free), glycerin, water, carob extract, zinc oxide], Rice Bran Oil, Beeswax and Silicon Dioxide.
Allergen Specifications: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut, or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Product Cautions: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition (including diabetes or low blood sugar). Keep out of reach of children.
Curator's Quality Note & Store Heritage: VitaNet®, LLC
Founded in 1995, VitaNet®, LLC has delivered more than 31 years of dedicated natural health curation and nutritional biochemistry expertise. Headquartered in Hartville, Ohio, our family-owned business bypasses unauthorized online brokers by sourcing inventory directly from certified manufacturing hubs. Every bottle is stored in our climate-regulated, humidity-controlled warehouse facility. We stand firmly behind every product with an unconditional 100% money-back guarantee—even on opened bottles, with return shipping covered. Have questions? Call our retail team directly at (330) 877-8786 or toll-free at 1-800-877-8702.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. GlucoFit® is a registered trademark of Soft Gel Technologies, Inc.
How does GlucoFit® 18% Corosolic Acid compare to standard raw banaba leaf powder?
Standard banaba leaf powders contain unstandardized, trace amounts of corosolic acid (typically 1% or less), requiring you to take several large pills to obtain an active botanical dose. GlucoFit® is standardized to guarantee a minimum 18% concentration of pure corosolic acid. Dissolved in pure rice bran oil within a tiny softgel, it offers vastly superior intestinal bioavailability with a fraction of the physical pill size [1, 2].
Can I take GlucoFit® if I am fasting or following a ketogenic diet?
Yes. Each tiny softgel contains less than 1 single calorie, zero carbohydrates, and zero sugars, meaning it will not break a metabolic fast or trigger an insulin spike. However, because its active corosolic acid works primarily by encouraging muscle cells to absorb dietary glucose, most individuals experience maximum benefit when taking it right before or with their first substantial meal of the day [1, 3].
How small is the GlucoFit® softgel, and is it easy to swallow?
The softgel is exceptionally small—roughly one-third of an inch long. It is significantly smaller than a standard multivitamin or fish oil softgel. Its smooth bovine gelatin shell glides down effortlessly with water, making it ideal for anyone who has difficulty swallowing pills.
Can I take NOW® GlucoFit® alongside prescription blood sugar medications?
You must consult your prescribing physician before combining GlucoFit® with prescription anti-diabetic medications (such as metformin, glipizide, or insulin). Because corosolic acid supports glucose clearance into muscle tissue, combining it with medical drugs may cause blood sugar levels to drop lower than intended [1, 3].
What makes NOW® Foods GlucoFit® safer than discount big box store brands?
NOW tests every incoming batch of raw materials using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and High-Performance Liquid Chromatography (HPLC) in ISO/IEC 17025 accredited laboratories. Every lot is screened for trace heavy metals (lead, cadmium, arsenic, mercury) down to parts-per-billion and verified clean from over 500 agricultural pesticides—ensuring you receive a pure, potent botanical free from the contaminants commonly found in unvetted budget brands.
Scientific References:
Judy, W. V., Hari, S. P., Stogsdill, W. W., Judy, J. S., Naguib, Y. M., & Passwater, R. (2003). Antidiabetic activity of a standardized extract (Glucosol™) from Lagerstroemia speciosa leaves in Type II diabetics. A dose-dependence study. Journal of Herbal Pharmacotherapy, 3(4), 1–13.
Miura, T., Takagi, S., & Ishida, T. (2012). Management of Diabetes and Its Complications with Banaba (Lagerstroemia speciosa L.) and Corosolic Acid. Evidence-Based Complementary and Alternative Medicine, 2012, 871495.
Fukushima, M., Matsuyama, F., Ueda, N., Egawa, K., Takemoto, J., Kajimoto, Y., Yonaha, N., Miura, T., Kaneko, T., Nishi, Y., Mitsunaga, R., Sano, M., Hirota, N., & Oku, J. (2006). Effect of corosolic acid on postprandial glucose levels in humans. Diabetes Research and Clinical Practice, 73(2), 174–177.
Liu, F., Kim, J. K., Li, Y., Liu, X. Q., Li, J., & Chen, X. (2001). An extract of Lagerstroemia speciosa L. has insulin-like glucose uptake-stimulatory and adipocyte differentiation-inhibitory activities in 3T3-L1 cells. The Journal of Nutrition, 131(9), 2242–2247.
