- *MSRP:
$19.99- Our Price:
- $12.00
- Buy: at $12.00
- UPC: 733739032485
- # N3248
NOW Grape Seed Extract 100 mg – 100 Veg Capsules
NOW® Grape Seed Extract 100 mg delivers concentrated plant antioxidants from genuine red grape seeds (Vitis vinifera) combined with 320 mg of Vitamin C. Standardized to deliver at least 90% total polyphenols, this clean formula supports your blood vessel walls, capillary strength, and daily immune defense. Each vegetarian capsule gives your body long-lasting antioxidant protection to keep blood flowing smoothly and tissues feeling resilient.
Quick Specs Snapshot
- ✓ Active Form & Potency: 100 mg Grape Seed Extract standardized to a minimum of 90% Total Polyphenols, plus 320 mg Vitamin C (356% Daily Value) and 36 mg Calcium per single veg capsule.
- ✓ Primary Cellular Target: Vein walls, micro-capillaries, collagen fibers, and vascular endothelial cells that regulate circulation.
- ✓ Supply & Value Math: 100 vegetarian capsules per bottle (a full 100-day supply at 1 capsule daily or 50 days at 2 capsules daily), costing just pennies per serving.
- ✓ Formulation Purity: 100% vegetarian capsule; non-GMO; free from gluten, wheat, soy, milk, egg, fish, shellfish, tree nuts, and sesame; bottled in 100% post-consumer recycled (PCR) resin.
Buyer’s Guide: Standardized Polyphenols vs. Cheaper Alternatives
Why the Form Matters
Many bargain brands sold at discount retail stores use cheap, unstandardized grape waste left over from winemaking. Those raw powders usually supply only 5% to 10% active compounds, meaning you are mostly paying for indigestible plant fiber that passes straight through your system [1]. NOW uses a premium botanical extraction process standardized to deliver a guaranteed minimum of 90% total polyphenols, which are rich in oligomeric proanthocyanidins (OPCs) [1, 3]. Paired with 320 mg of Vitamin C and Ascorbyl Palmitate, this formula protects both the water-based inside of cells and their outer fatty shields, offering far greater cellular absorption than bargain products [2, 4].
Is This Formula Right for You?
- ✓ Leg Vein & Healthy Circulation Support: Ideal for anyone seeking to support strong vein walls, smooth blood flow, and comfortable legs after long hours of sitting or standing [3, 5].
- ✓ Dual Antioxidant & Immune Defense: Great for shoppers looking for everyday immune resilience powered by high-potency Vitamin C and botanical bioflavonoids [1, 4].
- ✓ Skin & Collagen Integrity: Excellent for individuals wanting to protect the structural proteins that keep skin and tissue elastic and firm [1, 3].
- ✗ You are taking prescription blood thinners: Grape seed extract naturally supports smooth circulation; speak with your physician before combining with blood-thinning medication [3, 5].
- ✗ You have an allergy to grapes: This pure supplement is extracted from real Vitis vinifera seeds and should not be used by individuals allergic to grapes.
- ✗ You are pregnant or nursing: Concentrated botanical extracts should only be used by expecting or nursing mothers under the guidance of an obstetrician.
Risk-Free Assurance: Every purchase is backed by VitaNet®, LLC’s unconditional 100% money-back guarantee—even on opened bottles, with return shipping covered—so you can evaluate digestive comfort and personal fit risk-free.
How It Works: Cellular Pathways & Vascular Defense
Every minute of the day, your body produces energy to keep you moving, thinking, and breathing. Just like a car engine produces exhaust fumes while burning fuel, your cells produce tiny, unstable molecules called free radicals (such as superoxide O2•− and hydroxyl radicals •OH) [1, 2]. These free radicals are missing an electron. To fix themselves, they steal electrons from your healthy cell membranes and proteins. This process is called oxidation—the exact same chemical reaction that causes a sliced apple to turn brown or iron to rust [1, 2].
Grape seed extract contains active nutrients called Oligomeric Proanthocyanidins (OPCs). OPCs work like microscopic fire blankets [1]. Because of their unique chemical shape, OPCs can safely donate electrons to neutralize dangerous free radicals without becoming harmful themselves [1, 2]. Scientific research shows that grape seed OPCs demonstrate significantly higher antioxidant activity than Vitamin E or Vitamin C on their own [1].
Protecting Your Blood Vessel “Garden Hoses”
Think of your blood vessels as flexible garden hoses. Their inner walls are lined with a delicate layer of cells that produce a messenger molecule called nitric oxide (NO) [3, 5]. Nitric oxide signals blood vessel walls to relax and widen so blood can flow smoothly and deliver oxygen to your organs [3, 5]. Free radicals quickly break down nitric oxide, making vessels stiff. Grape seed polyphenols protect nitric oxide from free radical damage, supporting natural vascular elasticity and comfortable blood flow throughout your body [3, 5].
Guarding Collagen & Elastin Scaffolding
Your veins, capillaries, and skin rely on two main structural proteins: collagen (which acts like strong steel beams) and elastin (which acts like springy rubber bands) [3]. Normal wear and tear triggers enzymes called collagenase and elastase, which slowly break these fibers down. Grape seed OPCs bind directly to collagen and elastin fibers, creating a protective shield that helps veins and skin stay firm and resilient [1, 3].
The Vitamin C Recycling System
NOW includes 320 mg of Vitamin C (ascorbic acid, C6H8O6) in every capsule. When Vitamin C stops a free radical, it becomes oxidized and tired [2, 4]. Grape seed polyphenols donate an electron back to the spent Vitamin C, restoring it so it can keep protecting immune cells and building new collagen all day long [2, 4].
Daily Dosing, Timing & Synergy Protocol
Optimal Timing & Meal Pairing
Take 1 veg capsule 1 to 2 times daily. While grape seed polyphenols and Vitamin C are water-soluble, taking your capsule with food is the best choice [1, 4]. Grape seeds naturally contain plant tannins that can cause mild stomach warmth if taken on an empty stomach. Taking your capsule with breakfast or lunch ensures easy digestion and smooth absorption into your bloodstream [1, 4].
Circadian & Split-Dosing Strategy
For general health maintenance, 1 capsule in the morning provides steady daytime antioxidant defense. If you choose to take 2 capsules daily for added circulatory or capillary support, take 1 capsule with breakfast and 1 capsule with dinner. Splitting your doses keeps blood levels of polyphenols and Vitamin C steady throughout the entire 24-hour day [3].
Smart Synergies & Spacing Rules
- ✓ Flavonoid Teamwork (Citrus Bioflavonoids & Rutin): Grape seed OPCs pair naturally with citrus bioflavonoids to support micro-capillary walls in your eyes and lower legs.
- ✓ Cardiovascular Synergy (Coenzyme Q10): While grape seed extract strengthens blood vessel tone, CoQ10 supplies clean energy to heart muscle cells.
- ✗ The 2-Hour Iron Spacing Rule: Plant polyphenols bind to non-heme iron (the iron in plant foods or multivitamin pills) in your stomach, reducing iron absorption. Take your grape seed capsule at least 2 hours apart from high-dose iron supplements.
Timeline of Expectations
- ✓ Week 1: Rapid absorption of polyphenols and Vitamin C elevates circulating antioxidant activity to neutralize daily oxidative stress [2, 4].
- ✓ Weeks 3–4: Nutrients accumulate in vascular tissues, supporting micro-capillary strength and promoting leg vein comfort [3, 5].
- ✓ Months 2–3+: Long-term protection of collagen scaffolding in veins and skin; sustained support for nitric oxide signaling and vascular flexibility [1, 3, 5].
Capsule Size, Natural Sensory Profile & Excipients
Delivery Format & Swallowability
NOW Grape Seed Extract comes in a standard Size 1 two-piece vegetarian capsule. It measures under three-quarters of an inch in length. Unlike hard, chalky tablets that can feel rough going down, this slick vegetable cellulose shell glides easily down the throat with a sip of water and dissolves quickly in your stomach.
Natural Aroma, Taste & Color Notes
Each clear vegetarian capsule contains a fine, reddish-brown to deep purple powder. Because NOW uses real botanical extracts without artificial dyes or bleaching agents, small differences in color between harvest batches are completely natural. It has a mild, earthy scent of dried grape skins with a slightly tart botanical finish.
Other Ingredients Demystified
- Hypromellose (cellulose capsule): A clean, 100% vegetarian capsule made from natural plant wood pulp that dissolves rapidly in stomach acid.
- Microcrystalline Cellulose: A harmless, plant-derived dietary fiber used as an inert filler so every capsule contains the exact same milligram measurement.
- Ascorbyl Palmitate: A fat-soluble form of Vitamin C that protects the botanical powder from oxygen breakdown during encapsulation while helping the powder flow smoothly into capsules.
Storage & Eco-Friendly Packaging
Keep your bottle tightly closed in a cool, dry pantry or cupboard after opening. Avoid storing supplements in humid bathrooms or next to hot cooking appliances. Every bottle is crafted from 100% post-consumer recycled (PCR) resin, protecting the contents from UV light degradation while reducing environmental plastic waste.
Supplement Facts & Laboratory Testing Standards
| Supplement Facts | ||
|---|---|---|
| Serving Size: 1 Veg Capsule | Servings Per Container: 100 | ||
| Description | Amount per Serving | % Daily Value |
| Vitamin C (as Ascorbic Acid) | 320 mg | 356% |
| Calcium (from Calcium Carbonate) | 36 mg | 3% |
|
Grape Seed Extract (Vitis vinifera) (min. 90% Total Polyphenols) |
100 mg | † |
† Daily Value not established.
Other Ingredients: Hypromellose (cellulose capsule), Microcrystalline Cellulose and Ascorbyl Palmitate.
Allergen Free: 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 Notes: Natural color variation may occur in this product. Made and quality tested in the USA with globally sourced ingredients. Store in a cool, dry place after opening. Family and employee owned. This bottle is made from 100% PCR (post-consumer recycled) resin.
NOW In-House Testing vs. Big-Box Store Brands
Many discount supplements sold at mass retail chains and big-box store shelves are private-label bottles purchased from low-cost overseas brokers. These discount brands rarely own testing laboratories and often skip testing finished batches. Independent market testing reveals that bargain botanicals frequently test positive for heavy metals, agricultural pesticides, or contain less than 10% of the active polyphenols claimed on the label. In contrast, NOW operates over 40,000 square feet of in-house testing laboratories accredited to ISO/IEC 17025:2017, performing more than 19,000 separate tests each month to guarantee absolute safety and verified potency:
- ✓ Heavy Metal Screening (ICP-MS): Using Inductively Coupled Plasma Mass Spectrometry, every single production lot is tested down to parts-per-billion (ppb) concentrations for lead, arsenic, cadmium, and mercury to ensure strict California Proposition 65 compliance.
- ✓ Polyphenol Potency Verification (HPLC): High-Performance Liquid Chromatography tests confirm every capsule meets the minimum 90% polyphenol standard, guaranteeing you never receive weak plant filler.
- ✓ Pesticide & Solvent Screening (GC-MS/MS): Advanced Gas Chromatography–Tandem Mass Spectrometry screens incoming botanical ingredients against hundreds of harmful agricultural sprays and chemical extraction residues.
- ✓ Microbiological Pathogen Clearance: Strict culture and DNA tests confirm zero presence of hazardous organisms including Salmonella spp., Escherichia coli, and Staphylococcus aureus, alongside strict limits for molds and yeasts.
Curator’s Quality Assurance Note
Curated by the VitaNet®, LLC Nutritional Biochemistry Team. Founded in 1995 with roots in Hartville, Ohio, VitaNet®, LLC brings over 31 years of hands-on supplement curation and human biochemistry expertise directly to your doorstep. We source exclusively through authorized manufacturer distribution channels and warehouse all inventory in climate-controlled facilities. As an independent, BBB A+ accredited American business, we back every bottle with an unconditional 100% money-back guarantee, including return shipping costs.
*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.
Frequently Asked Questions
What makes standardized 90% grape seed extract better than eating red grapes or drinking grape juice?
Whole table grapes and bottled grape juices contain small amounts of polyphenols, but the vast majority are locked inside the crunchy seeds that most people spit out or cannot digest. Furthermore, commercial grape juice contains high amounts of simple fruit sugars that can cause rapid spikes in blood sugar. One single NOW vegetarian capsule delivers 100 mg of concentrated extract (providing at least 90 mg of pure polyphenols) plus 320 mg of Vitamin C, with zero sugar, zero calories, and zero alcohol.
Can I open the capsule and mix the powder into a smoothie or water?
Yes. If you prefer not to swallow capsules, you can gently twist open the vegetarian capsule and stir the fine powder into a small glass of water, unsweetened applesauce, or a smoothie. Keep in mind that concentrated grape seed polyphenols contain natural tannins, which have a tart, astringent flavor. Mixing the powder into a fruit smoothie or berry yogurt completely masks this natural tartness.