NOW C-1000 CAPS (250 Veg Capsules): High-Potency Vitamin C with Bioflavonoid Synergy
If you are looking for an everyday immune defense supplement that does more than standard ascorbic acid, NOW Foods C-1000 CAPS (Product Code #N0692, UPC: 733739006929) combines a full 1,000 mg of Vitamin C with 100 mg of natural Citrus Bioflavonoids and 25 mg of Rutin. This specialized combination reflects how vitamin C appears in fresh, whole fruit, helping your body absorb, protect, and utilize every milligram efficiently.
Serving Size1 Veg Capsule
Supply Length250 Days (Over 8 Months)
Key Synergists100mg Bioflavonoids + Rutin
Quality StandardISO 17025 Lab Tested
Why Add Citrus Bioflavonoids & Rutin? The Synergy Explained
Many low-cost vitamin C supplements contain only isolated ascorbic acid. While ascorbic acid is effective, in nature—such as in an orange peel, lemon pulp, or rose hips—vitamin C never exists alone. It is always bundled with plant pigments called bioflavonoids.
Think of bioflavonoids as a personal protective shield for vitamin C. When ascorbic acid enters your bloodstream, it can break down rapidly if exposed to metabolic stress. Citrus bioflavonoids and Rutin (extracted from Sophora japonica flower buds) act as natural antioxidants that prevent premature oxidation of the vitamin C molecule, allowing your cells more time to put it to work (Vinson & Bose, 1988).
How This Botanical Trio Works Together:
1,000 mg Ascorbic Acid: Supplies your white blood cells, skin collagen fibers, and adrenal glands with primary antioxidant fuel.
100 mg Citrus Bioflavonoid Complex: Protects ascorbic acid from premature oxidation and enhances cellular uptake.
25 mg Rutin Powder: A bioflavonoid known to support blood vessel elasticity and capillary wall strength (Ganeshpurkar & Saluja, 2017).
Clinically Researched Health Benefits
Because human beings lack the enzyme (L-gulonolactone oxidase) required to synthesize vitamin C internally, we must obtain 100% of our supply from diet and supplementation. Peer-reviewed research confirms three core physiological roles for daily vitamin C intake:
Vitamin C concentrates inside your white blood cells (neutrophils and phagocytes) at levels up to 100 times higher than in plasma. When exposed to an immune challenge, these cells consume vitamin C rapidly to neutralize microbial threats and prevent self-inflicted oxidative damage (Carr & Maggini, 2017). In large-scale systematic reviews, routine supplementation with 1,000 mg of vitamin C significantly reduced the duration of seasonal respiratory symptoms by 8% in adults and up to 14% in children (Hemilä & Chalker, 2013).
2. Structural Collagen Synthesis for Skin, Bones & Joints
Collagen is the primary protein that keeps your skin firm, your blood vessels elastic, and your joint cartilage cushioned. Vitamin C is the required cofactor for the enzymes prolyl hydroxylase and lysyl hydroxylase, which chemically link collagen fibers together. Without sufficient vitamin C, your body simply cannot produce stable, strong collagen (Pullar et al., 2017).
3. Whole-Body Free Radical Protection
Everyday factors like metabolic turnover, stress, sunlight, and air pollutants generate free radicals—unstable molecules that damage healthy cells. As a water-soluble antioxidant, vitamin C neutralizes these reactive molecules in body fluids and regenerates oxidized vitamin E back into its active antioxidant form.
NOW Foods Quality Verification: ISO 17025 Testing & Contaminant Controls
Not all vitamin supplements are manufactured with the same standards. In an unverified supplement market, raw botanical powders and ascorbic acid can be contaminated with environmental heavy metals or agricultural chemicals. NOW Foods sets an industry benchmark for safety, operating certified manufacturing facilities in Bloomingdale, Illinois:
Testing Dimension
NOW Analytical Protocol
Consumer Safety Standard
Laboratory Accreditation
ISO/IEC 17025:2017 Certified Labs
Conducted by over 160 QA/QC scientists performing 37,000+ tests every month.
Heavy Metal Screening
Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
Tests for Lead, Arsenic, Cadmium, and Mercury down to parts-per-billion (ppb) to meet strict USP and California Prop 65 limits.
Pesticide & Solvent Purity
GC-MS & LC-MS/MS Chromatography
Screens botanical bioflavonoids against 200+ agricultural pesticides, herbicides, and residual extraction solvents.
Microbial Verification
Automated Microbial Identification & PCR
Ensures zero contamination from Salmonella, E. coli, Staphylococcus, yeast, or molds.
GMP Facility Audits
UL Certified & NPA A-Rated cGMP
Full compliance with FDA 21 CFR Part 111 regulations from raw batch intake to finished sealed bottle.
✓ Sustainable Packaging: This 250-capsule bottle is made from 100% post-consumer recycled (PCR) resin to reduce environmental footprint.
Complete Ingredient Profile & Supplement Facts
Verified against manufacturer product specifications for NOW Item #0692:
Supplement Facts
Serving Size: 1 Veg Capsule Servings Per Container: 250
Description
Amount Per Serving
% Daily Value
Vitamin C (as Ascorbic Acid)
1 g (1,000 mg)
1,111%
Citrus Bioflavonoid Complex
100 mg
†
Rutin Powder (Sophora japonica) (Flower Bud)
25 mg
†
† Daily Value (DV) not established.
Other Ingredients: Hypromellose (cellulose capsule), Stearic Acid (vegetable source), Magnesium Stearate (vegetable source), and Silicon Dioxide.
Allergen Free & Dietary Credentials: 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.
Supplement labels provide simple instructions, but understanding your body's digestion will give you much better results:
The Label Says: Take 1 capsule daily.
Practical Insight: Always take this capsule with a meal and a full 8-ounce glass of water. Because ascorbic acid is naturally mildly acidic, taking it on an empty stomach may cause mild stomach rumbling in sensitive individuals. Taking it with food buffers the acidity and slows digestion, improving your gut's absorption efficiency.
Bonus Synergy: Boost Iron Absorption
If you take plant-based non-heme iron (such as iron from spinach, beans, or an iron supplement), pairing it with this vitamin C capsule helps convert iron into an easily absorbable form in your small intestine.
Storage Instructions:
Vitamin C is sensitive to light, excessive heat, and moisture. Store your bottle tightly closed in a cool, dry pantry or cupboard. Avoid keeping your vitamins on bathroom counters or right beside your kitchen stove where humidity is high.
Safety, Interactions & Precautions
Vitamin C has an exceptional safety record because it is water-soluble; any excess your body does not need is gently eliminated in your urine. However, honest health guidance requires looking at potential contraindications and upper limits:
Tolerable Upper Limit (UL): The National Academy of Medicine establishes the Upper Tolerable Intake Level for adults at 2,000 mg per day. Taking more than 2,000 mg daily can cause an osmotic laxative effect, resulting in loose stools or temporary abdominal cramps (Institute of Medicine, 2000).
Kidney Stone History: The body metabolizes a small portion of ascorbic acid into oxalate. If you have a personal history of calcium oxalate kidney stones or chronic kidney disease, consult your nephrologist or physician before taking high-dose vitamin C.
Iron Storage Conditions (Hemochromatosis): Because vitamin C strongly enhances dietary iron absorption, individuals diagnosed with hemochromatosis should monitor their vitamin C intake under clinical supervision.
Medication Timing: High-dose antioxidants may interact with specific prescription medications, including blood-thinning therapies (warfarin) and certain statin regimens. Talk to your healthcare provider or pharmacist before introducing new dietary supplements into your regimen.
*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.
Why Purchase from VitaNet®, LLC? Over 31 Years of Family-Owned Trust
When you order nutritional supplements online, the seller matters just as much as the brand. Unauthorized third-party storefronts and automated marketplaces often leave inventory sitting in hot, unmonitored shipping depots, which can degrade sensitive nutrients like bioflavonoids and vitamin C.
Founded in 1995 as an independent, family-owned retailer in Hartville, Ohio, VitaNet®, LLC brings over 31 years of direct natural product experience to every package we ship[cite: 1].
The VitaNet® Assurance:
100% Unconditional Money-Back Guarantee: We offer a 12-month return policy and even pay the return shipping costs for a full 100% refund of the purchase price—whether the bottle is opened or unopened[cite: 1].
Direct Manufacturer Sourcing: We source authentic NOW Foods products directly to guarantee fresh lot expiration dates and climate-controlled storage[cite: 1].
Real People, Real Support: Reach our team directly by phone at (330) 877-8786 or toll-free at 1-800-877-8702[cite: 1].
A+ Rated Better Business Bureau Member: Transparent business operations with our physical headquarters located at 887 Edison Street NW, Hartville, OH 44632[cite: 1].
Frequently Asked Questions (FAQ)
How does NOW C-1000 CAPS differ from regular ascorbic acid tablets?
Regular vitamin C tablets typically provide plain ascorbic acid compressed with binders. NOW C-1000 CAPS comes in an easy-to-digest vegetarian capsule and includes 100 mg of Citrus Bioflavonoids plus 25 mg of Rutin. These botanical antioxidants help protect vitamin C from breaking down prematurely, mirroring how vitamin C is found in natural citrus fruits.
Is this product gentle on the stomach, or should I choose Buffered C?
Because this formula contains pure ascorbic acid, it has a mildly acidic pH. Most people tolerate it well when taken with food. However, if you have a sensitive stomach, frequent acid reflux, or ulcers, you might prefer NOW's Buffered C-1000 Complex, which binds ascorbic acid with calcium ascorbate to neutralize its natural acidity.
What are the strict contaminant testing standards used by NOW Foods?
NOW Foods operates ISO/IEC 17025:2017 accredited analytical and microbiology laboratories staffed by more than 160 scientists. Every ingredient batch is tested using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) for heavy metals (lead, arsenic, cadmium, mercury) down to parts-per-billion, while chromatography instruments screen for over 200 pesticides and solvents.
Is NOW C-1000 CAPS suitable for vegans and individuals with common food allergies?
Yes. The capsule is made from hypromellose (vegetable cellulose), making it 100% vegetarian and vegan friendly. It is formulated without wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, or sesame, and is verified Non-GMO, Halal, and Kosher.
What is VitaNet's return policy if this supplement doesn't suit me?
VitaNet®, LLC offers an unconditional 100% money-back guarantee for 12 months from purchase[cite: 1]. If you are not satisfied, VitaNet even covers the return shipping costs, whether the bottle is opened or unopened, for a full refund[cite: 1].
