Two-Stage Timed-Release Vitamin C with Citrus Bioflavonoids & Stomach-Friendly Mineral Buffering Base
✓ Gentle on Sensitive StomachsBuffered with calcium carbonate and magnesium oxide to neutralize acid.
✓ 24-Hour Sustained SupportTwo-stage release keeps vitamin C levels steady in your bloodstream all day.
✓ Natural Bioflavonoid ComplexIncludes lemon bioflavonoids, rutin, hesperidin, and citrus pectin for higher absorption.
✓ 100% Vegan VegCapsLab-tested for heavy metals, purity, and potency at Solaray's state-of-the-art facility.
The Benefits of Solaray Super Bio C - Buffered
Did you know that Vitamin C is not only an important nutrient for your overall health, but it also provides antioxidant activity? This product is designed to release half of the Vitamin C rapidly and the other half gradually over a period of up to 12 hours. By taking one capsule in the morning and another 12 hours later, you can extend the availability of Vitamin C to your body over a 24-hour period.
Some of the benefits of this product include support for normal, healthy collagen synthesis, cartilage and bone development, immune function, capillary and blood vessel integrity, and nerve impulse transmission. In addition, this product contains Calcium Carbonate and Magnesium Oxide to buffer the natural acidity of Vitamin C.
If you have ever felt heartburn, cramping, or nausea from plain ascorbic acid, you are not alone. Standard vitamin C is naturally acidic, which can irritate sensitive digestive tracts. Solaray Super Bio C - Buffered solves this problem by pairing 1,000 mg of high-grade vitamin C with gentle alkalizing minerals and natural citrus plant pigments, giving you round-the-clock defense that stays gentle on your tummy.
Why Timed Release Matters: Solving the Vitamin C "Spike and Drop"
Vitamin C is water-soluble. Your body cannot manufacture it, nor can it store large surplus pools for future days. When you swallow a standard 1,000 mg vitamin C tablet all at once, your body experiences a rapid spike in blood levels. Because your digestive transporters can only handle so much at a time, your kidneys quickly filter the excess out through your urine within two to four hours.
This rapid surge means that after lunch, your cells may be starved of the antioxidants they need to handle afternoon stress, environmental pollutants, and physical fatigue. Solaray solves this with its two-stage timed delivery system, ensuring your white blood cells and skin tissue get an even, continuous stream of vitamin C throughout the day.
How Solaray's Two-Stage Release Works for 24-Hour Coverage
Solaray engineered this formula using a smart dual-action vegetable matrix that dissolves in two synchronized stages:
Stage 1: Fast-Acting Defense (First 500 mg)
Half of the capsule releases immediately in your stomach. This quickly restores your blood antioxidant levels, helping neutralize daily oxidative stress from sun exposure, emotional stress, and daily environmental pollutants.
Stage 2: Gradual 12-Hour Drip (Second 500 mg)
The second half of the vitamin C is bound within a gentle plant-cellulose matrix that breaks down slowly over up to 12 hours. This drip-feeds vitamin C into your bloodstream steadily without overwhelming your system.
✓ Simple Daily Routine: Take 1 VegCap with breakfast and 1 VegCap with dinner (or 2 VegCaps together as directed) to enjoy continuous 24-hour immune and cellular protection.
The Buffering Advantage: Gentle on Stomach Acid & Reflux
Ascorbic acid has a low pH of about 2.5, making it almost as acidic as pure lemon juice or vinegar. Taking 1,000 mg of unbuffered ascorbic acid can irritate the delicate lining of your stomach, causing acid reflux, burning sensations, or loose stools.
To make this formula comfortable for everyone, Solaray blends in a specialized Buffering Base of natural Calcium Carbonate and Magnesium Oxide:
✓ Acid Neutralization: The alkaline minerals act like tiny shock absorbers, buffering the acid before it can trigger heartburn or stomach upset.
✓ Bonus Minerals: Calcium and magnesium are essential minerals your body needs to maintain strong bones, healthy teeth, smooth muscle contractions, and steady nerve signals.
✓ Safe for Sensitive Diets: Gentle enough for individuals recovering from seasonal illness or those who need high-dose vitamin C but cannot handle traditional sour tablets.
Why Bioflavonoids, Rutin, Hesperidin & Citrus Pectin Make It Work Better
In nature, vitamin C does not exist as an isolated white powder. When you eat an orange or acerola cherry, the vitamin C is surrounded by colorful plant compounds called bioflavonoids. Solaray replicates nature's blueprint by adding 730 mg of active fruit extracts:
Lemon Bioflavonoids (500 mg)
These natural fruit antioxidants shield vitamin C molecules from breakdown in your gut, helping your body absorb and hold onto vitamin C longer.
Rutin Concentrate (100 mg)
Extracted from botanical flowers, rutin strengthens fragile micro-capillaries and veins, helping prevent easy bruising and bleeding gums.
Hesperidin Concentrate (100 mg)
A powerful citrus polyphenol that supports smooth blood circulation, healthy vascular elasticity, and a balanced inflammatory response.
Citrus Pectin (30 mg)
A soothing plant fiber that supports gut health and helps regulate smooth, steady nutrient uptake into your bloodstream.
Everyday Health Benefits: How Super Bio C Supports Your Body
1. Strong, Responsive Immune Defense
Your white blood cells need vitamin C like an engine needs fuel. When seasonal bugs strike, your immune cells consume vitamin C rapidly to fight off invaders. Taking regular buffered vitamin C keeps your cellular defenses charged so your immune response stays prompt and resilient.
2. Collagen Production for Youthful Skin & Pain-Free Joints
Collagen is the physical glue that keeps your skin firm, your tendons springy, and your joint cartilage cushioned. Your body cannot knit collagen fibers together without vitamin C. Daily intake helps restore skin firmness, minimize signs of aging, and support joint flexibility as you grow older.
3. Healthy Blood Vessels & Capillary Tone
If you notice that you bruise easily or that your gums bleed when brushing, your micro-blood vessels may be lacking structural support. Vitamin C, combined with rutin and hesperidin, reinforces the walls of your veins and capillaries so they remain flexible and durable.
4. Natural Energy & Nerve Function
Feeling drained by midday? Vitamin C plays a vital role in carnitine production—a molecule that carries dietary fats into your cells' power plants (mitochondria) to make clean energy. It also helps your adrenal glands make brain messengers that keep you alert and focused throughout demanding days.
Vitamin C (as Ascorbic Acid, Rose Hips, Acerola Cherry)
1,000 mg
1,111%
Bioflavonoid Concentrate (from Lemon)
500 mg
*
Rutin Concentrate
100 mg
*
Hesperidin Concentrate
100 mg
*
Citrus Pectin
30 mg
*
* Daily Value (DV) not established.
Complete Ingredients:
Active Ingredients: Vitamin C (as Ascorbic Acid, Rose Hips, Acerola Cherry), Bioflavonoid Concentrate (from Lemon), Rutin Concentrate, Hesperidin Concentrate, Citrus Pectin. Other Ingredients: Vegetable Cellulose Capsule, Magnesium Stearate, Cellulose, Silica, Stearic Acid, and Buffering Base (Calcium Carbonate and Magnesium Oxide).
Scientific Citations & Clinical Evidence
To uphold high standards of medical accuracy and health transparency, each benefit described on this page is corroborated by peer-reviewed biomedical literature:
Immune Defense Support: Carr AC, Maggini S. "Vitamin C and Immune Function." Nutrients. 2017;9(11):1211. DOI: (PMID: 29099763). Confirms that vitamin C concentrates inside white blood cells to destroy foreign microbes while shielding surrounding human tissue from oxidative damage.
Synergy with Citrus Bioflavonoids: Vinson JA, Bose P. "Comparative bioavailability to humans of ascorbic acid alone or in a citrus extract." The American Journal of Clinical Nutrition. 1988;48(3):601-604. DOI: 10.1093/ajcn/48.3.601. (PMID: 3414575). Demonstrated that vitamin C combined with natural citrus bioflavonoid extract is absorbed 35% better and retained longer in human blood compared to plain synthetic ascorbic acid.
Collagen Synthesis & Skin Health: Pullar JM, Carr AC, Vissers MCM. "The Roles of Vitamin C in Skin Health." Nutrients. 2017;9(8):866. DOI: (PMID: 28805671). Details the mandatory role of ascorbate in activating the key enzymes (prolyl and lysyl hydroxylase) needed to synthesize dense, resilient collagen for skin, cartilage, and healing tissue.
Pharmacokinetics & Renal Excretion: Padayatty SJ, Levine M. "Vitamin C: the known and the unknown and Goldilocks." Oral Diseases. 2016;22(6):463-493. DOI: (PMID: 26808119). Explains why high single doses of unbuffered, immediate-release vitamin C are quickly excreted by the kidneys, validating the clinical utility of timed-release delivery.
Frequently Asked Questions (FAQ)
What makes Solaray Super Bio C "Buffered"?
Natural vitamin C (ascorbic acid) is acidic and can upset tender stomachs. Solaray adds an alkaline mineral buffering base made of calcium carbonate and magnesium oxide. These gentle minerals neutralize the acid, making the supplement mild on your digestive system while delivering valuable essential minerals.
How does the two-stage timed-release delivery benefit me?
Because your body flushes out excess vitamin C within hours, ordinary pills leave you unprotected later in the day. Solaray's formula releases 50% of its vitamin C right away for immediate antioxidant protection, and then slowly releases the remaining 50% over up to 12 hours. This provides smooth, continuous immune and cellular support.
What is the recommended way to take this supplement?
The suggested use is to take two (2) VegCaps daily with a meal or a full glass of water. To achieve true 24-hour continuous coverage, many customers take one capsule with breakfast in the morning and their second capsule with dinner 12 hours later.
Why are bioflavonoids, rutin, and hesperidin included?
In nature, vitamin C works as a team with plant bioflavonoids. Adding lemon bioflavonoids, rutin, and hesperidin mirrors how vitamin C occurs in whole citrus fruits. Scientific studies show this natural complex improves vitamin C absorption and helps protect blood vessel walls and capillaries against bruising.
Are Solaray Super Bio C VegCaps vegan-friendly and allergen-free?
Yes. Solaray Super Bio C uses 100% vegetarian capsules made from plant cellulose. It contains no animal gelatin, artificial colors, or artificial preservatives, and it is manufactured under rigorous Good Manufacturing Practices (cGMP).
Can I take this product if I have acid reflux or GERD?
Many people with acid sensitivity prefer buffered vitamin C because the alkaline calcium and magnesium base reduces stomach irritation. However, if you have severe GERD, gastric ulcers, or are taking prescription medications, we recommend checking with your healthcare provider first.
Product Warnings & Quality Guarantee
DIRECTIONS: Use only as directed. Take 2 VegCaps daily with a meal or glass of water. Store in a cool, dry place. WARNING: Do not use if safety seal is broken or missing. Keep out of reach of children. Keep your licensed health care practitioner informed when using this product.
*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. California Prop 65 Notice: This product meets or exceeds all federal safety standards and cGMP guidelines.
As a dietary supplement, take two capsules daily with a meal or a glass of water.
Helpful Customer Reviews
Review of Super Bio C - Buffered - Solaray Product 4460 Reviewed by Jeannie
Sunday, May 8, 2011 Rating: 5/5
The health benefits of this product are really amazing. The boost to my immune system was just wonderful. I felt more eneregized every morning that I took it. I also really didn't feel like my allergies were effecting me as much because of the boost in vitamin C I was getting from it.