Compare vitamin c supplement options, forms, and observed retailer prices on Zynava. Filter by preference (form, diet, budget) and open AI-powered search for matching products. This vitamin catalog page is educational comparison only — not medical advice.
Essential water-soluble vitamin for immune function, collagen synthesis, and antioxidant protection. Learn about ascorbic acid benefits, sources, and optimal intake.
Explore Vitamin C supplements and browse options based on ingredient research.
Zynava compared 19 vitamin c products across 4 participating retailers. Observed price range in catalog scan: $5.00 – $108.00. 29 listings have verified servings for price-per-serving display.
How ranking works: Results are ordered by your preferences, relevance, observed price, and verified value — never by paid placement. Always confirm the final price on the retailer site.
Compare Vitamin C in search · Catalog page · Educational research guide
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that serves as a powerful antioxidant and plays essential roles in immune function, collagen synthesis, and wound healing. Unlike most animals, humans cannot synthesize vitamin C and must obtain it through diet or supplements.
Vitamin C is renowned for its immune-boosting properties. It supports the function of various immune cells including neutrophils, lymphocytes, and macrophages. Research shows vitamin C may reduce the duration and severity of respiratory infections.
As a potent antioxidant, vitamin C helps protect cells from oxidative damage caused by free radicals. It works synergistically with vitamin E and other antioxidants to provide comprehensive cellular protection.
Vitamin C is essential for collagen synthesis, the most abundant protein in the body. It supports skin elasticity, wound healing, and tissue repair. Topical vitamin C is also used in skincare for its anti-aging and brightening effects.
Vitamin C may support cardiovascular health by protecting LDL cholesterol from oxidation and supporting endothelial function. Some studies suggest it may help maintain healthy blood pressure.
Vitamin C enhances the absorption of non-heme iron from plant-based foods. Consuming vitamin C-rich foods with iron-containing meals can significantly improve iron bioavailability.
Vitamin C is concentrated in the brain and cerebrospinal fluid. It supports neurotransmitter production and may help protect against age-related cognitive decline.
Vitamin C is abundant in many fruits and vegetables, particularly citrus fruits and bell peppers. Cooking can reduce vitamin C content, so fresh consumption is ideal.
| Food Source | Amount | Vitamin C Content |
|---|---|---|
| Red Bell Pepper (raw) | 1 medium | 152 mg |
| Orange | 1 medium | 70 mg |
| Strawberries (raw) | 1 cup | 89 mg |
| Broccoli (cooked) | 1 cup | 51 mg |
| Brussels Sprouts (cooked) | 1 cup | 53 mg |
| Kiwifruit | 1 medium | 71 mg |
| Green Bell Pepper (raw) | 1 medium | 96 mg |
| Tomato (raw) | 1 medium | 17 mg |
| Potato (baked with skin) | 1 medium | 28 mg |
| Cantaloupe | 1 cup | 59 mg |
| Age Group | RDA (mg/day) | Upper Limit (mg/day) |
|---|---|---|
| Infants 0-6 months | 40 | Not established |
| Infants 7-12 months | 50 | Not established |
| Children 1-3 years | 15 | 400 |
| Children 4-8 years | 25 | 650 |
| Children 9-13 years | 45 | 1,200 |
| Males 14+ years | 90 | 2,000 |
| Females 14+ years | 75 | 2,000 |
| Pregnant women | 85 | 2,000 |
| Lactating women | 120 | 2,000 |
| Smokers | +35 mg additional | 2,000 |
Vitamin C absorption decreases as dose increases. At lower doses (<100 mg), absorption may be 80-90%, but drops to 50% or less at higher doses. Liposomal forms may achieve higher blood levels due to improved absorption.
Numerous studies show vitamin C reduces the duration and severity of colds. A meta-analysis of 29 studies found vitamin C reduced cold duration by 8% in adults and 14% in children. Higher doses (1-2g) are more effective during acute illness.
The Antioxidant Supplementation in Atherosclerosis Prevention (ASAP) study showed vitamin C supplementation reduced carotid atherosclerosis progression. Other studies suggest benefits for blood pressure and endothelial function.
Some studies suggest vitamin C may help prevent certain cancers, though results are mixed. High-dose IV vitamin C shows promise in cancer treatment, though more research is needed.
Topical vitamin C improves skin appearance, reduces wrinkles, and protects against UV damage. Oral supplementation supports collagen production and wound healing.
Use our research tool to explore Vitamin C supplements and see what studies have examined.
Vitamin C may interact with certain medications:
Zynava lists Vitamin C products from multiple retailers and shows each offer’s observed price from our catalog. You can filter by preferences (form, dietary claims, and more), then compare matching options side by side. We do not sell supplements or invent rankings.
Only when servings per container are verified from label or catalog facts. If servings are unknown or conflicting, we show the observed product price and omit price-per-serving rather than guessing.
Yes. Use Zynava search or Ask Zynava to match preferences such as capsule vs tablet, non-GMO, vegan, and similar catalog filters, then compare observed prices among the products that match.
No. This page helps you compare shopping options and observed prices. It is not medical advice, diagnosis, or a recommendation of what you should take. Talk with a qualified clinician for personal health decisions.