NEW
🍊 Vitamin C
Cost per serving
$0.10
Avg·−72%240 servings · ~240-day supply
vitamin · 184 active deals
The best-value Vitamin C right now is about $0.05 per dose — across 153 tracked products the median is $0.128/dose, so shopping on cost-per-dose can cut your cost several-fold. Every Vitamin C deal here is ranked by cost per dose— what you actually pay per serving, not the sticker price — because forms and absorption differ, so the cheapest bottle isn’t always the cheapest dose.
Right now the best value across our full Vitamin C catalog is at $0.05 per serving.
Recommended daily intake
Absorption falls at high single doses; splitting doses helps. General FDA/NIH adult guidance — not medical advice.
Vitamin C (L-ascorbic acid) is an essential water-soluble vitamin that the body cannot make on its own; per the NIH Office of Dietary Supplements it is required for the biosynthesis of collagen, L-carnitine, and certain neurotransmitters, is involved in protein metabolism, and acts as an important physiological antioxidant that also helps regenerate other antioxidants such as vitamin E. It also plays a role in immune function and improves the absorption of nonheme iron, while too little vitamin C causes scurvy. Because of its antioxidant and immune roles, it has been promoted for and studied in conditions such as cancer (prevention and treatment), cardiovascular disease, age-related macular degeneration and cataracts, and the common cold; however, the NIH notes the evidence is not conclusive — for example, while some case-control studies link higher dietary vitamin C to lower cancer risk, results from prospective cohort studies are inconsistent and most randomized controlled trials have found that vitamin C supplementation, alone or with other nutrients, does not affect cancer risk. More research is needed before firm conclusions can be drawn — per the NIH Office of Dietary Supplements; not medical advice.
Per the NIH Office of Dietary Supplements, supplements most commonly contain vitamin C as ascorbic acid, which has a bioavailability equivalent to that of the ascorbic acid naturally occurring in foods such as orange juice and broccoli. Other forms include sodium ascorbate, calcium ascorbate, other mineral ascorbates, ascorbic acid with bioflavonoids, and combination products such as Ester-C. NIH notes that the few human studies comparing these forms found largely similar plasma vitamin C levels (one study reported Ester-C produced higher leukocyte concentrations at 24 hours, while another found no differences among ascorbic acid, Ester-C, and ascorbic acid with bioflavonoids), and that the relatively low cost of plain ascorbic acid led those authors to conclude it is the preferred supplemental source.
The best sources of vitamin C are fruits and vegetables, especially citrus fruits, red and green peppers, kiwifruit, broccoli, strawberries, and Brussels sprouts; orange juice, grapefruit juice, and tomato juice also contain large amounts. Citrus fruits, tomatoes and tomato juice, and potatoes are major contributors to the American diet, and vitamin C is added to some fortified breakfast cereals. Because ascorbic acid is water soluble and destroyed by heat, cooking and prolonged storage can reduce a food's vitamin C content — per the NIH Office of Dietary Supplements.
Every Vitamin C deal above is ranked by real cost per dose with no paid placement — see our and .
The is 90 mg for adult men and 75 mg for adult women (19+); 85 mg in pregnancy and 120 mg during lactation. Children and teens range from 15 to 75 mg by age, and infants have Adequate Intakes of 40-50 mg. People who smoke need 35 mg more per day. — per the NIH Office of Dietary Supplements; general information, not medical advice.
Vitamin C has low toxicity. High doses can cause diarrhea, nausea, abdominal cramps, and other gastrointestinal disturbances. The ranges from 400 to 2,000 mg depending on age, reaching 2,000 mg for adults 19+. Long-term intakes above the UL may increase the risk of adverse effects. — per the NIH Office of Dietary Supplements; general information, not medical advice.
Deficiency causes scurvy, with signs appearing within 1 month of intake below about 10 mg/day. Early symptoms include fatigue, malaise, and gum inflammation. As it progresses: petechiae, ecchymoses, purpura, joint pain, poor wound healing, hyperkeratosis, corkscrew hairs, swollen bleeding gums, and tooth loss. Untreated, scurvy is fatal. — per the NIH Office of Dietary Supplements; general information, not medical advice.
Groups at risk of inadequacy include people who smoke and those exposed to secondhand smoke; infants fed evaporated or boiled milk; people who eat a limited variety of food; and people with malabsorption and certain chronic diseases, such as severe intestinal malabsorption, cachexia, some cancers, and end-stage renal disease on hemodialysis. — per the NIH Office of Dietary Supplements; general information, not medical advice.
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.
Groups more likely to have vitamin C inadequacy include people who smoke or are exposed to secondhand smoke, infants fed evaporated or boiled cow's milk, people who consume a limited variety of food, and those with malabsorption or certain chronic diseases. Vitamin C deficiency causes scurvy: signs can appear within 1 month of intake below about 10 mg/day, starting with fatigue, malaise, and gum inflammation, and progressing to petechiae, ecchymoses, purpura, joint pain, poor wound healing, hyperkeratosis, corkscrew hairs, and bleeding gums as impaired collagen synthesis weakens connective tissue. Left untreated, scurvy is fatal — per the NIH Office of Dietary Supplements.
In general vitamin C has low toxicity and high intakes are not believed to cause serious adverse effects, but high doses can lead to diarrhea, nausea, abdominal cramps, and other gastrointestinal disturbances; theoretical concerns about kidney stones and excess iron absorption are not generally considered a risk in healthy individuals. The Tolerable Upper Intake Level (UL) for vitamin C ranges from 400 to 2,000 mg/day depending on age (for example, 400 mg for ages 1–3 and rising with age), and long-term intakes above the UL may increase the risk of adverse effects — per the NIH Office of Dietary Supplements.
Cost per serving
$0.10
Avg·−72%240 servings · ~240-day supply
Cost per serving
$0.10
240 servings · ~240-day supply
Cost per serving
$0.08
480 servings · ~480-day supply
Cost per serving
$0.25
120 servings · ~120-day supply
Cost per serving
$0.17
60 servings · ~60-day supply
Cost per serving
$0.06
180 servings · ~180-day supply
Cost per serving
$0.18
120 servings · ~120-day supply
Cost per serving
$0.05
250 servings · ~250-day supply
Cost per serving
$0.33
60 servings · ~60-day supply
Cost per serving
$0.09
100 servings · ~100-day supply
Cost per serving
$0.17
75 servings · ~75-day supply
Cost per serving
$0.10
240 servings · ~240-day supply
Cost per serving
$0.14
70 servings · ~70-day supply
Cost per serving
$0.06
360 servings · ~360-day supply
Cost per serving
$0.09
250 servings · ~250-day supply
Cost per serving
$0.17
60 servings · ~60-day supply
Cost per serving
$0.23
120 servings · ~120-day supply
Cost per serving
$0.22
120 servings · ~120-day supply
Cost per serving
$0.34
70 servings · ~70-day supply
Cost per serving
$0.15
60 servings · ~60-day supply
Cost per serving
$0.16
60 servings · ~60-day supply
Cost per serving
$0.19
90 servings · ~90-day supply
Cost per serving
$0.42
60 servings · ~60-day supply
Cost per serving
$0.56
60 servings · ~60-day supply
Cost per serving
$0.17
60 servings · ~60-day supply
Cost per serving
$0.27
120 servings · ~120-day supply
Cost per serving
$0.17
60 servings · ~60-day supply
Cost per serving
$0.10
60 servings · ~60-day supply
Cost per serving
$0.25
150 servings · ~150-day supply
Cost per serving
$0.14
150 servings · ~150-day supply
Cost per serving
$0.08
120 servings · ~120-day supply
Cost per serving
$0.11
240 servings · ~240-day supply
Cost per serving
$0.07
360 servings · ~360-day supply
Cost per serving
$0.50
60 servings · ~60-day supply
Cost per serving
$0.08
270 servings · ~270-day supply
Cost per serving
$0.64
35 servings · ~35-day supply
Cost per serving
$1.97
30 servings · ~30-day supply
Cost per serving
$0.41
50 servings · ~50-day supply
Cost per serving
$1.88
32 servings · ~32-day supply
Cost per serving
$0.25
120 servings · ~120-day supply
Cost per serving
$0.60
35 servings · ~35-day supply
Cost per serving
$0.50
50 servings · ~50-day supply
Cost per serving
$0.62
35 servings · ~35-day supply
Cost per serving
$1.50
30 servings · ~30-day supply
Cost per serving
$0.10
200 servings · ~200-day supply
Cost per serving
$0.27
60 servings · ~60-day supply
Cost per serving
$0.33
60 servings · ~60-day supply
Cost per serving
$0.13
Avg·−48%50 servings · ~50-day supply
Sports Research · 🍊 Vitamin C
CPS
Price
$22.95
Amazon.com · 🅱️ B-Complex
CPS
Price
$24.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$39.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$29.59
Amazon.com · 🅱️ B-Complex
CPS
Price
$10.30
Amazon.com · 🅱️ B-Complex
CPS
Price
$9.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$21.75
Amazon.com · 🅱️ B-Complex
CPS
Price
$11.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$19.90
Amazon.com · 🅱️ B-Complex
CPS
Price
$8.64
Amazon.com · 🅱️ B-Complex
CPS
Price
$12.49
Amazon.com · 🅱️ B-Complex
CPS
Price
$24.95
Amazon.com · 🅱️ B-Complex
CPS
Price
$10.12
Amazon.com · 🅱️ B-Complex
CPS
Price
$19.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$22.18
Amazon.com · 💇 Vitamin B7
CPS
Price
$9.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$27.49
Amazon.com · 🅱️ B-Complex
CPS
Price
$26.24
Amazon.com · 🅱️ B-Complex
CPS
Price
$23.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$8.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$9.72
Amazon.com · 🅱️ B-Complex
CPS
Price
$16.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$24.95
Amazon.com · 🅱️ B-Complex
CPS
Price
$33.79
Amazon.com · 🅱️ B-Complex
CPS
Price
$9.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$32.95
Amazon.com · 🅱️ B-Complex
CPS
Price
$9.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$5.99
Amazon.com · 🅱️ B-Complex
CPS
Price
$38.18
Amazon.com · 🅱️ B-Complex
CPS
Price
$20.49
Amazon.com · 🅱️ B-Complex
CPS
Price
$9.97
Amazon.com · 🅱️ B-Complex
CPS
Price
$26.95
Amazon.com · 🅱️ B-Complex
CPS
Price
$24.71
Amazon.com · 🦴 Calcium
CPS
Price
$29.89
Amazon.com · ✨ Bovine Collagen
CPS
Price
$20.92
Amazon.com · ✨ Collagen Peptides
CPS
Price
$22.49
Amazon.com · ✨ Bovine Collagen
CPS
Price
$59.00
Amazon.com · ✨ Bovine Collagen
CPS
Price
$20.29
Amazon.com · ✨ Collagen Peptides
CPS
Price
$60.00
Amazon.com · ✨ Collagen Peptides
CPS
Price
$29.99
Amazon.com · ✨ Collagen Peptides
CPS
Price
$20.99
Amazon.com · ✨ Collagen Peptides
CPS
Price
$25.01
Amazon.com · ✨ Bovine Collagen
CPS
Price
$21.74
Amazon.com · ✨ Collagen Peptides
CPS
Price
$44.98
Amazon.com · 🩸 L-Arginine
CPS
Price
$20.25
Amazon.com · 🔶 Copper
CPS
Price
$15.99
Amazon.com · 🔶 Copper
CPS
Price
$19.61
HerbsPro · 🍊 Vitamin C
CPS
Price
$6.65
Yes. Vitamin C supplements may interact with chemotherapy and radiation therapy, as antioxidants might affect treatment; people should consult their oncologist before high doses. Vitamin C with other antioxidants may also blunt the HDL increase from niacin/simvastatin (statin) therapy, so providers should monitor lipid levels. — per the NIH Office of Dietary Supplements; general information, not medical advice.
Windmill, Vitamin C, 250mg, 100 Tabs at $0.05 per serving — the lowest cost-per-dose vitamin c in our catalog. See the full ranking on the Best Vitamin C page.
We're tracking 184 active Vitamin C deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
Across 153 tracked Vitamin C deals the median cost-per-dose is $0.128; the cheapest quartile comes in under $0.090 per serving. Anything below the median is a solid deal for the same molecule.
Deals are submitted by the community and ranked by net votes (hot minus cold) plus cost-per-dose normalised across container sizes. We take no affiliate kickbacks for ordering; sponsored slots, when present, are clearly badged.
In general vitamin C has low toxicity and high intakes are not believed to cause serious adverse effects, but high doses can lead to diarrhea, nausea, abdominal cramps, and other gastrointestinal disturbances; theoretical concerns about kidney stones and excess iron absorption are not generally considered a risk in healthy individuals. The Tolerable Upper Intake Level (UL) for vitamin C ranges from 400 to 2,000 mg/day depending on age (for example, 400 mg for ages 1–3 and rising with age), and long-term intakes above the UL may increase the risk of adverse effects — per the NIH Office of Dietary Supplements.
The best sources of vitamin C are fruits and vegetables, especially citrus fruits, red and green peppers, kiwifruit, broccoli, strawberries, and Brussels sprouts; orange juice, grapefruit juice, and tomato juice also contain large amounts. Citrus fruits, tomatoes and tomato juice, and potatoes are major contributors to the American diet, and vitamin C is added to some fortified breakfast cereals. Because ascorbic acid is water soluble and destroyed by heat, cooking and prolonged storage can reduce a food's vitamin C content — per the NIH Office of Dietary Supplements.
Dosage, upper-limit, deficiency, food-source and interaction facts are sourced from the NIH Office of Dietary Supplements Vitamin C fact sheet. General information, not medical advice.
