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Cheapest Vitamin C on iHerb

Ranked by real cost per 1,000 mg of Vitamin C — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 2.5× more per 1,000 mg of Vitamin C than the best-value pick California Gold Nutrition. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 1,000 mg
1
California Gold Nutrition, Gold C Powder, Vitamin C, 1,000 mg, 8.81 oz (250 g)
California Gold Nutrition, Gold C Powder, Vitamin C, 1,000 mg, 8.81 oz (250 g)
California Gold Nutrition
1,000 mg2509.170.037View on iHerb →
2
Frontier Co-op, Pure Vitamin C Powder, 16 oz (453 g)
Frontier Co-op, Pure Vitamin C Powder, 16 oz (453 g)
Frontier Co-op
838 mg50317.020.040View on iHerb →
3
Swanson, 100% Pure C-1000, Vitamin C Powder, 16 oz (454 g)
Swanson, 100% Pure C-1000, Vitamin C Powder, 16 oz (454 g)
Swanson
1,000 mg45421.290.047View on iHerb →
4
NutriBiotic, Immunity, Calcium Ascorbate, 2.2 lb (1 kg)
NutriBiotic, Immunity, Calcium Ascorbate, 2.2 lb (1 kg)
NutriBiotic
1,760 mg50041.390.047View on iHerb →
5
Nature's Truth, Vitamin C Plus Wild Rose Hips, 1,000 mg, 300 Caplets
Nature's Truth, Vitamin C Plus Wild Rose Hips, 1,000 mg, 300 Caplets
Nature's Truth
1,000 mg30016.440.055View on iHerb →
6
The Vitamin Shoppe, C Powder, 17 oz (482 mg)
The Vitamin Shoppe, C Powder, 17 oz (482 mg)
The Vitamin Shoppe
1,000 mg47626.990.057View on iHerb →
7
Metabolic Nutrition, Vitamin-C, Unflavored, 17.64 oz (500 g)
Metabolic Nutrition, Vitamin-C, Unflavored, 17.64 oz (500 g)
Metabolic Nutrition
1,000 mg50029.990.060View on iHerb →
8
Amazing Nutrition, Vitamin C, 1,000 mg, 250 Tablets
Amazing Nutrition, Vitamin C, 1,000 mg, 250 Tablets
Amazing Nutrition
1,000 mg25015.390.062View on iHerb →
9
The Vitamin Shoppe, Vitamin C Powder, 8 oz (227 g)
The Vitamin Shoppe, Vitamin C Powder, 8 oz (227 g)
The Vitamin Shoppe
1,000 mg22613.990.062View on iHerb →
10
NutriBiotic, Immunity, Calcium Ascorbate, 16 oz (454 g)
NutriBiotic, Immunity, Calcium Ascorbate, 16 oz (454 g)
NutriBiotic
1,760 mg22724.740.062View on iHerb →
11
Life Extension, Buffered Vitamin C Powder, 1 lb (454 g)
Life Extension, Buffered Vitamin C Powder, 1 lb (454 g)
Life Extension
4,000 mg8421.000.063View on iHerb →
12
California Gold Nutrition, Gold C®, USP Grade Vitamin C, 1,000 mg, 240 Veggie Capsules
California Gold Nutrition, Gold C®, USP Grade Vitamin C, 1,000 mg, 240 Veggie Capsules
California Gold Nutrition
1,000 mg24015.420.064View on iHerb →
13
NutriBiotic, Immunity, Calcium Ascorbate, 8 oz (227 g)
NutriBiotic, Immunity, Calcium Ascorbate, 8 oz (227 g)
NutriBiotic
1,760 mg11313.120.066View on iHerb →
14
Amazing Nutrition, Vitamin C, 1,000 mg, 120 Tablets
Amazing Nutrition, Vitamin C, 1,000 mg, 120 Tablets
Amazing Nutrition
1,000 mg1207.980.067View on iHerb →
15
Metabolic Nutrition, Vitamin-C, Unflavored, 10.58 oz (300 g)
Metabolic Nutrition, Vitamin-C, Unflavored, 10.58 oz (300 g)
Metabolic Nutrition
1,000 mg30019.990.067View on iHerb →
16
NaturesPlus, Source of Life®, Green and Red Mini-Tabs, 180 Tablets
NaturesPlus, Source of Life®, Green and Red Mini-Tabs, 180 Tablets
NaturesPlus
1,000 mg302.000.067View on iHerb →
17
Nutricost, Vitamin C with Rose Hips, 1,000 mg, 240 Capsules
Nutricost, Vitamin C with Rose Hips, 1,000 mg, 240 Capsules
Nutricost
1,000 mg24018.950.079View on iHerb →
18
Nutricost, Calcium Ascorbate, Unflavored, 8.9 oz (250 g)
Nutricost, Calcium Ascorbate, Unflavored, 8.9 oz (250 g)
Nutricost
790 mg25015.760.080View on iHerb →
19
Futurebiotics, Vitamin C, 500 mg, 250 Tablets
Futurebiotics, Vitamin C, 500 mg, 250 Tablets
Futurebiotics
500 mg2509.990.080View on iHerb →
20
Futurebiotics, Vitamin C, 500 mg, 120 Tablets
Futurebiotics, Vitamin C, 500 mg, 120 Tablets
Futurebiotics
500 mg1204.990.083View on iHerb →
21
Force Factor, Vitamin C, 1,000 mg, 60 Tablets
Force Factor, Vitamin C, 1,000 mg, 60 Tablets
Force Factor
1,000 mg604.990.083View on iHerb →
22
Solaray, Vitamin C Powder, 8 oz (227 g)
Solaray, Vitamin C Powder, 8 oz (227 g)
Solaray
5,000 mg4518.890.084View on iHerb →
23
NOW Foods, Buffered Magnesium Ascorbate, Vitamin C Powder, 8 oz (227 g)
NOW Foods, Buffered Magnesium Ascorbate, Vitamin C Powder, 8 oz (227 g)
NOW Foods
820 mg22716.530.089View on iHerb →
24
Life Extension, Effervescent Vitamin C, Magnesium Crystals, 6.35 oz (180 g)
Life Extension, Effervescent Vitamin C, Magnesium Crystals, 6.35 oz (180 g)
Life Extension
4,500 mg3012.000.089View on iHerb →
25
California Gold Nutrition, Gold C®, USP Grade Vitamin C, 1,000 mg, 60 Veggie Capsules
California Gold Nutrition, Gold C®, USP Grade Vitamin C, 1,000 mg, 60 Veggie Capsules
California Gold Nutrition
1,000 mg605.560.093View on iHerb →

How we rank Vitamin C

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.