Get Started Free

Cheapest Vitamin C (Calcium Ascorbate) on iHerb

Ranked by real cost per 100 mg of Vitamin C (Calcium Ascorbate) — cheapest value first.

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

The priciest option here costs about 11.6× more per 100 mg of Vitamin C (Calcium Ascorbate) than the best-value pick Solaray. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Solaray, Buffered Vitamin C Powder, 8 oz (227 g)
Solaray, Buffered Vitamin C Powder, 8 oz (227 g)
Solaray
5,000 mg3722.890.012View on iHerb →
2
BioSchwartz, Once Daily Vitamin C, Buffered, Stomach Gentle with Bioflavonoids & Rose Hips, 100 Tablets
BioSchwartz, Once Daily Vitamin C, Buffered, Stomach Gentle with Bioflavonoids & Rose Hips, 100 Tablets
BioSchwartz
1,000 mg10012.490.013View on iHerb →
3
Source Naturals, Systemic C™, 120 Capsules (500 mg per Capsule)
Source Naturals, Systemic C™, 120 Capsules (500 mg per Capsule)
Source Naturals
1,000 mg6013.590.023View on iHerb →
4
Nature's Truth, Vitamin C Plus Wild Rose Hips, Natural Orange, 60 Chewable Tablets
Nature's Truth, Vitamin C Plus Wild Rose Hips, Natural Orange, 60 Chewable Tablets
Nature's Truth
1,000 mg307.980.027View on iHerb →
5
Super Nutrition, Simply One®, 50+ Women Multivitamin + Supporting Herbs, Mixed Berry , 90 Chewable Tablets
Super Nutrition, Simply One®, 50+ Women Multivitamin + Supporting Herbs, Mixed Berry , 90 Chewable Tablets
Super Nutrition
180 mg906.530.040View on iHerb →
6
Divine Health, Dr Colbert M.D., Immune Support, 90 Capsules
Divine Health, Dr Colbert M.D., Immune Support, 90 Capsules
Divine Health
1,000 mg4518.220.041View on iHerb →
7
Nature's Answer, Liquid Vitamin C-1000 with Rose Hips & Citrus Bioflavonoids, Natural Lemon, 8 fl oz (240 ml)
Nature's Answer, Liquid Vitamin C-1000 with Rose Hips & Citrus Bioflavonoids, Natural Lemon, 8 fl oz (240 ml)
Nature's Answer
1,000 mg169.200.058View on iHerb →
8
Nature's Answer, Bilberry Vision Complex, 60 Vegetarian Capsules
Nature's Answer, Bilberry Vision Complex, 60 Vegetarian Capsules
Nature's Answer
1,000 mg2015.740.079View on iHerb →
9
Nature's Way, Sambucus® Immune Lozenges, Tropical, 24 Lozenges
Nature's Way, Sambucus® Immune Lozenges, Tropical, 24 Lozenges
Nature's Way
1,000 mg64.850.081View on iHerb →
10
Nature's Way, Sambucus® Immune Lozenges, Elderberry, Vitamin C, Wild Cherry, 24 Lozenges
Nature's Way, Sambucus® Immune Lozenges, Elderberry, Vitamin C, Wild Cherry, 24 Lozenges
Nature's Way
1,000 mg64.850.081View on iHerb →
11
KAL, Enhanced Energy®, Whole Food Multivitamin, Iron Free, 180 VegTabs
KAL, Enhanced Energy®, Whole Food Multivitamin, Iron Free, 180 VegTabs
KAL
1,000 mg6055.590.093View on iHerb →
12
BioSchwartz, Clean & Ultra Pure Immunity Boost, 90 Capsules
BioSchwartz, Clean & Ultra Pure Immunity Boost, 90 Capsules
BioSchwartz
1,000 mg3028.290.094View on iHerb →
13
KAL, Enhanced Energy®, Whole Food Multivitamin, Iron Free, 90 VegTabs
KAL, Enhanced Energy®, Whole Food Multivitamin, Iron Free, 90 VegTabs
KAL
1,000 mg3031.390.105View on iHerb →
14
Designs For Health, Designs For Sport®, Hydration Complex, Lemon-Orange, 8.5 oz (240 g)
Designs For Health, Designs For Sport®, Hydration Complex, Lemon-Orange, 8.5 oz (240 g)
Designs For Health
1,734 mg3055.240.106View on iHerb →
15
Solgar, Advanced Antioxidant Formula, 120 Vegetable Capsules
Solgar, Advanced Antioxidant Formula, 120 Vegetable Capsules
Solgar
500 mg6032.280.108View on iHerb →
16
JUNP Hydration, Electrolyte Powder Mix, Orange, 14.2 oz (405 g)
JUNP Hydration, Electrolyte Powder Mix, Orange, 14.2 oz (405 g)
JUNP Hydration
250 mg9024.350.108View on iHerb →
17
Michael's Health, Female Reproductive Factors, 120 Vegetarian Tablets
Michael's Health, Female Reproductive Factors, 120 Vegetarian Tablets
Michael's Health
500 mg4021.670.108View on iHerb →
18
Super Nutrition, SimplyOne® Chewable 50+ Men Multivitamin + Supporting Herbs, Mixed Berry, 90 Chewable Tablets
Super Nutrition, SimplyOne® Chewable 50+ Men Multivitamin + Supporting Herbs, Mixed Berry, 90 Chewable Tablets
Super Nutrition
180 mg9018.440.114View on iHerb →
19
KAL, Enhanced Energy®, Whole Food Multivitamin, 90 VegTabs
KAL, Enhanced Energy®, Whole Food Multivitamin, 90 VegTabs
KAL
1,000 mcg3035.290.118View on iHerb →
20
Super Nutrition, Simply One®, Perfect Kid's® Multivitamin with B12, Blueberry, Spices, Vitamin A, and Folate, 60 Chewable Tablets
Super Nutrition, Simply One®, Perfect Kid's® Multivitamin with B12, Blueberry, Spices, Vitamin A, and Folate, 60 Chewable Tablets
Super Nutrition
180 mg6013.270.123View on iHerb →
21
California Gold Nutrition, Andrographis Immune with AP-Bio, Andrographis Extract with Vitamin C and Zinc, 100 mg, 120 Tablets
California Gold Nutrition, Andrographis Immune with AP-Bio, Andrographis Extract with Vitamin C and Zinc, 100 mg, 120 Tablets
California Gold Nutrition
90 mg12014.520.134View on iHerb →
22
Michael's Health, Stress Adrenal Support, 90 Vegetarian Tablets
Michael's Health, Stress Adrenal Support, 90 Vegetarian Tablets
Michael's Health
750 mg3032.230.143View on iHerb →
23
DaVinci Laboratories, Spectra Woman, Multiple Vitamin/Mineral, 240 Tablets
DaVinci Laboratories, Spectra Woman, Multiple Vitamin/Mineral, 240 Tablets
DaVinci Laboratories
500 mg12086.580.144View on iHerb →
24
JUNP Hydration, Electrolyte Powder Mix, Wild Berry, 14.9 oz (423 g)
JUNP Hydration, Electrolyte Powder Mix, Wild Berry, 14.9 oz (423 g)
JUNP Hydration
250 mg9032.470.144View on iHerb →
25
JUNP Hydration, Electrolyte Powder Mix, Pina Colada, 13 oz (369 g)
JUNP Hydration, Electrolyte Powder Mix, Pina Colada, 13 oz (369 g)
JUNP Hydration
250 mg9032.470.144View on iHerb →

How we rank Vitamin C (Calcium Ascorbate)

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.

← Browse all nutrients

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.