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Every Ester-C serving is 1,000 mg of vitamin C as calcium ascorbate. Compare the six formulas

4 formulas

Ester-C vitamin C tablets

Four Ester-C tablets, all vegetarian, all 1,000 mg per serving.

4 formulas

  1. Ester-C Vitamin C 1000 mg Coated Tablets, 90 tablets
    Tablet1000 mg

    Ester-C Vitamin C 1000 mg Coated Tablets

    1 tablet = 1,000 mg + 102 mg citrus bioflavonoids

    4.7 (21,122) 4.7 out of 5 from 21,122 ratings

    from $11.9013¢ a serving · 90 tablets
  2. Ester-C 500 mg 24 Hour Tablets, 90 tablets
    Tablet500 mg

    Ester-C 500 mg 24 Hour Tablets

    2 tablets = 1,000 mg + 204 mg citrus bioflavonoids

    4.7 (8,901) 4.7 out of 5 from 8,901 ratings

    from $6.9716¢ a serving · 90 tablets
  3. Ester-C 1000 mg with Citrus Bioflavonoids Vegetarian Tablets, 45 tablets
    Veg tablet1000 mg

    Ester-C 1000 mg with Citrus Bioflavonoids Vegetarian Tablets

    1 tablet = 1,000 mg + 200 mg citrus bioflavonoids

    4.6 (4,578) 4.6 out of 5 from 4,578 ratings

    from $14.5332¢ a serving · 45 tablets
  4. Ester-C 500 mg with Citrus Bioflavonoids Vegetarian Tablets, 90 tablets
    Veg tablet500 mg

    Ester-C 500 mg with Citrus Bioflavonoids Vegetarian Tablets

    2 tablets = 1,000 mg + 400 mg citrus bioflavonoids

    4.8 (1,344) 4.8 out of 5 from 1,344 ratings

    from $10.1723¢ a serving · 90 tablets

If you prefer a tablet, choose by size first. The 1000 mg tablets give you a full serving in one piece. The 500 mg tablets split it into two smaller ones you can take together or one at breakfast and one at dinner, as long as you stay with two a day.

The coated box line (1000 mg and 500 mg 24 Hour) has a coating and the C-Sorb citrus bioflavonoid complex. The bottle line with citrus bioflavonoids comes as uncoated vegetarian tablets with 200 to 400 mg of bioflavonoids per serving. Every tablet on this shelf is labeled vegetarian or vegetarian friendly.

To see Ester-C vitamin C tablets next to every other formula of Ester-C vitamin C, compare them.

Ester-C vitamin C tablets: the formulas compared
FormulaServingBioflavonoidsCalciumBottle sizesPer serving, from
Vitamin C 1000 mg Coated Tablets1 tablet = 1,000 mg102 mg110 mg90, 120, 2 × 12013¢
500 mg 24 Hour Tablets2 tablets = 1,000 mg204 mg110 mg90, 4 × 9015¢
1000 mg with Citrus Bioflavonoids Vegetarian Tablets1 tablet = 1,000 mg200 mg110 mg45, 120, 180, 2 × 18017¢
500 mg with Citrus Bioflavonoids Vegetarian Tablets2 tablets = 1,000 mg400 mg110 mg90, 45016¢

Questions about Ester-C vitamin C tablets

Which Ester-C tablet should you choose?

Pick the 1000 mg coated tablet for one piece a day, the 500 mg 24 Hour tablet for two smaller ones, or a vegetarian tablet from the bottle line if you want 200 to 400 mg of citrus bioflavonoids per serving.

Are Ester-C tablets coated?

The box line (1000 mg and 500 mg 24 Hour) is coated, with a natural palm leaf glaze among the other ingredients. The vegetarian tablets with citrus bioflavonoids are sold as vegetarian tablets in the bottle.

Can you split your Ester-C 500 mg tablets across the day?

The box asks adults for two tablets daily, preferably with a meal. Taking one with breakfast and one with dinner still adds up to that serving. Check with your doctor if you take other vitamin C.