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Ester-C 500 mg 24 Hour Vitamin C Tablets for Immune Support, 90 Count

4.8 stars out of 654 reviews
(4.8)|
654 ratings

Key item features

  • Ester-C 500 mg 24 Hour Vitamin C Tablets for Immune Support, 90 Count
  • Two 60 count bottles of Ester-C 24 Hour 500 mg Vitamin C Tablets for Immune Support *
  • This Vitamin C Supplement is clinically studied to last up to two times longer than regular Vitamin C *†
  • Non-GMO, gluten free, vegetarian vitamins
  • Vitamin C 500 mg tablets support upper respiratory health *
  • Non-acidic Ester-C Vitamin C immune support * is gentle on your stomach
  • *These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. †The Vitamin C in Ester-C has been clinically studied to stay in the white blood cells for up to 24 hours, which is longer than regular Vitamin C. White blood cells are an important component of the immune system.
Current price is $6.977.7 ¢/count
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Customer ratings & reviews

4.8 out of 5 stars
stars654 ratings173 reviews
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Reviews summary

Pros
  • : Easy to ingest due to manageable size.
  • : Helps maintain and support immune system function.
  • : Offers affordable options for the amount provided.
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Showing 1-3 of 173 reviews

Aug 23, 2025
Lori
5 out of 5 stars review

Verified Purchase

Good for the immune system

I've been taking this vitamin C for about a year, prior to that I was constantly picking something up from my daycare attending grandchildren, but since I started taking this I seem to have fewer colds and sore throats and I honestly think it's because of taking this daily, I was taking 1000 but I recently started taking 500 mg, we'll see if it still holds true

Helpful?1Q41Q29QHJ1X10318443
Dec 22, 2025
Lisa
5 out of 5 stars review

Verified Purchase

Vit C

A friend of mine, whose father worked in hospital recommended that I take Ester vitamin C 1000 a day he said he's better than the flu shot since I have been taking this for 15 years I have not had a flu. I barely get a cold along with sink I'm in good shape. I will also take the D3 K2 very important few others that are important but they're kind of main ones. Stay well doctors won't keep you well gotta keep yourself well and that's how you do it holistically naturally.

Helpful?1Q41Q29QHJ1X10318443
Dec 10, 2025
Kat
5 out of 5 stars review

Verified Purchase

Ester C. The only vitamin c you should take!

I was unable to take regular vitamin C. It upset my stomach every time I took it. Tried all brands. Finally decided to take Ester C. It is a timed release vitamin. It doesn't release it all at once. Never hurt or upset my stomach. I have been taking it for over 10 years or longer. Very satisfied and I recommend it to everyone.

Helpful?1Q41Q29QHJ1X10318443