Last update
3/28/2026
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Overview
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 14 Reviews
8.3
Supplement Facts
Serving Size: 2 Capsules
Amount Per Serving
%DV
Vitamin C(as Ester-C® Calcium Ascorbate)
1,000 mg (1 g)
1,111%
Calcium(as Ester-C® Calcium Ascorbate)
110 mg
8%
Citrus Bioflavonoids ComplexCitrus Bioflavonoids (Citrus limon) (fruit), Sweet Orange,Tangerine, Lime, Lemon, Acerola, Rutin, Hesperidin Complex(Citrus spp.) (fruit), Naturally Occurring Vitamin C Metabolites
400 mg
**
Most Useful Reviews
9
Effective treatment
4 people found this helpful
An excellent vitamin for those knowledgeable about it. I recommend a dosage of 5 grams during the onset of snot, cough, or sore throat. It typically resolves issues within three days. Take 2-3 times a day, depending on weight—three times if over 80 kg. I endorse this product and assure you of its quality and effectiveness.
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8
Improved immunity
1 people found this helpful
Good to take every day. I take these Ester-C pills daily to help fend off germs at my workplace (a grocery store) where I'm exposed to many people, and someone is often coughing or sneezing. Since I started taking them, I haven't been sick for over nine months now!
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9
Winter protection
The most effective vitamin! Throughout winter, I took Ester C vitamins, including D3 and omega 3, and I didn’t get sick, not even a usual runny nose or chronic cough.
Read More
User Reviews
USERS' SCORE
Good
Based on 14 Reviews
8.3
- All Reviews
- Positive Reviews
- Negative Reviews
9
Effective treatment
4 people found this helpful
An excellent vitamin for those knowledgeable about it. I recommend a dosage of 5 grams during the onset of snot, cough, or sore throat. It typically resolves issues within three days. Take 2-3 times a day, depending on weight—three times if over 80 kg. I endorse this product and assure you of its quality and effectiveness.
Read More
8
Improved immunity
1 people found this helpful
Good to take every day. I take these Ester-C pills daily to help fend off germs at my workplace (a grocery store) where I'm exposed to many people, and someone is often coughing or sneezing. Since I started taking them, I haven't been sick for over nine months now!
Read More
9
Winter protection
The most effective vitamin! Throughout winter, I took Ester C vitamins, including D3 and omega 3, and I didn’t get sick, not even a usual runny nose or chronic cough.
Read More
9
Cough ceased quickly
Awesome! I had a lingering cough, and once I started taking the treatment, the coughing ceased.
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9
Covid precaution
Ester-C with Citrus Bioflavonoids helped my family during the Covid-19 pandemic. Since we began taking it, no colds or chronic coughs have occurred. We’ll keep using it as part of our health precautions.
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Frequently Asked Questions
8
Quick recovery
I struggled to find Vitamin C, but when I started taking it for my runny nose and cough, I felt better within two days. It didn’t upset my stomach, and I highly recommend it for rapid relief.
8
Family usage
We all take Vitamin C during colds. It promotes a quick recovery; at the first sign of illness, I increase the dosage, and voilà —no runny nose or chronic cough!
8
Quick relief
I’ll buy more! This wonderful remedy is particularly effective for quick recovery at the onset of a cold, cough, or fever.
8
Ineffective alternative
I've switched to American Health Ester-C after Solgar ran out, but I found it less effective for my immune system. I suffered from a chronic cough for six weeks until I returned to my Solgar brand, which I will continue to purchase in the future.
9
Winter protection
The most effective vitamin! Throughout winter, I took Ester C vitamins, including D3 and omega 3, and I didn’t get sick, not even a usual runny nose or chronic cough.
8
Nutritional aid
Whenever I have a sore throat, I use this to recover quicker. When combined with other supplements, fever and cough improve rapidly. It's highly effective nutrition, especially great for children averse to medicine.
9
Effective treatment
4 people found this helpful
An excellent vitamin for those knowledgeable about it. I recommend a dosage of 5 grams during the onset of snot, cough, or sore throat. It typically resolves issues within three days. Take 2-3 times a day, depending on weight—three times if over 80 kg. I endorse this product and assure you of its quality and effectiveness.
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