Last update
3/28/2026
Reviewed By
Overview
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 74 Reviews
8
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
Immune boost claimed
25 people found this helpful
This Vitamin C with bioflavonoids amplifies the beneficial effects. I combine it with collagen and take it regularly during colds. It enhances the production of white blood cells and helps combat viruses. It's essential for immunity and general health.
Read More
9
Effective cold treatment
9 people found this helpful
I found Ester-C crucial for treating acute respiratory infections, especially in a regimen I discovered online. I took 500 mg every two hours with zinc for maximum effect. By the second day, my throat pain had improved, and I felt quite well. This method worked effectively, and I recovered quickly. I advise everyone to keep it handy for illnesses.
Read More
9
Headache relief
5 people found this helpful
Vitamin C has been a game changer for me. Since my teenage years, I dealt with headaches, particularly after being in crowded, low-oxygen environments. I began taking vitamin C to boost my immunity and discovered it helps oxygen reach my cells, including my brain. My headaches have diminished and ultimately disappeared entirely. I consume vitamin C daily, primarily in powdered form, and I haven’t been ill for years. I trust this will continue to strengthen my immune system, especially during the pandemic.
Read More
User Reviews
USERS' SCORE
Good
Based on 74 Reviews
8
- All Reviews
- Positive Reviews
- Negative Reviews
9
Immune boost claimed
25 people found this helpful
This Vitamin C with bioflavonoids amplifies the beneficial effects. I combine it with collagen and take it regularly during colds. It enhances the production of white blood cells and helps combat viruses. It's essential for immunity and general health.
Read More
9
Effective cold treatment
9 people found this helpful
I found Ester-C crucial for treating acute respiratory infections, especially in a regimen I discovered online. I took 500 mg every two hours with zinc for maximum effect. By the second day, my throat pain had improved, and I felt quite well. This method worked effectively, and I recovered quickly. I advise everyone to keep it handy for illnesses.
Read More
9
Headache relief
5 people found this helpful
Vitamin C has been a game changer for me. Since my teenage years, I dealt with headaches, particularly after being in crowded, low-oxygen environments. I began taking vitamin C to boost my immunity and discovered it helps oxygen reach my cells, including my brain. My headaches have diminished and ultimately disappeared entirely. I consume vitamin C daily, primarily in powdered form, and I haven’t been ill for years. I trust this will continue to strengthen my immune system, especially during the pandemic.
Read More
9
Quick recovery
4 people found this helpful
I often overlook vitamin C, but after a recent cold, I realised its importance. When I felt a headache and sore throat, I began taking one tablet every two hours. Amazingly, by the following day, my sore throat and headaches had nearly vanished. Vitamin C effectively alleviated all my symptoms. This experience was unprecedented, and I’ve now incorporated vitamin C as a proactive measure in my health routine.
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9
Rapid cold relief
3 people found this helpful
I absolutely adore this vitamin C! I've purchased it more than three times. The moment I feel a cold coming on, I take 2 tablets, and within 30 minutes, all signs of discomfort vanish! It's unbeatable against cold viruses! I am extremely grateful! Compared to other brands, this is the quickest acting vitamin C I’ve ever used! It’s incredibly potent and has left a lasting impression! The esterified form doesn’t upset my stomach even on an empty stomach! A must-have for my family! I love using it daily!
Read More
Frequently Asked Questions
9
Effective cold treatment
9 people found this helpful
I found Ester-C crucial for treating acute respiratory infections, especially in a regimen I discovered online. I took 500 mg every two hours with zinc for maximum effect. By the second day, my throat pain had improved, and I felt quite well. This method worked effectively, and I recovered quickly. I advise everyone to keep it handy for illnesses.
9
Rapid cold relief
3 people found this helpful
I absolutely adore this vitamin C! I've purchased it more than three times. The moment I feel a cold coming on, I take 2 tablets, and within 30 minutes, all signs of discomfort vanish! It's unbeatable against cold viruses! I am extremely grateful! Compared to other brands, this is the quickest acting vitamin C I’ve ever used! It’s incredibly potent and has left a lasting impression! The esterified form doesn’t upset my stomach even on an empty stomach! A must-have for my family! I love using it daily!
9
Headache relief
5 people found this helpful
Vitamin C has been a game changer for me. Since my teenage years, I dealt with headaches, particularly after being in crowded, low-oxygen environments. I began taking vitamin C to boost my immunity and discovered it helps oxygen reach my cells, including my brain. My headaches have diminished and ultimately disappeared entirely. I consume vitamin C daily, primarily in powdered form, and I haven’t been ill for years. I trust this will continue to strengthen my immune system, especially during the pandemic.
9
Immune boost claimed
25 people found this helpful
This Vitamin C with bioflavonoids amplifies the beneficial effects. I combine it with collagen and take it regularly during colds. It enhances the production of white blood cells and helps combat viruses. It's essential for immunity and general health.
7.5
Effective for illness
6 people found this helpful
I discovered this vitamin C while taking iron for better absorption. These medium-sized capsules have a chalky, pleasant smell, which I enjoy. Initially, I took one capsule daily, but during a slight malaise at the onset of a cold, I increased the dosage to 2 g per day. Remarkably, by the third day, I felt significantly better, and the usual symptoms of cold, rhinitis, and headache had vanished. Typically, these could linger for a week or more. Alongside vitamin C, I took 50 micrograms of zinc, which clearly contributed to my improved health.
9
Preventative measure
This vitamin C works perfectly to prevent illness. At the first symptoms or after contact, I take two capsules with zinc. It has saved me countless times. Highly recommend!
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