Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Moderately Good
Based on 11 Reviews
7.5
Supplement Facts
Serving Size: 1 Vegetarian Tablet
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 sinensis) (fruit), Sweet Orange, Tangerine, Lime, Lemon, Acerola, Rutin, Hesperidin Complex (Citrus spp.) (fruit), Naturally Occurring Vitamin C Metabolites
200 mg
**
Top Medical Research Studies
8
We conducted a thorough evaluation of how vitamin C, when combined with pleuran, impacts asthma control and respiratory issues in children suffering from perennial asthma. The study was meticulously designed as a double-blind, placebo-controlled trial involving 230 children aged 7 to 17 years. This means that neither the participants nor the researchers knew who was receiving the active treatment or the placebo, ensuring the findings were reliable.
The results were promising, especially for children under 12 years. They showed significant improvements in asthma control compared to those receiving only the placebo treatment. Meanwhile, older children (12 years and above) experienced fewer respiratory infections with the combination treatment. Overall, by the end of the 48 weeks, a majority of children on the pleuran and vitamin C treatment reported better asthma control compared to those on the placebo.
While the combination of pleuran and vitamin C was indeed beneficial for managing asthma, we must note that the study did not specifically isolate the effect of vitamin C alone on allergies or asthma. Thus, it is hard to draw definitive conclusions about vitamin C's effectiveness independently from pleuran. However, the approach suggested that using these supplements together could offer a helpful boost in managing asthma symptoms.
The results were promising, especially for children under 12 years. They showed significant improvements in asthma control compared to those receiving only the placebo treatment. Meanwhile, older children (12 years and above) experienced fewer respiratory infections with the combination treatment. Overall, by the end of the 48 weeks, a majority of children on the pleuran and vitamin C treatment reported better asthma control compared to those on the placebo.
While the combination of pleuran and vitamin C was indeed beneficial for managing asthma, we must note that the study did not specifically isolate the effect of vitamin C alone on allergies or asthma. Thus, it is hard to draw definitive conclusions about vitamin C's effectiveness independently from pleuran. However, the approach suggested that using these supplements together could offer a helpful boost in managing asthma symptoms.
Read More
Most Useful Reviews
9
Stopped gum bleeding
11 people found this helpful
Favourite vitamin C. I take it regularly, and when I feel a cold coming on, I increase the dosage to 2-4 tablets. It's convenient, and I can break the pills if necessary. It doesn't upset my stomach or cause nausea, and I have experienced no allergies. Notably, my gums have stopped bleeding when brushing my teeth.
Read More
9
No allergies noted
2 people found this helpful
Excellent digestible form. Even when taking more than the recommended amount, my body eliminates any excess without causing allergies or poisoning. I have been using it for years, often at the first signs of malaise, and have found it helpful in preventing illness.
Read More
9
No side effects
I have been purchasing Ester-C for two years. I appreciate its price and quality. It doesn't cause allergies or gastrointestinal discomfort. I can easily split the tablets for prevention or take 1-2 when ill. This is a regular purchase for me!
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
- All Researches
8
We conducted a thorough evaluation of how vitamin C, when combined with pleuran, impacts asthma control and respiratory issues in children suffering from perennial asthma. The study was meticulously designed as a double-blind, placebo-controlled trial involving 230 children aged 7 to 17 years. This means that neither the participants nor the researchers knew who was receiving the active treatment or the placebo, ensuring the findings were reliable.
The results were promising, especially for children under 12 years. They showed significant improvements in asthma control compared to those receiving only the placebo treatment. Meanwhile, older children (12 years and above) experienced fewer respiratory infections with the combination treatment. Overall, by the end of the 48 weeks, a majority of children on the pleuran and vitamin C treatment reported better asthma control compared to those on the placebo.
While the combination of pleuran and vitamin C was indeed beneficial for managing asthma, we must note that the study did not specifically isolate the effect of vitamin C alone on allergies or asthma. Thus, it is hard to draw definitive conclusions about vitamin C's effectiveness independently from pleuran. However, the approach suggested that using these supplements together could offer a helpful boost in managing asthma symptoms.
The results were promising, especially for children under 12 years. They showed significant improvements in asthma control compared to those receiving only the placebo treatment. Meanwhile, older children (12 years and above) experienced fewer respiratory infections with the combination treatment. Overall, by the end of the 48 weeks, a majority of children on the pleuran and vitamin C treatment reported better asthma control compared to those on the placebo.
While the combination of pleuran and vitamin C was indeed beneficial for managing asthma, we must note that the study did not specifically isolate the effect of vitamin C alone on allergies or asthma. Thus, it is hard to draw definitive conclusions about vitamin C's effectiveness independently from pleuran. However, the approach suggested that using these supplements together could offer a helpful boost in managing asthma symptoms.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 11 Reviews
7.5
- All Reviews
- Positive Reviews
- Negative Reviews
9
Stopped gum bleeding
11 people found this helpful
Favourite vitamin C. I take it regularly, and when I feel a cold coming on, I increase the dosage to 2-4 tablets. It's convenient, and I can break the pills if necessary. It doesn't upset my stomach or cause nausea, and I have experienced no allergies. Notably, my gums have stopped bleeding when brushing my teeth.
Read More
9
No allergies noted
2 people found this helpful
Excellent digestible form. Even when taking more than the recommended amount, my body eliminates any excess without causing allergies or poisoning. I have been using it for years, often at the first signs of malaise, and have found it helpful in preventing illness.
Read More
9
No side effects
I have been purchasing Ester-C for two years. I appreciate its price and quality. It doesn't cause allergies or gastrointestinal discomfort. I can easily split the tablets for prevention or take 1-2 when ill. This is a regular purchase for me!
Read More
9
Effective against colds
I appreciate this Ester-C dosage, especially when combined with zinc during the cold season. It helps protect me from seasonal illnesses. There’s no stomach irritation or allergies. I highly recommend it!
Read More
9
Great for allergy sufferers
Excellent! This vitamin C is high-quality and suitable for allergy sufferers.
Read More
Frequently Asked Questions
9
No gastrointestinal issues
The doctor advised me to take vitamin C, and I chose this one. It has not caused any allergies or affected my gastrointestinal system. I've been taking it for a couple of months and, while unsure of its impact, I have not fallen ill and my skin condition has improved.
9
Helps with allergies
Very beneficial, as it alleviates my allergy symptoms and aids in digestion. It may also enhance my metabolism.
0
Individual reactions
3 people found this helpful
I bought this for my husband, but unfortunately it did not fit and caused allergies. He gave it to a colleague, and he seems to be fine with it, so it's very individual.
0
Not suitable for husband
This formula is good, but caution is needed if you have a tendency towards allergies: my husband's face turns red after taking it, even though he is not allergic. It might be too strong for some people.
9
Stopped gum bleeding
11 people found this helpful
Favourite vitamin C. I take it regularly, and when I feel a cold coming on, I increase the dosage to 2-4 tablets. It's convenient, and I can break the pills if necessary. It doesn't upset my stomach or cause nausea, and I have experienced no allergies. Notably, my gums have stopped bleeding when brushing my teeth.
9
Effective against colds
I appreciate this Ester-C dosage, especially when combined with zinc during the cold season. It helps protect me from seasonal illnesses. There’s no stomach irritation or allergies. I highly recommend it!
6
No allergies experienced
A good form of vitamin C in a convenient dosage. It hasn’t caused any allergies, which is a significant benefit. I take it along with iron and zinc, and when the weather gets hot and colds loom, I increase my intake to 3-5 tablets daily. However, the pills are quite large, causing issues for my 10-year-old daughter, so I must find another brand for her.
9
No side effects
I have been purchasing Ester-C for two years. I appreciate its price and quality. It doesn't cause allergies or gastrointestinal discomfort. I can easily split the tablets for prevention or take 1-2 when ill. This is a regular purchase for me!
References
- Jesenak M, Hrubisko M, Chudek J, Bystron J, Rennerova Z, et al. Beneficial effects of pleuran on asthma control and respiratory tract-infection frequency in children with perennial asthma. Sci Rep. 2025;15:7146. doi:10.1038/s41598-025-91830-2
