Last update
6/13/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Moderately Good
Based on 5 Reviews
7.3
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
Great for allergy sufferers
Excellent! This vitamin C is high-quality and suitable for allergy sufferers.
Read More
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.
Read More
9
Helps with allergies
Very beneficial, as it alleviates my allergy symptoms and aids in digestion. It may also enhance my metabolism.
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 5 Reviews
7.3
- All Reviews
- Positive Reviews
- Negative Reviews
9
Great for allergy sufferers
Excellent! This vitamin C is high-quality and suitable for allergy sufferers.
Read More
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.
Read More
9
Helps with allergies
Very beneficial, as it alleviates my allergy symptoms and aids in digestion. It may also enhance my metabolism.
Read More
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.
Read More
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.
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.
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. 10.1038/s41598-025-91830-2
