Last update
3/9/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 5 Reviews
8.5
Supplement Facts
Serving Size: One Capsule
Amount Per Serving
%DV
One Capsule Contains:
Amount Per Serving
% DV
Vitamin C (as Ascorbic Acid)
500 mg
556%
Citrus Bioflavonoids
75 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
Effective against nasal allergies
1 people found this helpful
Effective in relieving nasal allergies. I take one before bed and wake up the next day without needing to blow my nose.
Read More
9
No allergies experienced
Super! This product’s quality is excellent, with perfectly selected ingredients. I had no allergies or negative reactions. The large package lasts a long time and the dietary supplement arrived quickly and undamaged. I’ve noticed improvements in bowel function and metabolism, with results after just a week. My nervous system feels more stable, and I’m less anxious.
Read More
7.5
Reduced allergies substantially
1 people found this helpful
Thorne is well-known for its quality and ingredients. This product has increased my immunity and significantly reduced the allergies I was experiencing along with my general weakness.
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
Good
Based on 5 Reviews
8.5
- All Reviews
- Positive Reviews
- Negative Reviews
9
Effective against nasal allergies
1 people found this helpful
Effective in relieving nasal allergies. I take one before bed and wake up the next day without needing to blow my nose.
Read More
9
No allergies experienced
Super! This product’s quality is excellent, with perfectly selected ingredients. I had no allergies or negative reactions. The large package lasts a long time and the dietary supplement arrived quickly and undamaged. I’ve noticed improvements in bowel function and metabolism, with results after just a week. My nervous system feels more stable, and I’m less anxious.
Read More
7.5
Reduced allergies substantially
1 people found this helpful
Thorne is well-known for its quality and ingredients. This product has increased my immunity and significantly reduced the allergies I was experiencing along with my general weakness.
Read More
9
Best for allergies
Vitamin C with bioflavonoids is touted as the best vitamin C! It aids in alleviating allergies, enhances the effects of vitamin E, helps iron absorption, and boasts antioxidant properties.
Read More
7.5
Eases seasonal allergies
I was drawn to the presence of citrus bioflavonoids, which help remove toxins from the body. This is essential for my family. Taking this product makes it much easier to endure seasonal allergies. I wish health to everyone who reads this!
Read More
Frequently Asked Questions
9
Effective against nasal allergies
1 people found this helpful
Effective in relieving nasal allergies. I take one before bed and wake up the next day without needing to blow my nose.
9
No allergies experienced
Super! This product’s quality is excellent, with perfectly selected ingredients. I had no allergies or negative reactions. The large package lasts a long time and the dietary supplement arrived quickly and undamaged. I’ve noticed improvements in bowel function and metabolism, with results after just a week. My nervous system feels more stable, and I’m less anxious.
7.5
Reduced allergies substantially
1 people found this helpful
Thorne is well-known for its quality and ingredients. This product has increased my immunity and significantly reduced the allergies I was experiencing along with my general weakness.
9
Best for allergies
Vitamin C with bioflavonoids is touted as the best vitamin C! It aids in alleviating allergies, enhances the effects of vitamin E, helps iron absorption, and boasts antioxidant properties.
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
Data last updated:
