Last update
3/28/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 9 Reviews
8.5
Supplement Facts
Serving Size: 1/4 Level Teaspoon (1.1 g)
Amount Per Serving
%DV
Vitamin C (Ascorbic Acid)
1.1 g (1,100 mg)
1222%
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
No side effects
3 people found this helpful
Excellent quality! This powder does not cause allergies for my wife, who is often sensitive. It has no side effects and is recommended for those with sensitivities.
Read More
9.5
Amazing results
2 people found this helpful
Living in western Colorado, where elm trees wreak havoc with my allergies, I tried vitamin C crystals on my friend's recommendation. After two weeks of taking one teaspoon daily, my allergies are about 95% gone. It's truly amazing!
Read More
9
Boosts immunity
An excellent product! It works wonders for those sensitive to fillers. It has a pleasant taste and significantly boosts my immune system while helping with allergies.
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 9 Reviews
8.5
- All Reviews
- Positive Reviews
- Negative Reviews
9
No side effects
3 people found this helpful
Excellent quality! This powder does not cause allergies for my wife, who is often sensitive. It has no side effects and is recommended for those with sensitivities.
Read More
9.5
Amazing results
2 people found this helpful
Living in western Colorado, where elm trees wreak havoc with my allergies, I tried vitamin C crystals on my friend's recommendation. After two weeks of taking one teaspoon daily, my allergies are about 95% gone. It's truly amazing!
Read More
9
Boosts immunity
An excellent product! It works wonders for those sensitive to fillers. It has a pleasant taste and significantly boosts my immune system while helping with allergies.
Read More
9
Continued usage
A good vitamin C! I’ve ordered it several times for my family and me on my doctor's advice. We take it during stress or illness, and it tastes great. It doesn’t cause allergies or stomach discomfort, so I will keep using it.
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9
Children enjoy
My children love this vitamin C because of its sour taste; they enjoy drinking it. It doesn’t cause them any allergies. Highly recommend!
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Frequently Asked Questions
7.5
Relieved symptoms
I've used this vitamin C for years. It’s effective in alleviating allergy symptoms, particularly rhinitis.
9
Boosts immunity
An excellent product! It works wonders for those sensitive to fillers. It has a pleasant taste and significantly boosts my immune system while helping with allergies.
7.5
Skin benefits
My skin improved significantly after using this. My allergies have also noted improvement. The powder format is slightly uncomfortable, but the quality is good, and I don’t mind.
9
No side effects
3 people found this helpful
Excellent quality! This powder does not cause allergies for my wife, who is often sensitive. It has no side effects and is recommended for those with sensitivities.
6
Allergy caution
1 people found this helpful
Pure ascorbic acid. The daily dosage is sufficient, making it a great option for supporting health and immunity. However, it can irritate the stomach and cause allergies if overdosed. I find it fine as long as I stick to the recommended amount.
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:
