Last update
3/23/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 10 Reviews
8.2
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
Vitamin C (as Ascorbic Acid)
1 g (1,000 mg)
1111%
Rose Hips Powder (Rosa canina) (fruit)
25 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 vitamin C
21 people found this helpful
A life saver for people with allergic rhinitis! I suffered for years until I discovered that Vitamin C was the remedy for me. I prefer drinking freshly squeezed orange or grapefruit juice, but it’s impractical every day. When my nose starts to feel stuffed, I take a couple of Vitamin C tablets and feel better the next day. If I have a terrible sinus headache, I take 3 or 4 tablets at night and wake up headache-free. This vitamin was incredibly helpful during our January trip to Switzerland.
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9
No more allergies
2 people found this helpful
My mum appears stronger, and I feel the same. We usually suffer from allergies, particularly runny noses in the morning and before bed. Since taking C-1000, we feel fresh and have no more runny noses. I believe it also aids in skin brightness. Highly recommend the sustained release formula.
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10
Stronger immunity
This supplement has been a great help for my allergies. Taking Vitamin C strengthens my immune system so much that I hardly experience any allergies now.
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 10 Reviews
8.2
- All Reviews
- Positive Reviews
- Negative Reviews
9
Effective vitamin C
21 people found this helpful
A life saver for people with allergic rhinitis! I suffered for years until I discovered that Vitamin C was the remedy for me. I prefer drinking freshly squeezed orange or grapefruit juice, but it’s impractical every day. When my nose starts to feel stuffed, I take a couple of Vitamin C tablets and feel better the next day. If I have a terrible sinus headache, I take 3 or 4 tablets at night and wake up headache-free. This vitamin was incredibly helpful during our January trip to Switzerland.
Read More
9
No more allergies
2 people found this helpful
My mum appears stronger, and I feel the same. We usually suffer from allergies, particularly runny noses in the morning and before bed. Since taking C-1000, we feel fresh and have no more runny noses. I believe it also aids in skin brightness. Highly recommend the sustained release formula.
Read More
10
Stronger immunity
This supplement has been a great help for my allergies. Taking Vitamin C strengthens my immune system so much that I hardly experience any allergies now.
Read More
7.5
Strong immune support
3 people found this helpful
They really work. Even though these tablets are large for my liking, they absorb well. I’m not sure how the absorption process works, but after taking them for about a month, I’ve definitely noticed my skin glowing and I usually suffer from bad sinuses or allergies around this time of year, yet I'm feeling quite well so far. I feel a strong immune system with no signs of getting ill at all. I also want to thank this company for refunding a price drop without hesitation.
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7.5
Good for allergies
1 people found this helpful
Good for allergies.
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Frequently Asked Questions
9
No more allergies
2 people found this helpful
My mum appears stronger, and I feel the same. We usually suffer from allergies, particularly runny noses in the morning and before bed. Since taking C-1000, we feel fresh and have no more runny noses. I believe it also aids in skin brightness. Highly recommend the sustained release formula.
10
Stronger immunity
This supplement has been a great help for my allergies. Taking Vitamin C strengthens my immune system so much that I hardly experience any allergies now.
0
Negative reaction
I usually don’t have allergic reactions to vitamin C, but this product caused itching and stomach issues. While it boosts immunity, the side effects were troubling.
7.5
No allergic reactions
Excellent vitamin C! A dosage of 1000mg is optimal for restoring the body. These tablets do not trigger allergies. I recommend them to everyone.
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
