Last update
5/1/2026
Research Authors

Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 2 Reviews
8.5
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
📅 Last updated:

Top Medical Research Studies

8
Vitamin C shows promise against frozen shoulder
In our controlled laboratory study, we aimed to investigate whether vitamin C could help prevent frozen shoulder, particularly the secondary type that often occurs after trauma or surgery. We created a shoulder contracture model using Sprague-Dawley rats, which involved immobilizing their right shoulder.

Our experimental group, consisting of eight rats, received vitamin C orally, while a control group of nine rats did not receive vitamin C. We primarily measured the thickness of the joint capsule at the shoulder using magnetic resonance imaging (MRI).

The results were promising, indicating that vitamin C may reduce the thickening of the joint capsule linked to secondary frozen shoulder. Although we also conducted histological examinations, we did not perform statistical analysis on those findings due to variability in our cutting techniques.

This preclinical study suggests that vitamin C could be a valuable, non-invasive way to prevent secondary frozen shoulder, particularly in situations involving surgery or immobilization. However, more research is needed to determine its effects on humans and establish proper dosage guidelines.
Read More

Most Useful Reviews

9
Strengthened immunity
This greatly supports my immunity. I have been taking it for six months, which has boosted my body's resistance to viruses and colds. If I feel chilly outdoors, I take one capsule in the evening, which means I avoid any runny nose or cough. I highly recommend this product, as it has worked well for me.
Read More
7.5
Improved physical condition
When I ceased taking it, I found it difficult to wake up. However, upon starting it again, my physical condition, including stiff shoulders and fatigue, saw significant improvement. It has been perfect for me.
Read More

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Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
  • All Researches
8
Vitamin C shows promise against frozen shoulder
In our controlled laboratory study, we aimed to investigate whether vitamin C could help prevent frozen shoulder, particularly the secondary type that often occurs after trauma or surgery. We created a shoulder contracture model using Sprague-Dawley rats, which involved immobilizing their right shoulder.

Our experimental group, consisting of eight rats, received vitamin C orally, while a control group of nine rats did not receive vitamin C. We primarily measured the thickness of the joint capsule at the shoulder using magnetic resonance imaging (MRI).

The results were promising, indicating that vitamin C may reduce the thickening of the joint capsule linked to secondary frozen shoulder. Although we also conducted histological examinations, we did not perform statistical analysis on those findings due to variability in our cutting techniques.

This preclinical study suggests that vitamin C could be a valuable, non-invasive way to prevent secondary frozen shoulder, particularly in situations involving surgery or immobilization. However, more research is needed to determine its effects on humans and establish proper dosage guidelines.
Read More

User Reviews

USERS' SCORE
Good
Based on 2 Reviews
8.5
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Strengthened immunity
This greatly supports my immunity. I have been taking it for six months, which has boosted my body's resistance to viruses and colds. If I feel chilly outdoors, I take one capsule in the evening, which means I avoid any runny nose or cough. I highly recommend this product, as it has worked well for me.
Read More
7.5
Improved physical condition
When I ceased taking it, I found it difficult to wake up. However, upon starting it again, my physical condition, including stiff shoulders and fatigue, saw significant improvement. It has been perfect for me.
Read More

Frequently Asked Questions

7.5
Improved physical condition
When I ceased taking it, I found it difficult to wake up. However, upon starting it again, my physical condition, including stiff shoulders and fatigue, saw significant improvement. It has been perfect for me.
9
Strengthened immunity
This greatly supports my immunity. I have been taking it for six months, which has boosted my body's resistance to viruses and colds. If I feel chilly outdoors, I take one capsule in the evening, which means I avoid any runny nose or cough. I highly recommend this product, as it has worked well for me.
8
Vitamin C shows promise against frozen shoulder
In our controlled laboratory study, we aimed to investigate whether vitamin C could help prevent frozen shoulder, particularly the secondary type that often occurs after trauma or surgery. We created a shoulder contracture model using Sprague-Dawley rats, which involved immobilizing their right shoulder.

Our experimental group, consisting of eight rats, received vitamin C orally, while a control group of nine rats did not receive vitamin C. We primarily measured the thickness of the joint capsule at the shoulder using magnetic resonance imaging (MRI).

The results were promising, indicating that vitamin C may reduce the thickening of the joint capsule linked to secondary frozen shoulder. Although we also conducted histological examinations, we did not perform statistical analysis on those findings due to variability in our cutting techniques.

This preclinical study suggests that vitamin C could be a valuable, non-invasive way to prevent secondary frozen shoulder, particularly in situations involving surgery or immobilization. However, more research is needed to determine its effects on humans and establish proper dosage guidelines.

References

  1. Feusi O, Fleischmann T, Waschkies C, Pape HC, Werner CML, et al. Vitamin C as a Potential Prophylactic Measure Against Frozen Shoulder in an In Vivo Shoulder Contracture Animal Model. Am J Sports Med. 2023;51:2041. 10.1177/03635465231172192
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