'
NOW Supplements Calcium Hydroxyapatite Caps
SCIENTIFIC SCORE
Questionable
Based on 2 Researches
6.5
USERS' SCORE
Good
Based on 3 Reviews
8.4
Supplement Facts
Serving Size:  2 Capsules
Amount Per Serving
%DV
Calcium (elemental)(from 2,273 mg MCHA)**
500 mg
38%
Phosphorus (elemental)(from 2,273 mg MCHA)**
200 mg
16%

Top Medical Research Studies

9
Calcium injection aids knee function
Total Knee Conversion Rates and Functional Outcome After Calcium Phosphate Injection for Bone Marrow Lesions of the Knee.
Highly relevant for knee pain
We explored how calcium phosphate (CaP) injections impact knee pain, particularly in patients suffering from osteoarthritis-related bone marrow lesions (OA-BML). In this study, we compared two groups of patients: those who received knee arthroscopy combined with CaP injections and those who had knee arthroscopy for different knee issues.

Our observations showed that patients receiving the CaP injections experienced less frequent conversions to total knee arthroplasty (TKA) when compared to the other group. Notably, within the CaP group, we noticed a significant improvement in their knee injury and functional outcome scores before and after the procedure. However, patients who only underwent knee arthroscopy did not show the same level of improvement.

Overall, we found that adding CaP injections during knee surgery for OA-BML significantly enhanced functional outcomes over traditional surgery alone. This study underscores the potential benefits of CaP treatments in managing knee pain and improving quality of life for those suffering from knee OA.
Read More
4
Calcium does not enhance PRP
Is There a Need for an Exogenous Activator Along with PRP for Early Knee Osteoarthritis? A Triple-Blinded Randomized Control Trial.
Limited impact of calcium treatment
We explored the role of calcium gluconate as an activator alongside platelet-rich plasma (PRP) injections for patients dealing with early knee osteoarthritis. In this study, participants were split into two groups: one received PRP alone, while the other got PRP mixed with calcium gluconate.

Both groups were evaluated over six months for pain relief and overall satisfaction. Interestingly, despite a noticeable decrease in pain and improvement in overall function in both groups, we found no significant differences when comparing the effectiveness of the two treatments.

This led us to conclude that adding calcium gluconate might not provide any extra benefit to PRP injections in managing knee pain for early-stage osteoarthritis, which is quite important for patients considering their treatment options.
Read More

Most Useful Reviews

9.5
Positive family effects
High-quality calcium! I have tried various brands, but this one is my favourite! My joints crunch and ache much less now. I purchased this calcium for my mother, who had a knee injury, and her knee pain has diminished significantly, as well as the crunching. She also noted improvements in her tooth enamel! I'm pleased that this calcium is economical, and I will definitely buy more!
Read More
8.3
Arthritis symptoms vanished
This calcium effectively aids joint pain. I noticed after a week that symptoms of arthritis dissipated. I typically take it in the evening.
Read More
6.8
Joint pain reduction
I finished a jar, and my joint pains have decreased.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 2 Researches
6.5
  • All Researches
9
Calcium injection aids knee function
Total Knee Conversion Rates and Functional Outcome After Calcium Phosphate Injection for Bone Marrow Lesions of the Knee.
Highly relevant for knee pain
We explored how calcium phosphate (CaP) injections impact knee pain, particularly in patients suffering from osteoarthritis-related bone marrow lesions (OA-BML). In this study, we compared two groups of patients: those who received knee arthroscopy combined with CaP injections and those who had knee arthroscopy for different knee issues.

Our observations showed that patients receiving the CaP injections experienced less frequent conversions to total knee arthroplasty (TKA) when compared to the other group. Notably, within the CaP group, we noticed a significant improvement in their knee injury and functional outcome scores before and after the procedure. However, patients who only underwent knee arthroscopy did not show the same level of improvement.

Overall, we found that adding CaP injections during knee surgery for OA-BML significantly enhanced functional outcomes over traditional surgery alone. This study underscores the potential benefits of CaP treatments in managing knee pain and improving quality of life for those suffering from knee OA.
Read More
4
Calcium does not enhance PRP
Is There a Need for an Exogenous Activator Along with PRP for Early Knee Osteoarthritis? A Triple-Blinded Randomized Control Trial.
Limited impact of calcium treatment
We explored the role of calcium gluconate as an activator alongside platelet-rich plasma (PRP) injections for patients dealing with early knee osteoarthritis. In this study, participants were split into two groups: one received PRP alone, while the other got PRP mixed with calcium gluconate.

Both groups were evaluated over six months for pain relief and overall satisfaction. Interestingly, despite a noticeable decrease in pain and improvement in overall function in both groups, we found no significant differences when comparing the effectiveness of the two treatments.

This led us to conclude that adding calcium gluconate might not provide any extra benefit to PRP injections in managing knee pain for early-stage osteoarthritis, which is quite important for patients considering their treatment options.
Read More

User Reviews

USERS' SCORE
Good
Based on 3 Reviews
8.4
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Positive family effects
High-quality calcium! I have tried various brands, but this one is my favourite! My joints crunch and ache much less now. I purchased this calcium for my mother, who had a knee injury, and her knee pain has diminished significantly, as well as the crunching. She also noted improvements in her tooth enamel! I'm pleased that this calcium is economical, and I will definitely buy more!
Read More
8.3
Arthritis symptoms vanished
This calcium effectively aids joint pain. I noticed after a week that symptoms of arthritis dissipated. I typically take it in the evening.
6.8
Joint pain reduction
I finished a jar, and my joint pains have decreased.
image