Overview
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 8 Reviews
8.5
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
Niacin
500 mg
3,125%
Most Useful Reviews
10
Pain relief noted
13 people found this helpful
I have a heart problem and experienced pain in my heart. After visiting the hospital for tests and X-rays, they reported that my results were fine. However, after taking niacin, the pain disappeared from the very first day, and I am extremely happy. Thank you, iHerb, for this product, which you provide with genuine interest and sincerity. 👍👍❤
Read More
9
Improved cholesterol
1 people found this helpful
Excellent! I have been using 21st Century Niacin Extended Release for several months, and it is an exceptional product. Each tablet has 500 mg of niacin and releases gradually, which helps avoid adverse effects such as migraines or high blood pressure. Since taking niacin, I have noticed positive changes in my health, including lower cholesterol levels and improved metabolism. I recommend 21st Century Niacin Extended Release for heart health.
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7.5
Satisfied results
3 people found this helpful
I take niacin to support heart and nervous system health. I am completely satisfied with the price and quality of 21st Century. Although I hesitated initially, I take two capsules each morning for a month and then have a break. I've been pleased with the results!
Read More
User Reviews
USERS' SCORE
Good
Based on 8 Reviews
8.5
- All Reviews
- Positive Reviews
- Negative Reviews
10
Pain relief noted
13 people found this helpful
I have a heart problem and experienced pain in my heart. After visiting the hospital for tests and X-rays, they reported that my results were fine. However, after taking niacin, the pain disappeared from the very first day, and I am extremely happy. Thank you, iHerb, for this product, which you provide with genuine interest and sincerity. 👍👍❤
Read More
9
Improved cholesterol
1 people found this helpful
Excellent! I have been using 21st Century Niacin Extended Release for several months, and it is an exceptional product. Each tablet has 500 mg of niacin and releases gradually, which helps avoid adverse effects such as migraines or high blood pressure. Since taking niacin, I have noticed positive changes in my health, including lower cholesterol levels and improved metabolism. I recommend 21st Century Niacin Extended Release for heart health.
Read More
7.5
Satisfied results
3 people found this helpful
I take niacin to support heart and nervous system health. I am completely satisfied with the price and quality of 21st Century. Although I hesitated initially, I take two capsules each morning for a month and then have a break. I've been pleased with the results!
Read More
7.5
Nerve calming
2 people found this helpful
My mother takes niacin for her heart pain and high blood pressure. After starting, her nerves calmed down, and her heartbeat no longer troubles her.
Read More
7.5
Cardiovascular aid
1 people found this helpful
My doctor advised taking Vitamin B3 (niacin) for cardiovascular disease as it effectively lowers blood cholesterol levels. I opted for 21st Century due to its affordability, and I am pleased with the results. It's best to take this supplement under a doctor's guidance.
Read More
Frequently Asked Questions
10
Pain relief noted
13 people found this helpful
I have a heart problem and experienced pain in my heart. After visiting the hospital for tests and X-rays, they reported that my results were fine. However, after taking niacin, the pain disappeared from the very first day, and I am extremely happy. Thank you, iHerb, for this product, which you provide with genuine interest and sincerity. 👍👍❤
9
Improved cholesterol
1 people found this helpful
Excellent! I have been using 21st Century Niacin Extended Release for several months, and it is an exceptional product. Each tablet has 500 mg of niacin and releases gradually, which helps avoid adverse effects such as migraines or high blood pressure. Since taking niacin, I have noticed positive changes in my health, including lower cholesterol levels and improved metabolism. I recommend 21st Century Niacin Extended Release for heart health.
7.5
Satisfied results
3 people found this helpful
I take niacin to support heart and nervous system health. I am completely satisfied with the price and quality of 21st Century. Although I hesitated initially, I take two capsules each morning for a month and then have a break. I've been pleased with the results!
7.5
Cardiovascular aid
1 people found this helpful
My doctor advised taking Vitamin B3 (niacin) for cardiovascular disease as it effectively lowers blood cholesterol levels. I opted for 21st Century due to its affordability, and I am pleased with the results. It's best to take this supplement under a doctor's guidance.
7.5
Nerve calming
2 people found this helpful
My mother takes niacin for her heart pain and high blood pressure. After starting, her nerves calmed down, and her heartbeat no longer troubles her.
7.5
Sustained release
21st Century Niacin Prolonged Release contains niacin (vitamin B3) and is useful for maintaining heart health and normal metabolism. The sustained release helps provide consistent effects over time. Consulting a doctor before taking large doses of niacin is advisable.
9
Prevention effectiveness
The effectiveness of niacin in preventing death and combating cardiovascular disease is notable.
