Page 1 - Reviews - 21st Century, Calcium 500 + D3, 90 Tablets - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.8
Based on 5,326 ratings
4,571
546
161
29
19
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What customers say
Customers report significant improvements in health, mood, energy levels, and overall quality of life after using this vitamin supplement. Many users highlight increased alertness, better immune system function, and enhanced bone health due to the calcium and vitamin D3 content. The product is praised for its good quality, reasonable price, and ease of consumption. Some users noted it has a positive impact on hair growth and strength. While a few mentioned the presence of artificial colors and other ingredients as a downside, the general consensus is overwhelmingly positive with many recommending it highly.
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English
Translated reviews
iHerb customer
Silver
Posted on Aug 28, 2025
United Arab Emirates
116
34
6
11
Great
Verified purchase
scent use effect quality all are great and gentle on stomach
iHerbCustomer
Posted on Jul 1, 2023
United Arab Emirates
571
0
0
1
Verified purchase
Good quality with perfect dose and good price I ordered and it arrive at time
iHerb customer
Posted on Sep 2, 2025
Bosnia and Herzegovina
10
2
0
0
Review for 21st Century, Calcium 500 + D3, 5 mcg, 90 tablets
Verified purchase
I’ve been using 21st Century Calcium 500 + D3 for a while now, and I’m very satisfied with the results. Each tablet provides a good dose of calcium together with vitamin D3, which helps the body absorb the calcium more effectively. The tablets are easy to swallow, and I haven’t experienced any stomach discomfort or side effects. I also like that the product comes in a practical bottle with 90 tablets, which lasts for a good amount of time and is budget-friendly compared to similar supplements. It’s a reliable choice for anyone who wants to support bone health, especially if you don’t get enough calcium or vitamin D from your diet. Overall, this supplement is a simple, affordable, and effective way to strengthen bones and maintain healthy teeth. I would definitely recommend it to others looking for a daily calcium boost.
iHerb customer
Posted on Aug 31, 2025
Israel
57
38
1
8
Calcium
Verified purchase
Good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good good
0a9c2491-c56e-4f67-b88d-d424c454b4db
iHerb customer
Posted on Nov 10, 2025
Brazil
86
0
4
3
Прекрасно!
Verified purchase
Thank you very much for this product, it suited me, I like the packaging, comfortable and stylish, I will order more of these products, and recommend them to all my friends and relatives! good!!
Didi
Gold
Posted on Oct 2, 2025
United States
1,522
0
0
27
Verified purchase
The supplement’s composition is balanced, the serving frequency is simple, and the ingredient quality is premium. It’s highly recommended and very beneficial for supporting diet and endurance.
iHerbCustomer
Silver
Posted on Sep 7, 2025
United States
159
0
4
10
Promotes Bone and Joint Health
Verified purchase
I take this daily to support my bones and joints. It helps with bone density and overall health, especially with regular exercise. These tablets are easy to take, gentle on the stomach, and effective.
iHerb customer
Gold
Posted on Sep 2, 2025
Philippines
2,171
1
0
53
Verified purchase
Thank you for providing such outstanding supplements! The quality is exceptional, with thoughtfully selected ingredients that offer remarkable health benefits. Your products have made a significant positive impact on my overall well-being. I also appreciate the secure and reliable packaging. Thanks again, iHerb!
iHerb customer
Posted on Aug 28, 2025
Saudi Arabia
69
0
0
0
Verified purchase
It is one of the best products on the market. I liked everything very much, I will recommend it to my friends, thank you for the product
Miranda
Gold
Posted on Nov 6, 2025
Moldova, Republic of
851
0
0
25
Verified purchase
it’s subtle—so the benefits are more long‑term rather than immediate—and I make sure to take them with a meal to help absorption.