Page 1 - Reviews - 21st Century, Magnesium, 250 Tablets - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.7
Based on 72,854 ratings
57,768
9,175
4,056
1,170
685
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What customers say
Customers are highly satisfied with this magnesium supplement, praising its excellent quality and effective results. The product is noted for its high-quality ingredients, beneficial effects on muscle relaxation, sleep improvement, and overall calmness. Users appreciate the good value for money, citing the large quantity and affordable price as significant advantages. The packaging is frequently described as stylish, compact, and visually appealing. Many customers find the tablets easy to swallow due to their small size and neutral taste, although a few mention they might be challenging for those who struggle with pills. The supplement is free from unnecessary additives, making it suitable for individuals with specific dietary needs. Regular users report noticeable improvements in muscle tension relief and better sleep quality. Overall, the product receives strong recommendations for its effectiveness and efficient delivery service.
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AhmedAyad
Posted on Feb 19, 2026
United Arab Emirates
64
0
2
1
Good price compare to the other companies
Verified purchase
I’ve been taking 21st Century Magnesium 250 mg daily and it’s helped significantly with muscle tension and sleep quality. Tablets are easy to swallow and don’t upset my stomach when taken with food. Good value for the count, and I feel more relaxed overall. Would definitely repurchase.
iHerb customer
Posted on Dec 26, 2025
United Arab Emirates
40
21
0
0
Good magnesium for relaxation and muscle support
Verified purchase
Good magnesium for relaxation and muscle support Verified purchase Rewarded review (ⅰ This 21st Century Magnesium supplement is great for helping with muscle relaxation and better sleep. I take one tablet in the evening, and it really helps reduce muscle tension after workouts. The tablets are easy to swallow, and the bottle lasts a long time. Excellent value for the price and a dependable daily supplement.
6a9f14c8-bb83-4f98-b539-9eff7c983f0f
Gayane
Silver
Posted on Apr 16, 2026
Armenia
145
17
0
11
5
Verified purchase
The scent is so pretty, the use is helpful, the quality is great, the size is great, the age is good, the package is very nice, the benefit is very nice, the composition is wow, the hair looks amazing, the scalp is so good, the sensitive is just perfect, the moisturize is excellent. I use it and saw the result that was really perfect.
Nicola-Elias
Gold
Posted on Mar 30, 2026
Israel
492
64
3
101
good
Verified purchase
providing a good supply for daily use. The main ingredient is magnesium oxide, known for supporting muscle function, heart health, and bone strength. The tablets are small and smooth, with a neutral taste that's easy to swallow and doesn't leave any aftertaste. I appreciate that the formula is gluten-free, sugar-free, and contains no artificial flavors. After regular use, I've noticed less muscle tension and improved
Nicola-Elias
Gold
Posted on Mar 30, 2026
Israel
492
64
3
101
good
Verified purchase
providing a good supply for daily use. The main ingredient is magnesium oxide, known for supporting muscle function, heart health, and bone strength. The tablets are small and smooth, with a neutral taste that's easy to swallow and doesn't leave any aftertaste. I appreciate that the formula is gluten-free, sugar-free, and contains no artificial flavors. After regular use, I've noticed less muscle tension and improved
Lisaaa
Silver
Posted on Jan 27, 2026
Kazakhstan
146
8
0
6
Love these vitamins!
Verified purchase
I order it regularly for myself and my family! The quality of ingredients is good, the dosage is enough for daily use! I see the benefits of magnesium staring from 1 week of usage. So now I do not have any problems with sleep, my muscles receive enough relax. Also my dad said that problems with his joints went away!
iHerb customer
Posted on Dec 16, 2025
Israel
1
1
0
1
Its great
Verified purchase
Its really good and does the job quality is good and the size is really big. Came with secure packaging and i did feel really better the next day of taking magnesium. You should buy one your self Also it makes you sleep better. And no it doesnt taste like anything
18128d1f-af1b-4e3d-ade1-ce8fd97452be
kingsaiajay
Posted on Oct 25, 2025
India
14
4
0
2
Good magnesium for relaxation and muscle support
Verified purchase
This 21st Century Magnesium supplement is great for helping with muscle relaxation and better sleep. I take one tablet in the evening, and it really helps reduce muscle tension after workouts. The tablets are easy to swallow, and the bottle lasts a long time. Excellent value for the price and a dependable daily supplement.
0d5f7c6e-e67e-4d86-95ee-5d77868601a5
Rehabgmd
Silver
Posted on Mar 30, 2026
Saudi Arabia
151
0
0
6
Verified purchase
Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt! the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered
iHerbCustomer
Gold
Posted on Mar 18, 2026
Philippines
6,135
3
2
257
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!