Customer Ratings & Reviews

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4.9

Based on 54,468 ratings

49,604

3,613

866

207

178

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What customers say

(10,412)

iHerb Customer

Posted on 9/01/2026

Australia

effective

Verified Purchase

These 5 in 1 magnesium tablets seem effective and the ingredients are a good combination and good quality, since taking them my leg cramps have eased and are less frequent, only criticism is I find them hard to swallow, so I have to break them in half. Im happy that they contain no wheat, yeast,dairy,eggs,gluten,soy and no preservatives artificial ingredients, colours or flavours.

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Ann

Silver

Posted on 12/11/2025

Australia

137

Source Naturals, Ultra-Mag™, 120 Tablets

Verified Purchase

I really like Source Naturals Ultra-Mag. It is a high-efficiency blend of five highly bioavailable magnesium forms and it also includes vitamin B6.It helps relax my muscles and I sleep extremely well when I am taking Source Naturals Ultraa-Mag. It is a quality product, the ingredients are pure and I would not be without it.

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Dnipro

Posted on 11/10/2025

Germany

Excellent!

Verified Purchase

+ I've been taking it for 2 weeks and I've almost no sleep problems anymore. My dreams are perfect and I have real deep sleep phases! I don't feel as tired as I did when I was early. I've been getting a lot of sleep and I've become calmer - I don't perceive shaheeds and kabs like that anymore - the tablets are simply very big and not easy to swallow.

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Oleg

Posted on 27/06/2026

United States

Excellent magnesium complex

Verified Purchase

I chose Ultra Mag for its combination of several forms of magnesium and vitamin B6. The tablets are quite large, but easy to swallow. The quality is excellent, the ingredients meet all standards, and the benefits are clear: my sleep has improved, and muscle tension and cramps have gone away. A 120-tablet pack lasts a long time, making it a great value.

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Starkstas

Posted on 16/06/2026

Germany

Ultra Mag (magnesium complex)

Verified Purchase

Ultra Mag (magnesium complex) is a high-quality supplement with a balanced composition and high-quality ingredients. Convenient capsule size, practical packaging, and a neutral flavor. Supports muscle health, the nervous system, sleep, and recovery during regular exercise and an active lifestyle. A good magnesium complex for daily use with noticeable benefits.

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Anna Stryukov

Silver

Posted on 15/04/2026

Ukraine

273

351

299

346

everything is fine

Verified Purchase

💙💛 good composition. I like everything. large packaging - lasts a long time. good buy. decent quality. I trust the brand. good effect on muscles - the tick disappears. what I didn't like - large capsules in size, for me. sensitive stomach is fine. I take it on an empty stomach - everything is fine.

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iHerbJuliya

Posted on 12/03/2026

Ukraine

A good magnesium complex with several forms

Verified Purchase

I liked this magnesium complex from Source Naturals. It contains several forms of magnesium (citrate, glycinate, malate, etc.), so it's easily absorbed and gentle. I take it in the evening—it helps me relax and fall asleep easier, and my muscle tension has also decreased. The tablets are medium-sized and easy on the stomach. The ratio of ingredients to quantity is good—120 tablets last a long time.

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Irina

Posted on 28/02/2026

Ukraine

Ultra-mag

Verified Purchase

The quality of the product is excellent. It calms the nervous system very well. Excellent sleep aid. After sleep, I feel completely well rested. The ingredients are well chosen. The size is a bit large. You need to wash it down with plenty of water. I've been taking this magnesium supplement for two months, then take a break. The packaging is convenient. The benefits are noticeable. I sleep very well. The taste is neutral.

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iHerbCustomer

Posted on 18/01/2026

Germany

Source Naturals Ultra Mag Magnesium that really calms

Verified Purchase

I really liked this magnesium; the effect is gentle and noticeable. I began to relax better in the evenings, sleep more soundly, and feel less tense and irritable. It helps with muscle tension and fatigue after exercise. The formula, with several forms of magnesium, is convenient, and absorption is good. The bottle lasts a long time, and the brand's quality is excellent.

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iHerbCustomer

Posted on 20/12/2025

United States

A great magnesium supplement for relaxation 💙✨

Verified Purchase

I really like this Ultra-Mag! The quality and formula are impressive, and the benefits are noticeable 💊. I usually take it in the evening, and it helps relax my muscles and calm my nerves after a long day 😌💆‍♀️. The tablets are a convenient size, easy to take, and there’s no strong smell 👍. The packaging is practical, and I definitely feel a difference — my sleep has become more restful, and muscle tension happens less often 🌙😴. Overall, it’s a great choice if you want an effective and reliable magnesium supplement 💪💙✨

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