Customer Ratings & Reviews

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4.6

Based on 374 ratings

283

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What customers say

(34)

iHerb Customer

Posted on 22/06/2026

Brazil

Good product

Verified Purchase

First and foremost, I consider the packaging important, and they deliver very well on that, along with iHerb's shipping policy, which is what I praise most and recommend. I bought it to try it out, to see if there are any benefits in terms of muscle recovery, due to the malic acid ingredient, and simply to ensure my daily magnesium intake. The tablet size is large; if that's a problem, you can take the smaller version.

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iHerb Customer

Posted on 13/08/2025

Japan

Verified Purchase

This was a good choice for magnesium. It has a slight apple flavor. It's a little big, so it might be hard to drink.

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Lena

Silver

Posted on 2/02/2026

United States

134

great for energy support

Verified Purchase

I've been taking malic acid for about two months now to help with my energy levels and general body aches. I've found it to be very effective. I feel less fatigued during the day and have noticed a reduction in the minor aches I used to have, especially after a long day of work.

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iHerbCustomer

Posted on 30/01/2026

Wonderful

Verified Purchase

Source Naturals MALIC ACID is a combination of malic acid and magnesium. It supports proper muscle function, cardiovascular health, and energy production. Malic acid is a naturally occurring fruit acid found in most cells in the body and is an intermediate in the Krebs cycle, where energy is captured during carbohydrate and fat metabolism. Magnesium plays a vital role in muscle relaxation and is an essential cofactor for over 300 enzymatic reactions in metabolism, ATP synthesis, and energy production.

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iHerbCustomer

Posted on 25/01/2026

Israel

good

Verified Purchase

’m very happy with the quality of the products from iHerb. Everything feels fresh, authentic, and exactly as described. The packaging is secure and well sealed, so items arrive safely without damage. The package size is generous and worth the price, lasting a good amount of time. For flavored products like gummies or powders, the taste is pleasant and easy to consume. Overall, great quality and a reliable shopping experience.

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iHerb Customer

Posted on 21/10/2025

Brazil

Malic Acid

Verified Purchase

Source Naturals Malic Acid is often a combination of malic acid and magnesium. This combination is formulated to support proper muscle function, cardiovascular health, and cellular energy production. Main ingredient: Malic acid is a natural fruit acid found in most cells in the body and is an intermediate in the Krebs cycle, the process by which energy is generated from the metabolism of carbohydrates and fats. Magnesium: Magnesium, an essential mineral, plays a crucial role in muscle relaxation and is a cofactor for over 300 enzymatic reactions in metabolism and energy production. Other information: The product is suitable for vegetarians and contains no yeast, dairy, egg, gluten, corn, soy, or wheat, according to the label. Top quality

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IndianSummer

Silver

Posted on 29/06/2026

Japan

154

105

319

It's huge, but you can drink it.

Verified Purchase

I used to take one magnesium glycinate chelate tablet in the morning and one in the evening, but to help with my family member's snoring, I've started switching the morning tablet to a malic acid chelate. The product name is "MALIC ACID," but the ingredient is "magnesium malate," which appears to be almost identical to the same manufacturer's "MGNESIUM MALATE." The amount of magnesium per 3 tablets is also exactly the same, so it might be a good choice based on cost-effectiveness. Cost comparison per serving (as of the end of June 2026) ◉MGNESIUM MALATE 100 tablets: ¥1,499 → approx. ¥45 per serving 200 tablets: ¥2,753 → approx. ¥41.3 per serving ◉MALIC ACID 60 tablets: ¥1,137 → 20 servings → approx. ¥56.9 per serving 120 tablets: ¥2,034 → 40 servings → approx. ¥50.9 per serving The size is ridiculously huge, and for someone like me who prioritizes ease of swallowing when choosing supplements, it's quite bulky and seems impossible to swallow. However, when I bravely popped one into my mouth, it surprisingly went down my throat quite easily, which was a pleasant surprise. Cutting it with a pill cutter might leave a sharp edge that irritates the throat and hurts, so it might be best to just swallow it whole with plenty of water. There is also a capsule version with a similar ingredient composition, but to get the same active ingredients (425mMg + 2.5g malic acid), you have to take 6 capsules at a time, double the amount of the tablets. It's a tough decision whether to take the easy-to-swallow capsules or the bulky tablets, but with these tablets, I think I'll try MALATE next.

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iHerb Customer

Posted on 2/06/2026

Brazil

Great product

Verified Purchase

Satisfied with my purchase from iHerb. Quality products with good dosage.

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iHerbCustomer

Gold

Posted on 26/05/2026

Japan

748

425

This is a highly recommended product.

Verified Purchase

I heard that Japanese people are deficient in magnesium, so I bought this affordable supplement hoping it would help with muscle fatigue recovery. The dosage is easy to adjust, and I feel good overall. This is a supplement I want to continue taking.

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iHerbCustomer

Posted on 28/04/2026

Japan

It's big, but is it okay?

Verified Purchase

I'm taking this to supplement my magnesium intake, which I'm deficient in. It's quite large, so I chew it before swallowing. It tastes sour.

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