Customer Ratings & Reviews

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4.8

Based on 1,053 ratings

940

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What customers say

(220)

iHerbCustomer

Gold

Posted on 18/11/2025

United Kingdom

328

Verified Purchase

I love these B vitamins, first of all, the shape and size and quality are excellent, folic acid in working form

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iHerbCustomer

Silver

Posted on 7/02/2026

United Kingdom

254

Excellent!

Verified Purchase

High-quality vitamin B complex in the right dosage

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kokeshi

Gold

Posted on 19/05/2026

Japan

331

260

Did they merge with Allergy Research Group?

Verified Purchase

I hadn't paid much attention to Metabolic Maintenance before, but it seems they've merged with Allergy Research Group, so I decided to trust them and buy it. This time, it arrived in the old Metabolic Maintenance packaging. I didn't experience any niacin flush, so I think it's a high-quality vitamin B complex.

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LON-Al-KEEM

Gold

Posted on 28/08/2025

Kuwait

329

673

Distinguished

Verified Purchase

This B Complex boosted my energy throughout the day and reduced fatigue. I felt my concentration improved, especially at work. The capsules are a suitable size and easy to swallow. The package lasts for about two months. The quality is high and its rapid effect is evident. Ingredients: Quantity: Folic acid, Energy flow, Yacine, Nervous system, Metabolism, Taste

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Anna

Silver

Posted on 24/05/2026

Canada

208

Vitamin B complex

Verified Purchase

It's a great brand; they always have great ingredients without unnecessary ingredients and at fairly reasonable prices. I didn't see any special effects from these vitamins, but I had no complaints either.

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Mariana

Silver

Posted on 6/03/2026

Bulgaria

120

Great

Verified Purchase

I've been looking for a complex with a sufficient amount of vitamins for a long time and this is exactly the one that doesn't require you to take a lot of tablets and capsules.

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iHerb Customer

Posted on 20/01/2026

Kazakhstan

Verified Purchase

This complex significantly increases energy levels and reduces fatigue and irritability. It helps maintain a healthy nervous system and improves mood. It's high quality and easily absorbed thanks to active vitamins (such as methylated forms of B-12 and folic acid). The well-packaged glass jar clearly shows the quality of the product. I noticed the results immediately.

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iHerb Customer

Posted on 5/10/2025

Azerbaijan

Verified Purchase

An excellent B-complex. I really liked this B-Complex from Metabolic. The ingredients are impressive—it uses active forms of vitamins that are easily absorbed. After just a couple of weeks, I noticed more energy, improved mood and concentration, and decreased irritability. It became easier to wake up in the morning. The capsules are small, easy to take, and there's no unpleasant aftertaste. I had no side effects. An excellent option for those who lead a fast-paced life and want to support their nervous system and energy levels. I recommend it!

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iHerb Customer

Silver

Posted on 26/08/2025

Kazakhstan

158

Verified Purchase

"The vitamins were a pleasant surprise: high-quality packaging, everything is reliable and neat. The product itself is of excellent quality, the ingredients are the best, you feel a surge of energy and noticeable results after a while. I am especially pleased with the pleasant taste, taking them is easy and even pleasant. The health results are noticeable. I recommend them!"

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Victoria

Silver

Posted on 22/12/2025

Bulgaria

235

214

Verified Purchase

The composition of this complex is very good; I bought it to restore and maintain energy at the cellular level.

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Customer Ratings & Reviews

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(220)

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