Page 1 - Reviews - Metabolic Maintenance, B-Complex, 90 Vegetarian Capsules - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorised distributors.Show more
4.8
Based on 1,053 ratings
940
78
24
4
7
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What customers say
(220)
 
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English (UK)
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English (UK)
Translated reviews
iHerb Customer
Posted on 21/10/2025
Australia
50
0
0
1
Прекрасно!
Verified Purchase
Super product, I will definitely order it again, I recommend it to everyone, the packaging is of high quality, and the ingredients are excellent. Fast delivery, everything arrived in good condition and was well packaged !!!
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iHerb Customer
Posted on 3/09/2025
Australia
51
0
0
1
Good quality.
Verified Purchase
Great activated b complex. This brand is always good quality.
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kokeshi
Gold
Posted on 19/05/2026
Japan
331
39
0
263
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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Anna
Silver
Posted on 24/05/2026
Canada
208
0
0
7
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
124
0
1
8
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
13
16
0
0
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
24
25
0
5
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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Victoria
Silver
Posted on 22/12/2025
Bulgaria
239
214
5
96
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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iHerb Customer
Silver
Posted on 25/02/2026
Kazakhstan
141
17
0
11
Verified Purchase
This highly potent B-complex formula contains all eight essential B vitamins, plus choline, inositol, and PABA. While each ingredient plays a unique role in the body, they work together to support mood, energy production, nervous system function, and cardiovascular health. Our B-complex contains the active phosphorylated forms of vitamins B2 (riboflavin) and B6, as well as the methylated forms of vitamin B12 (cobalamin) and B9 (folate), providing superior bioavailability and maximum benefit.
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iHerbCustomer
Gold
Posted on 12/11/2025
Kyrgyzstan
2,318
0
5
122,033
Verified Purchase
I've been taking these vitamins for several weeks now, and I'm really feeling the benefits. I feel more alert, have more energy and mental clarity, and my mood has improved. My constant fatigue has disappeared, I sleep better, and my skin and hair look much healthier. I especially like the balanced composition: it contains B vitamins, vitamin D3, C, E, zinc, magnesium, iron, selenium, and biotin—everything you need to support your body, immune system, and nervous system. The capsules are easy to swallow, gentle on the stomach, and well-absorbed. I'm very pleased with the quality and results! This is an excellent complex for those who want to maintain their health, energy, and beauty every day.
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