Page 1 - Reviews - Source Naturals, Benfotiamine, 120 Tablets - iHerb
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Customer Ratings & Reviews

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4.7
Based on 1,434 ratings
1,139
197
72
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What customers say
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English (UK)
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iHerb Customer
Posted on 5/07/2026
United Kingdom
8
0
0
0
Great vitamin b1
Verified Purchase
Easily tolerated b1, dose seems just right for me. No stomach irritation or anything.
Auto-translated from English
iHerb Customer
Silver
Posted on 1/03/2026
United Kingdom
277
0
0
0
Excellent Product
Verified Purchase
Well packaged item with long expiry. Worked as intended. Will buy again from iherb.
Auto-translated from English
DinaraIssakhan
Gold
Posted on 14/04/2026
Kazakhstan
398
40
6
6,943
Verified Purchase
Benfotiamine is a form of vitamin B1 that is better absorbed by the body and acts longer in tissues. The main benefits of benfotiamine: 1. Nervous system Helps restore and protect nerve fibers. Often used for: • numbness • tingling • "pins and needles" • diabetic neuropathy 2. Sugar and glucose metabolism Reduces the damaging effects of high sugar on blood vessels and nerves (especially in diabetes and insulin resistance).
Auto-translated from Russian
DinaraIssakhan
Gold
Posted on 14/04/2026
Kazakhstan
398
40
6
6,943
Verified Purchase
Benfotiamine is a fat-soluble form of vitamin B1 (thiamine). It is better absorbed than regular vitamin B1. ⚡ Nervous System • supports nerve function • may help with irritability • participates in brain development 🍬 Sugar Metabolism • improves glucose utilization • may be useful for metabolic disorders 💪 Energy and Development • participates in energy production • important for a child's growth and activity
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iHerbCustomer
Gold
Posted on 29/01/2026
Hong Kong
588
6
0
22
Related to memory
Verified Purchase
It's made a huge difference since I started using it; things I didn't remember before can now be returned – it's a real discovery!
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iHerbCustomer
Gold
Posted on 17/11/2025
Taiwan
7,475
0
0
411
I recommend it.
Verified Purchase
Vitamin B1, or thiamine, is essential for many processes in the body, especially the nervous system and energy metabolism. However, I've long known that not all forms of thiamine are equally well absorbed. That's why I decided to try benfotiamine—a lipophilic (fat-soluble) derivative of thiamine, known to have much better bioavailability and effectiveness. I chose Source Naturals Benfotiamine 150 mg, and I haven't regretted it for a second.
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iHerbCustomer
Gold
Posted on 12/11/2025
Kyrgyzstan
2,318
0
5
122,025
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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iHerb Customer
Gold
Posted on 15/10/2025
Kazakhstan
352
0
8
14
Verified Purchase
These are excellent vitamins. I liked them for several reasons: 1. Price 2. Excellent taste 3. Product quality 4. Excellent results 5. Contains a large number of useful substances 6. Convenient packaging and useful ingredients, the ability to choose the size and dosage 7. Great benefits for health and immunity 8. Natural ingredients I recommend this wonderful product to everyone, it completely matches the description and expectations. No problems were found. Thank you for the fast delivery
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iHerb Customer
Posted on 30/09/2025
Spain
92
0
0
25
Perfect
Verified Purchase
Fat soluble form of vitamin B1. High quality supplement from a reputable company, small size tablet and easy to swallow, and effective for a multitude of benefits including consistent blood sugar making a useful supplement for diabetics, also especially useful for neuropathy, or if you have a B1 deficiency. Highly recommended!
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kate
Gold
Posted on 10/08/2025
Uzbekistan
802
0
1
25
Verified Purchase
Benfotiamine is a more bioavailable derivative of thiamine (vitamin B1). Unlike regular thiamine, benfotiamine is fat-soluble and more physiologically active. It promotes normal glucose utilization by stimulating transketolase, an enzyme necessary for maintaining normal glucose metabolism pathways. Normal glucose levels are vital for promoting the health of endothelial cells in the kidneys and retina. super quality, natural ingredients, small capsule size
Auto-translated from Russian