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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.7
Based on 1,045 ratings
851
125
48
13
8
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What customers say
Customers generally appreciate the high quality and effectiveness of this Vitamin B-1 supplement, noting improvements in energy levels, mood, cognitive function, and overall well-being. Many users report that it helps with stress relief and nervous system health. However, several customers find the pills too large and difficult to swallow, with some mentioning an unpleasant smell. The product is often recommended by doctors for specific health issues like anxiety and nervous system disorders. Despite mixed experiences regarding immediate effects, the majority of reviews highlight positive long-term benefits.
Review highlights
Customer reviews (1,035)
Product reviews solely reflect the views and opinions expressed by the contributors and not those of iHerb. iHerb does not verify or endorse any claims made in these reviews. Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
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Reviews from Norway
Reviewer Country
English
Translated reviews
Timothy
Silver
Posted on May 25, 2026
Norway
141
0
0
2
High dose
Verified purchase
High dose for people who want to megadose B1. Quality seems just fine 🙂
iHerb customer
Silver
Posted on Aug 9, 2023
Norway
187
0
0
63
Verified purchase
Incorporating Solgar Vitamin B-1 (Thiamine) 500 mg tablets into my daily routine has been a wise choice for supporting my energy metabolism and overall well-being. This supplement has become an important addition to my health regimen. The potency of this Vitamin B-1 supplement is noteworthy. With 500 mg per tablet, it offers a convenient and effective way to promote energy production and maintain nervous system health. The supply of 100 tablets ensures I have sufficient doses for an extended period. Since adding this supplement to my routine, I've noticed positive effects on my overall energy levels and nervous system function. Vitamin B-1 plays a crucial role in converting food into energy and supporting the health of the nervous system. Recognizing these benefits adds value to my health journey. The tablets are easy to include in my daily routine, and I haven't experienced any adverse effects. I appreciate that the formula is designed to provide the benefits of Vitamin B-1 without unnecessary additives. Solgar is a brand I trust, and their Vitamin B-1 (Thiamine) 500 mg tablets maintain their reputation for quality. The packaging is designed to preserve the freshness and potency of the tablets. In conclusion, if you're seeking a reliable source of Vitamin B-1 to support energy metabolism and nervous system health, Solgar Vitamin B-1 (Thiamine) 500 mg tablets are an excellent choice. I've experienced positive results and feel confident in the value they bring to my daily regimen. These tablets have become a vital part of my health routine, and I'm genuinely satisfied with the outcomes.
Mar3X
Posted on Feb 15, 2025
Slovakia
9
2
0
128
Great for certain migraine types
Verified purchase
My grandmother was taking this for a couple of years for her migraines. She had to take 1-2 tablets of 500mg thamin to have headache gone. Thanks to B1, she can avoid painkillers and its side effects. It works the same for my mother-in-law. I've tried B1 myself, but to my type of headaches, it does not help.
iHerb customer
Silver
Posted on Nov 3, 2025
United States
128
123
0
4
excellent
Verified purchase
quality benefit ingredient fiber quality benefit ingredient fiber package size benefit age gut diet taste composition quality benefit ingredient fiber quality benefit ingredient fiber package size benefit age gut diet taste composition quality benefit ingredient fiber quality benefit ingredient fiber package size benefit age gut diet taste composition quality benefit ingredient fiber quality benefit ingredient fiber package size benefit age gut diet taste composition
5d4c3de3-f778-4529-be84-7f31e66bbda7
iHerbCustomer
Posted on Jun 2, 2025
Philippines
2,107
0
0
73
Verified purchase
Thank you for providing such outstanding supplements! The quality is exceptional, with thoughtfully selected ingredients that offer remarkable health benefits. Your products have made a significant positive impact on my overall well-being. I also appreciate the secure and reliable packaging. Thanks again, iHerb!
Morticia
Silver
Posted on Dec 13, 2025
United States
282
0
1
18
Large pill
Verified purchase
Very large pill! A bit hard to swallow fue to size, but makes sense considering the dosage. Otherwise works well, compressed pill not a capsule.
iHerb customer
Posted on Jun 23, 2025
United Arab Emirates
253
8
1
136
goood
Verified purchase
Irecently tried this supplement, and here are my thoughts on its effectiveness, and overall value. Effectiveness: I found this supplement to be quite effective. After using it consistently, I noticed specific benefits, e.g., increased stamina, better sleep, reduced muscle soreness]. It seems to deliver on its promises, making it a solid addition to my routine. Value: Considering the benefits and the quality of the ingredients, I believe this Supplement offers good value for the price. It's priced-e.g., 'competitively", but given the results, think it's worth the investment for those looking to enhance their health and wellness. Final Thoughts: Overall, I would recommend this supplement. It's been a beneficial addition to my regimen, and plan to continue using it in the future.
iHerbCustomer
Posted on Jun 25, 2021
424
0
0
1,829
Great foor mood and energy boost.
Verified purchase
I read that solgar has natural and not synthetic version of Vitamin B1 so i have bought it. Take 2 tabs per day in the morning with meal. You will notice more energy the whole day long and you will as well be in a better mood. It you have mood swings then give it a try. In some cases it will increase as well your mental clarity.
iHerb customer
Silver
Posted on Jan 21, 2026
United States
108
100
0
1
excellent
Verified purchase
quality benefit ingredient fiber quality benefit ingredient fiber package size benefit age gut diet taste composition quality benefit ingredient fiber quality benefit ingredient fiber package size benefit age gut diet taste composition quality benefit ingredient fiber quality benefit ingredient fiber package size benefit age gut diet taste composition quality benefit ingredient fiber quality benefit ingredient fiber package size benefit age gut diet taste composition
08db815f-509e-4a9d-80db-2ae1337cfdd4
iHerb customer
Posted on Nov 18, 2025
Korea, Republic of
14
0
0
0
최고!
Verified purchase
Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt! the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered