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Notice: We're experiencing a rapid surge in orders and are currently 2 days behind on shipping.  We apologize for the inconvenience.
Notice: We're experiencing a rapid surge in orders and are currently 2 days behind on shipping.  We apologize for the inconvenience.

Thiamine HCl (Vitamin B1)

23 reviews
We are currently experiencing a surge in orders. Orders placed today will ship within 3 business days.
What is Thiamine HCl?

Thiamine HCl is a form of thiamine (vitamin B1) that has been bonded with hydrochloride (HCl) to improve absorption. Thiamine HCl is a water-soluble vitamin that is essential in the metabolic process of the body.

Thiamine HCl Benefits

Thiamine HCl supports healthy metabolic function. It also supports the eyes, kidneys, nervous system, and brain. Thiamine HCl aids memory and cognition and helps promote recovery after strenuous exercise.

  • Supports metabolic function
  • Promotes healthy eyes
  • Works to support the kidneys
  • Fortifies the nervous system
  • Helps support brain function
  • Aids cognition & memory
  • Assists in exercise recovery

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Supplement Facts
Supplement Facts
Serving size: 100 mg
Serving per container: -
Amount Per Serving % Daily Value**
Thiamin (Vitamin B1) as Thiamine HCl... 100 mg 5933%
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, soy, dairy, yeast, gluten, corn and additives.

As a dietary supplement, take 50 mg to 100 mg daily, or as directed by physician. Individual needs may vary. 

Customer Reviews
5.0 Based on 23 Reviews
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  • Costantini
Kaitlin W.
United States United States
I recommend this product
Great Stuff

Tastes a bit bitter, but it works great for Dr. Costantini’s High Dose Thiamin Protocol!

Richard W.
United States United States
B1 pwdr

The item performed as I expected. The quality/price/delivery was first rate.

Allergy to ALL seafoods Question

Does this product contain fish or anything from the ocean

helpful to my health

I am re-ordering this vitamin B1 as it's working well with other B vitamins for my energy daily, really gives a power boost in early afternoon, mixed with orange drink and swished in the mouth to absorb better. In my one year with Bulk Supplements, I really appreciate the outstanding rapid service as well as excellent products!

I wish I had known about this years ago !!!

Glad to finally have hope in healing the root cause of migraines! So far I seem to have fewer and the ones I do get seem less in severity. As always product seems high quality, fast shipping and great customer service !!

Great Product

I love this product. I have been putting it in my morning smoothie. I have more energy each morning. I would definitely purchase again!