- DAILY ENERGY SUPPORT: Easy-to-swallow high-potency thiamine tablets for adults 18+ to take once daily, preferably with food, as a dietary supplement
- PURE THIAMINE (B1): Our potent formula delivers 250 mg of pure thiamine (B1) to support nervous system function and help convert food into energy
- BENEFITS: Vitamin B1 is part of a coenzyme family that assists enzymes in crucial chemical reactions, supporting the health of the central nervous, cardiovascular, pulmonary, & immune systems
- CLEAN INGREDIENTS: Soy & sodium free, with no added starch, wheat, corn, yeast, egg, artificial colors or flavors, gluten, fragrance, & preservatives
- TRUSTED FOR OVER 50 YEARS: Mason Natural has produced quality vitamin supplements for over five decades, adhering to cGMPs (current Good Manufacturing Practices) and US guidelines with rigorous testing & inspections

Jodie Leone –
Great results based off bloodwork/ labs
Perfect size for 1 person taking daily
AvidlyReading –
Mosquitoes no more
I ordered this for the potential mosquito control, and I was really skeptical as I get swarmed and eaten up constantly. I saw some guy on tik tok who looked like he knew his way around a farm and a car engine equally and he said to try this if you get bit a lot. He was absolutely correct. What a game changer. I have been bit twice while being outside for a long time, before this b1 I would not have been able to even be outside. Haven’t noticed any side effects at all. The pills are small and easy to swallow.
Amazon Customer –
Good product
I love how it helps me to relaxed and get to sleep.
Big Al🤩 –
🤕😷😷🤕🤕🤕
Due to some recent heavy imbibing, I’ve been advised by my doctor to take these things daily in order to save my life. 😷
Rich fitzgerald –
Quality product
Excellent
Jaime Ces –
A great supplement
Look into B1! I’m so glad I did My energy and mood are so much better. I love the quality the pill size there are no side effects and the dosage is easy to take every day. Definitely recommend vitamin B one.
Tammy –
Satisfied
Purchased on Amazon because it was cheaper
ANDY FIETZ –
Restless Leg Symptoms disappeared after using
Lifesaver!!! After watching a Dr Berg video on restless leg syndrome I popped one of these and the symptoms disappeared in 10 minutes. Amazing 🤩…. I take this B1 along w all needed supplements daily.