★★★★★
High quality Vitamin B-12 product
Customer—November 12, 2025
I use this product daily. It’s a quality b-12 product. It gives me energy and helps with mouth sores that I get due to a medication that I take. Read more
THORNE
THORNE - Vitamin B12 - as Methylcobalamin - Supports Heart Nerve Health Blood Cell Function Healthy Sleep Methylation
$24.00
About this item
- Active B12: Each capsule provides 1 mg vitamin B12 as methylcobalamin, which is more efficiently used by the body compared to other forms of vitamin B12, like cyanocobalamin
- Heart & Brain Health: Supports a normal level of homocysteine in the body to benefit healthy cardiac function, blood cell formation, and optimal nerve function*
- Sleep Support: Helps maintain normal circadian rhythms to support restful sleep and supports healthy methylation processes in the body*
- Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
- Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)
$24.00
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Product details
| Brand | THORNE |
|---|---|
| Item Form | Capsule |
| Primary Supplement Type | Vitamin-b |
| Diet Type | Gluten Free |
| Flavor | Unflavored |
Technical specifications
| is_discontinued_by_manufacturer | No |
|---|---|
| product_dimensions | 1.83 x 1.83 x 3.22 inches; 1.12 ounces |
| item_model_number | B125 |
| date_first_available | January 11, 2004 |
| manufacturer | Thorne Research |
| best_sellers_rank | #1,439 in Health & Household ( See Top 100 in Health & Household ) #8 in Vitamin B12 Supplements |
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Customer reviews
4.73,058 ratings
Customers say
Customers find this B12 supplement effective, with one noting it works well for nervous system support, and many reporting no side effects and improved energy levels throughout the day.
★★★★★
Very impressed with product.
Brian Greene—December 20, 2025
My physician recommended this product is a good supplement and it had 10 times the effect of the average store-bought B12 products. I would highly recommend it. Read more
★★★★★
Less fatigue
KT—December 18, 2025
This works well for me. No upset tummy or side affects. I feel much better Read more
★★★★★
Excellent product
John—December 7, 2025
Great high quality product. Nice small size Read more
★★★★☆
Nice multivitamins
The Dad—May 22, 2025
Tastes like a normal multivitimin, smells like one also. Size of the pill is about the average size of most other pills. Other than that, I took them as directed. Didn't notice any crazy differences tbh, just felt healthier knowing that I was supplementing like I was supposed to haha Read more
★★★★★
Excellent Quality Supplement
RK—May 20, 2025
I have been taking Thorne B-12 for several years and have been very pleased the the quality and consistency of this product and brand. There are definitely multiple health benefits of taking B-12, but I encourage everyone to take a little time to do your own research regarding your specific needs. For this brand of B-12, the capsules are small and very easy to swallow. Thorne uses the highest quality ingredients and are a trusted brand based on multiple reviews and our own experience in taking their supplements. Stay Healthy & Enjoy LIfe. Read more
★★★★★
Brought my homocysteine down, I believe it really contains what it says it does
NELS R BALWIT—November 13, 2025
As far as one person's testament goes, I have blood test results showing this made a difference for me, it brought my homocysteine levels wayy down to the desirable range! I have an MTHFR gene mutation, I methylate my vitamins about half as well as someone without the mutation. Thus, I need to supplement with an already methylated form of B vitamins, etc. I can't comment on other supplements to compare, but this seems to be well worth the price. Read more
★★★★★
The best!
Cori E—December 29, 2025
Great product. Read more
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