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THORNE

Thorne Basic B Complex, 8 Active B Vitamins & Choline, 60 Capsules

  • Based on 4,673 reviews
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Features

  • Complete Formula: Each capsule provides a balance of 8 water-soluble B vitamins (B1, B2, B3, B5, B6, B7, B9, and B12) plus choline in their active, tissue-ready forms to enhance bioavailability in the body*
  • Cellular Energy: B vitamins support the conversion of carbohydrates into fuel for the body, as well as the metabolism of fats and proteins, to enhance cellular energy production and healthy red blood cell formation*
  • Cognitive Health: Supports an optimally functioning nervous system, a healthy brain, and nerve cells by serving as enzymatic cofactors to help make numerous brain neurotransmitters and support a healthy mindset*
  • 4 Rounds of Testing: Our state-of-the-art laboratories enable us to conduct 4 rounds of testing on every product, from analyzing the purity of raw materials to confirming the shelf life of finished formulas
  • Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)

Description

Basic B Complex Basic Nutrients Creatine Magnesium Glycinate Super EPA Berberine Magnesium Bisglycinate What makes Thorne supplements high quality? Thorne produces high-quality supplements through rigorous testing, well-researched ingredient sourcing, and strict manufacturing standards. We avoid unnecessary additives, binders, and fillers that may interfere with nutrient absorption. How does Thorne test its supplements for quality? To confirm the purity of our ingredients, the potency of our formulas, and the absence of all contaminants, we carry out a minimum of four rounds of testing on every product we manufacture. 100+ Thorne employees are dedicated to ensuring quality. Are Thorne supplements clinically tested and safe? Thorne partners with researchers and conducts clinical trials to support the efficacy of our products. Our team of doctors and medical experts substantiate each ingredient in every formula based on extensive clinical research and medical literature. Why are Thorne products more expensive than other supplements? When it comes to the health of our customers, we never settle. Thorne products may be priced higher than some others because of our commitment to quality at every step. We don’t simply meet the standard in dietary supplements — we set the standard. Where are Thorne supplements made and where are the ingredients sourced from? Located in South Carolina, Thorne manufactures supplements in the USA using globally sourced ingredients. When it comes to ingredient sourcing, we seek out only the highest-quality ingredients, selecting each one for its purity and effectiveness.

Product Dimensions ‏ : ‎ 2.09 x 2.09 x 3.72 inches; 2.4 ounces


Item model number ‏ : ‎ B104


Date First Available ‏ : ‎ October 2, 2001


Manufacturer ‏ : ‎ Thorne Research


Best Sellers Rank: #1,295 in Health & Household (See Top 100 in Health & Household) #4 in Vitamin B-Complex Supplements #131 in Diet & Sports Nutrition


#4 in Vitamin B-Complex Supplements:


#131 in Diet & Sports Nutrition:


Customer Reviews: 4.7 4.7 out of 5 stars (4,673)


Brand Name: THORNE


Item Form: Capsule


Primary Supplement Type: B-Complex, Choline


Diet Type: Gluten Free


Flavor: Unflavored


Product Benefits: Energy Management


Age Range Description: Adult


Specific Uses For Product: Brain


Number of Items: 1


Dosage Form: Capsule


Global Trade Identification Number: 32


UPC: 693749104032


Manufacturer: Thorne Research


Model Number: B104


Manufacturer Part Number: B104


Unit Count: 60 Count


Item Weight: 2.4 ounces


Item Dimensions: 2.09 x 2.09 x 3.72 inches


Allergen Information: Dairy Free, Fish Free, Shellfish Free, Soy Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 12

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Top Amazon Reviews

    • One of the Best Formulas For MTHFR - Also, Here's Some Other Tips:
Updated as of 10/10/2022: I have known that I have the MTHFR gene mutation for about 12 years now. Even after diagnosis, I was using a few other B-complexes which I though were o.k. for my condition, but I did not realize that the B6 was not methylated. Turns out B6 has to be in the form of Pyridoxal 5-Phosphate, NOT Pyroxidine, to be more bioavailable to those who have MTHFR and do not methylate properly. I never knew that until about 5 years ago; the doctor I tested with didn't explain that part. After this discovery, I researched various B-complex formulas, and picked this one. I also wanted a B-complex that had methylated folic acid and that did not have a super high dose of methylcobalamin (B12), since my blood was testing high for B12 already. This formula fit the bill very well. A few other tips: 1) The amount of methylated folic acid per capsule here is low (400mcg). If you only take one capsule per day, I would also recommend taking additional methyl-folate if you do not methylate. However, please first discuss with your chosen physician, if possible. 2) If you take B6 in its methylated form of Pyridoxal 5-Phosphate (a.k.a. P5P), you also need to take magnesium so that the P5P pathway will work properly. .Without at least some magnesium to work with, you may end up feeling tired and with lower energy, which is probably not what you want. 3) B6 - along with certain co-factors like magnesium, zinc, vitamin-C, and folate, is necessary for the production of certain neurotransmitters like GABA and norepinephrine, as well as for the conversion of tryptophan or 5-HTP into serotonin. So you may want to consider taking some of these additional co-factors to enhance your results with this product (only folate is included in this product, you would have to buy the rest separately). Also note: Tyrosine is also required for the synthesis of dopamine, but I have not tried taking that yet. I believe I have been low in neurotransmitter production, and my nervous system has been a mess, due to a 12-year highly stressful job and the resulting sky-high cortisol levels (Thankfully, I am no longer at that job!). It's been getting better slowly now.....it takes time and it's also very helpful to decrease your sugar and simple carb intake (e.g. white flour). 4) B6 and zinc are both needed for the production of pancreatic enzymes and hydrochloric acid, so if you have low stomach acid / poor digestion, this may help. (Zinc is not included in this formula but you may wish to add it if you are looking to help your production of digestive enzymes) In summary, this formula really helps with all the above, and it may help you too. Douglas Labs also makes a similar formula although it has some variation in it's mix. Best wishes to you. Addendum, additional updates since 2017: I had started taking this Thorne Basic B once a day plus an additional 50mg -100mg of P5P back in 2017-2018. Sometimes I would miss a day of both, I'm not perfect :). Eventually I got more disciplined and was taking the Basic B twice a day. I felt that was working better for me. Overall I can say for sure that the combo has helped to calm down my nervous system. I even went through some serious surgeries and medical procedures (extremely stressful) in 2017 and 2018, and in the past I would be a nervous wreck 24/7 and would not be able to calm down. However, I no longer get that uncontrollable anxiety anymore, although there can be some days where I can still fall into a depressive state. Magnesium powder or capsules have also helped keep me calmer (at bedtime), and I have taken some Skullcap, Ashwagandha, and/or Passionflower at times to further calm myself down as needed. Since 2018 I have also tried other methylated B-complex formulas like MethylPro, Douglas Labs, Pure Encapsulations, Nordic Naturals, and Metabolic Maintenance - just to experiment. However I keep returning to this one because it seems to work the best for my physiology. Together with the P5P, this has been like a lifeline for me. I hope it can work for you too if you decide to try it. ... show more
Reviewed in the United States on June 25, 2017 by Banyon G.
    • Easy to Take and Great Quality
Review Image by Eren
Review Image by Eren
I’ve been very happy with this B complex. The dosage is convenient and the capsules are easy to swallow and digest. There’s no noticeable smell or taste, which is a big plus for me. I’ve been taking it regularly and feel like it gives me good, steady energy without making me feel uncomfortable. I also like the ingredient profile and trust Thorne as a brand. Overall, a high-quality B complex that’s easy to add to my daily routine. ... show more
Reviewed in the United States on August 11, 2026 by Eren
    • Works good, effective.
I can tell this is a good brand, because it is effective at keeping my nerves out of pain.
Reviewed in the United States on August 3, 2026 by BossaBaby
    • I buy it regularly!
I’ve been taking these vitamins for several years now. They give me a boost of energy and improve my mood, sleep, and how I feel upon waking. I highly recommend them if you have a confirmed deficiency, and they are also excellent for prevention💯
Reviewed in the United States on August 7, 2026 by Natalia
    • Good option, but not for me
Overall solid option for those it works for, just not for me. I definitely feel a difference in my sleep and energy while taking it, but about a week in of taking it I started getting a very red flushed face, itchy skin, and some stomach issues.
Reviewed in the United States on June 9, 2026 by Tyler
    • High quality
Have been using it for months. Great product. No after taste. Seems high quality. Worth the extra few pennies over cheaper competitors. I also use vitamin C and D from the same manufacturer.
Reviewed in the United States on June 22, 2026 by MC
    • No jittery feeling!
I have MTHFR and have tried many brands of B over the years. They always made me super jittery. I've been on these a week and no jitters!! So far, so good. I'll post back if any changes, but I do feel good on these.
Reviewed in the United States on July 18, 2026 by crackalackin
    • More energy and better thinking at 67 years old!
This is an awesome vitamin! Gives me so much more energy and I can remember even better! Tried to go without it and couldn’t get motivated to do a thing! This will be a monthly purchase!
Reviewed in the United States on July 28, 2026 by C. Hunt

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