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Thorne Research, B-Complex #5, 60 Veggie Caps (Discontinued Item)


Out of Stock - Discontinued
  • Shipping Weight: 0.18 lbs
  • Product Code: THR-10503
  • UPC Code: 693749105039
  • Package Quantity: 60 Veggie Caps
  • Dimensions: 2 x 2 x 3.9 in, 0.15 lbs
Product Overview


  • Dietary Supplement
  • Hypoallergenic

A Vitamin B-Complex with Extra B5 for Adrenal Support

  • Unlike Many B Vitamin Products, B Complex #5 Contains the Active Forms for Enhanced Bioavailability
  • B-Complex #5 Contains an Optimal Balance of Essential B Vitamins with Extra Vitamin B5 As Calcium Pantothenate
  • B-Complex #5 is Yeast Free
  • Without Preservatives, Magnesium Stearate, or Other Lubricants and Diluents
  • Made without Flowing Agents that can Inhibit Bioavailability

Pantothenic acid (vitamin B5) is part of the B-vitamin complex and is essential for healthy adrenal and immune function. In particular, pantothenic acid serves as the starting material for the synthesis of coenzyme A, which is important for metabolism of fats and synthesis of adrenal hormones. Pantothenic acid plays a key role in the formation of acetylcholine, which is needed in the transmission of nerve impulses. Thorne supplies 225 mg of pantothenic acid in each capsule of B-Complex #5 in addition to a blend of B vitamins. This formula provides support for those who not only require a good vitamin B-complex but who may also need extra adrenal support.

Thorne's B-Complex #5 supplies 225 mg of pantothenic acid and the bioactive forms of the other B vitamins in each capsule to ensure you get the most bioavailable B-complex available.

B-Complex #5 consists of a group of eight water-soluble compounds: thiamine (vitamin B1), riboflavin (vitamin B2), niacin (vitamin B3), pantothenic acid (vitamin B5), pyridoxine (vitamin B6), cobalamin (vitamin B12), folate, and biotin. Although each B vitamin is chemically distinct, they often work together in various biochemical functions throughout the body – from cellular energy production, to healthy red-blood-cell formation, to healthy neurological function. Most B vitamins, with the exception of vitamin B12, are not stored in the body; consequently, they must be acquired daily from the diet in order to maintain optimal health.

Supplementing with active B vitamins is extremely important to everyone, especially individuals who may not be able to convert non-active vitamins to their active forms in the liver because of compromised liver function, poorly functioning enzymes, digestive disturbances, or age. Dietary supplements containing these active cofactors have enhanced bioavailability, ensuring the body gets the nutrients it needs.

Suggested Use

Take 1 capsule one to three times daily or as recommended by your health-care practitioner.

Other Ingredients

Hypromellose (derived from cellulose) capsule, magnesiumcitratelaurate, silicon dioxide.


Tamper Evident: Use only if bottle is sealed. Store tightly sealed in a cool, dry place.

If pregnant, consult your health care practitioner before using this product.

Supplement Facts
Serving Size: One Capsule
  Each Capsule Contains: % DV
Thiamine (as Thiamine HCl) 40 mg 2,667%
Riboflavin (25 mg as Riboflavin and 3.6 mg as Riboflavin 5'-Phosphate Sodium) 28.6 mg 1,682%
Niacin (as Niacinamide) 80 mg 400%
Vitamin B6 (20 mg as Pyridoxine HCl and 3.4 mg as Pyridoxal 5'- Phosphate) 23.4 mg 1,170%
Folate (100 mcg as Calcium Folinate and 100 mcg as 5-Methyltetrahydrofolate from L-5-Methyltetrahydrofolic Acid, Glucosamine Salt) 200 mcg 50%
Vitamin B12 (50 mcg as Adenosylcobalamin and 50 mcg as Methylcobalamin) 100 mcg 1,667%
Biotin 80 mcg 27%
Pantothenic Acid (as Calcium Pantothenate) 225 mg 2,250%
Choline Citrate 40 mg *
*Daily Value (DV) not established.
iHerb Customer Reviews

Favorite B complex (discontinued)

Posted by Reviewer1148576 on Jul 17, 2013

Very disappointed to see that this B complex has been discontinued as it has been well tolerated by my body where most have not. Looks like I will have to go back to purchasing single B vitamins to produce this mix.

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B-complex #5

Posted by 5621396959923547866 on Jun 12, 2013

For over 30 years, I have tried numerous brands of b-complex and have not experienced the benefits that a person is supposed to get and I could not figure out why. I thought I would give this product a try and I am so happy that I did. The THORNE b-complex is the first one ever in which I have noticed the benefits that the b-vitamins are supposed to provide. I plan to continue with this product.

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most suitable for me

Posted by Reviewer1351453 on May 27, 2013

I've tried many B complex , it's the only one i can digest properly without bad side effect.

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just what i needed

Posted by 5320293419173470085 on Nov 24, 2012

the product is what i needed, thxy

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Thorne Research, B-Complex #5, 60 Veggie Caps

Posted by Reviewer2485668 on Oct 24, 2012

Thorne Research, B-Complex #5, 60 Veggie Caps

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