Vitamin
Thorne
9
Overall AI Score
Based on 3 reviews
Excellent

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Quick Facts

Form
Capsules
Dose
Full-spectrum B complex per capsule
Serving
1 capsule
Servings
60
Vegan
Yes
Made in
USA

Thorne Basic B Complex - 60 Capsules

by Thorne

NSF Certified for Sport GMP Certified Gluten-Free Third-Party Tested

A premium B-complex supplement featuring all eight B vitamins in their bioactive, tissue-ready forms — including methylfolate (5-MTHF) instead of folic acid and methylcobalamin instead of cyanocobalamin. Thorne is one of the few supplement companies trusted by professional athletes and is NSF Certified for Sport. The capsule also includes choline citrate for additional methylation support. Particularly recommended for individuals with MTHFR gene variants who cannot efficiently convert synthetic B vitamins to their active forms.

AI

AI Review Summary

Thorne Basic B Complex is the gold standard for bioactive B-vitamin supplementation, using tissue-ready forms throughout including methylfolate and methylcobalamin. The NSF Certified for Sport designation provides exceptional third-party quality assurance that few competitors match. Users with MTHFR variants and methylation concerns consistently report noticeable benefits. The main barrier is price — it costs significantly more than standard B complexes, and those without specific genetic or health needs may not benefit from the premium formulation.

Based on 3 reviews from Reddit, Amazon, YouTube, and other sources
Effectiveness How well the product works based on user reviews
9/10
Excellent
Ingredient Quality Clean label, bioavailable forms, minimal fillers
10/10
Excellent — Pharmaceutical grade, minimal/no fillers
Value for Money Price relative to quality and quantity
6/10
Average
Side Effects Profile Higher = fewer/milder side effects reported
8/10
Good — Minor side effects in small number of users
Certifications & Testing Third-party testing, GMP, and quality certifications
10/10
Excellent — Multiple independent certifications
Overall Score Weighted overall recommendation
9/10
Excellent

Pros

  • +All B vitamins in bioactive tissue-ready forms
  • +NSF Certified for Sport — rigorous third-party testing
  • +Includes choline for additional methylation support
  • +Vegan-friendly cellulose capsules

Cons

  • -Premium price — roughly double the cost of standard B complexes
  • -Only 60 capsules per bottle at 1-3 per day dosing
  • -Overkill for people without specific methylation concerns

Best For

Individuals with MTHFR gene variants affecting B-vitamin metabolism Athletes requiring NSF-certified supplements Those seeking the highest-quality bioactive B complex available

Watch Out

  • !High-dose niacin (140mg) may cause flushing in sensitive individuals
  • !Some people report vivid dreams with high-dose B6 — start with one capsule

Ingredients & Composition

Active Ingredients

Thiamin (as Thiamin HCl)
110mg
Riboflavin (as Riboflavin 5'-Phosphate Sodium)
10mg
Niacin (as Niacinamide + Niacin)
140mg
Vitamin B6 (as Pyridoxal 5'-Phosphate)
10mg
Folate (as L-5-MTHF Glucosamine Salt)
667mcg DFE
Vitamin B12 (as Methylcobalamin)
400mcg
Biotin
400mcg
Pantothenic Acid (as Calcium Pantothenate)
110mg
Choline (as Choline Citrate)
28mg

Other Ingredients

Hypromellose (cellulose capsule), Microcrystalline Cellulose, Calcium Laurate, Leucine, Magnesium Citrate, Silicon Dioxide

Clean Label Analysis

While the capsule does contain some standard excipients like MCC and silicon dioxide, Thorne uses calcium laurate instead of the more common magnesium stearate, which some practitioners prefer. The leucine serves as a natural flow agent. Overall a cleaner-than-average formulation for a complex product.

Allergens: Free from: dairy, gluten, soy, eggs, fish, shellfish, tree nuts

Quality & Testing

Third-Party Tested

This product has been independently tested by third-party laboratories for purity, potency, and safety.

Certifications

NSF Certified for Sport
GMP Certified
Gluten-Free

Additional Specifications

Type
Vitamin
Form
Capsules
Dose
Full-spectrum B complex per capsule
Serving Size
1 capsule
Fillers Analysis
While the capsule does contain some standard excipients like MCC and silicon dioxide, Thorne uses calcium laurate instead of the more common magnesium stearate, which some practitioners prefer. The leucine serves as a natural flow agent. Overall a cleaner-than-average formulation for a complex product.
Allergens
Free from: dairy, gluten, soy, eggs, fish, shellfish, tree nuts
Made In
USA

How We Score Supplements

Our AI analyses reviews from Reddit, Amazon, YouTube, and specialist forums, then scores each product on a 1-10 scale across six evidence-based categories:

1

Effectiveness

How well the product delivers its claimed benefits, based on aggregated user experiences.

2

Ingredient Quality

Bioavailable forms, clean label, minimal fillers, no artificial junk. Higher = cleaner.

3

Value for Money

Price per serving relative to ingredient quality and effectiveness.

4

Side Effects Profile

Higher score = fewer side effects. 10 means virtually no adverse reactions reported.

5

Certifications & Testing

Third-party lab testing, GMP certification, and independent quality verification.

6

Overall Score

Weighted combination of all factors. Our bottom-line recommendation.

Disclaimer: AIScored provides AI-generated summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.